Localization in V2X Communication NetworksStefano Severi
Presentation made by Alireza Ghods and given by Dr. Stefano Severi at CCP Workshop co-located with IEEE Intelligent Vehicles Conference, 19th June 2016 Gothenburg (Sweden)
- IEEE 802.11p defines enhancements to 802.11 (WiFi) to support Intelligent Transportation Systems (ITS) by vehicle-to-vehicle and vehicle-to-infrastructure wireless communication. It uses dedicated 5.9GHz spectrum and improved robustness for high-speed mobile environments.
- The WAVE standards, including IEEE 1609.1-4 and SAE J2735, build upon 802.11p to provide networking services and standardized message formats for ITS applications. Key aspects include dedicated control and service channels for safety/control vs. other data, and synchronization of channel switching.
- The standards define protocols and formats for wireless access, security, networking
NGFI (Next Generation Fronthaul Interface) native RoE (Radio over Ethernet)ITU
This is a presentation and a demo for both NGFI (Next Generation Fronthaul Interface) native RoE (Radio over Ethernet) with Intra PHY split implemented in it, and CPRI over Ethernet encapsulated in structure agnostic mode. Compared to CPRI, the NGFI native RoE implementation improves bandwidth usage greatly, which better supports 5G applications demanding for higher bandwidth. In the CPRI over Ethernet demonstration, bidirectional CPRI flows are recovered without error, which enables C-RAN (centralized radio access network) architecture by using Ethernet as a transport network.
Author : Anders Lund, Bomin Li, Thomas Nørgaard, Comcores
Presented at ITU-T Focus Group IMT-2020 Workshop and Demo Day, 7 December 2016.
More details on the event : http://www.itu.int/en/ITU-T/Workshops-and-Seminars/201612/Pages/Programme.aspx
LTE networks get more mature and new terminals of different capabilities are being introduced. 3GPP just defined the new LTE-A UE categories to support terminals with peak data rates of up to 450 Mbps in the downlink. This white paper provides an overview of all existing LTE/LTE-A UE categories and presents the new Release 11 capabilities that have just been standardized. Furthermore it describes key scenarios and use cases such as the support for downlink carrier aggregation with 3 downlink carriers with up to 60 MHz of total bandwidth.
CPqD at Optical Communication Ecosystem - Last/Next 10 years and R&D&I opport...CPqD
The document discusses opportunities in optical communications research and development over the next 10 years at CPqD. It outlines CPqD's history in optical communications R&D from 1976 to the present. It then discusses technological developments over the last 10 years, including transmission rates, coherent DSP algorithms, and WDM systems. Finally, it proposes a roadmap for the next 10 years focusing on hardware, algorithms, networks, silicon photonics, and integrated photonics opportunities. Areas of focus include fiber technologies, amplifiers, spatial division multiplexing, coherent transceivers, DSP, modulation formats, network optimization, and packaging.
Technologies for future mobile transport networksITU
This presentation presents several technologies for future mobile transport networks using the seamless convergence of fiber and wireless access networks. We first present a flexible and efficient mobile fronthaul system for ultra-dense small cells using a convergence of fiber and millimeter-wave systems. We then present a simple and low cost optical system for simultaneous transmission of multiple heterogeneous wireless signals, such as multi-RATs, operators, mobile signals and fronthaul/backhaul signals, using subcarrier multiplexing intermediate frequency over fiber system and efficient data mapping and de-mapping algorithms. Finally, we present an efficient solution to provide high-speed communications to high-speed trains using a seamless convergence of wavelength-division multiplexing radio-over-fiber and linearly located linear cell systems.
Author : Pham Tien Dat, NICT Japan
Presented at ITU-T Focus Group IMT-2020 Workshop and Demo Day, 7 December 2016.
More details on the event : http://www.itu.int/en/ITU-T/Workshops-and-Seminars/201612/Pages/Programme.aspx
Localization in V2X Communication NetworksStefano Severi
Presentation made by Alireza Ghods and given by Dr. Stefano Severi at CCP Workshop co-located with IEEE Intelligent Vehicles Conference, 19th June 2016 Gothenburg (Sweden)
- IEEE 802.11p defines enhancements to 802.11 (WiFi) to support Intelligent Transportation Systems (ITS) by vehicle-to-vehicle and vehicle-to-infrastructure wireless communication. It uses dedicated 5.9GHz spectrum and improved robustness for high-speed mobile environments.
- The WAVE standards, including IEEE 1609.1-4 and SAE J2735, build upon 802.11p to provide networking services and standardized message formats for ITS applications. Key aspects include dedicated control and service channels for safety/control vs. other data, and synchronization of channel switching.
- The standards define protocols and formats for wireless access, security, networking
NGFI (Next Generation Fronthaul Interface) native RoE (Radio over Ethernet)ITU
This is a presentation and a demo for both NGFI (Next Generation Fronthaul Interface) native RoE (Radio over Ethernet) with Intra PHY split implemented in it, and CPRI over Ethernet encapsulated in structure agnostic mode. Compared to CPRI, the NGFI native RoE implementation improves bandwidth usage greatly, which better supports 5G applications demanding for higher bandwidth. In the CPRI over Ethernet demonstration, bidirectional CPRI flows are recovered without error, which enables C-RAN (centralized radio access network) architecture by using Ethernet as a transport network.
Author : Anders Lund, Bomin Li, Thomas Nørgaard, Comcores
Presented at ITU-T Focus Group IMT-2020 Workshop and Demo Day, 7 December 2016.
More details on the event : http://www.itu.int/en/ITU-T/Workshops-and-Seminars/201612/Pages/Programme.aspx
LTE networks get more mature and new terminals of different capabilities are being introduced. 3GPP just defined the new LTE-A UE categories to support terminals with peak data rates of up to 450 Mbps in the downlink. This white paper provides an overview of all existing LTE/LTE-A UE categories and presents the new Release 11 capabilities that have just been standardized. Furthermore it describes key scenarios and use cases such as the support for downlink carrier aggregation with 3 downlink carriers with up to 60 MHz of total bandwidth.
CPqD at Optical Communication Ecosystem - Last/Next 10 years and R&D&I opport...CPqD
The document discusses opportunities in optical communications research and development over the next 10 years at CPqD. It outlines CPqD's history in optical communications R&D from 1976 to the present. It then discusses technological developments over the last 10 years, including transmission rates, coherent DSP algorithms, and WDM systems. Finally, it proposes a roadmap for the next 10 years focusing on hardware, algorithms, networks, silicon photonics, and integrated photonics opportunities. Areas of focus include fiber technologies, amplifiers, spatial division multiplexing, coherent transceivers, DSP, modulation formats, network optimization, and packaging.
Technologies for future mobile transport networksITU
This presentation presents several technologies for future mobile transport networks using the seamless convergence of fiber and wireless access networks. We first present a flexible and efficient mobile fronthaul system for ultra-dense small cells using a convergence of fiber and millimeter-wave systems. We then present a simple and low cost optical system for simultaneous transmission of multiple heterogeneous wireless signals, such as multi-RATs, operators, mobile signals and fronthaul/backhaul signals, using subcarrier multiplexing intermediate frequency over fiber system and efficient data mapping and de-mapping algorithms. Finally, we present an efficient solution to provide high-speed communications to high-speed trains using a seamless convergence of wavelength-division multiplexing radio-over-fiber and linearly located linear cell systems.
Author : Pham Tien Dat, NICT Japan
Presented at ITU-T Focus Group IMT-2020 Workshop and Demo Day, 7 December 2016.
More details on the event : http://www.itu.int/en/ITU-T/Workshops-and-Seminars/201612/Pages/Programme.aspx
CommTech Talks: Elastic Optical Devices for Software Defined Optical NetworksAntonio Capone
Elastic optical networks allow network capacity to be increased at lower cost by adapting to traffic variations. Coherent optical technology enables flexible modulation formats and bandwidth usage. Elastic networks can dynamically adjust bandwidth, bit rate, and modulation based on connection properties and network conditions. This provides increased sharing of network resources and cost savings versus legacy fixed-grid networks. However, elastic network design and management poses challenges around impairment-aware routing and spectrum allocation.
I great privilege to end Ampleon Technical Conference 2021 (Nijmegen, Netherlands) with a keynote contribution on what makes Telco tick and more on what to expect from real 5G. It was as well more than 20 years since I had seen many of my old Philips colleagues (now Ampleon) which made this event very special for me as well. Of course, also super cool to see the innovation level and relevance to our deployed RAN infrastructure.
This document discusses next-generation reconfigurable optical add-drop multiplexers (NG ROADMs). It outlines the functionality requirements of NG ROADMs, including being colorless, directionless, contentionless, and gridless. It describes the technology building blocks that enable these features, such as wavelength selective switches (WSS). The document also discusses the benefits of NG ROADMs, such as increased flexibility, automatic restoration, and support for higher data rates. It concludes that NG ROADM technology prepares networks to meet current and future traffic needs.
Rate and Performance Analysis of Indoor Optical Camera Communications in Opti...Willy Anugrah Cahyadi
This document presents a dissertation written by Willy Anugrah Cahyadi for the degree of Doctor of Philosophy at Pukyong National University in November 2018. The dissertation focuses on improving the data rate and performance of optical camera communications (OCC) by investigating downlink and proposing uplink solutions. Key contributions include achieving a downlink rate of 11,520 bits/s using a split-frame technique and a rate of over 2 Mbits/s using high-density modulation with a neural network. An uplink scheme using a smartphone display is also presented achieving an effective data rate of 360 bits/s. The aim is to address critical limitations of OCC and provide complementary solutions within the standardized use cases.
Here are the key points about GPRS main concepts:
- GPRS uses packet switching rather than circuit switching, allowing variable bit rates rather than a fixed 9.6 kbps rate.
- Radio resources are shared statistically between users through dynamic allocation of timeslots. This allows optimization of resource usage.
- Variable coding schemes allow bit rates from 9 kbps up to over 150 kbps depending on radio conditions and number of timeslots allocated.
- Resources are only used when data is being sent, through the establishment of temporary block flows (TBFs).
- One timeslot can be shared by multiple MSs through time multiplexing controlled by the BSS.
- The transmission rate per radio resource is variable depending on channel quality
WAVE and 802.11p models evaluation in NS3 simulation environmentYaroslav Domaratsky
802.11p models in NS3 simulation environment and we realized in general both WAVE and plain 802.11p models models work well. Our current results described in the presentation
Update from 22 Mar 2017: slide #10 added to describe problem we discovered in fixed in WAVE protocol model.
This document summarizes an IMT-Advanced evaluation meeting held in Beijing, China on December 17-18, 2009 regarding LTE RAN architecture aspects. Dino Flore of Qualcomm Inc., the RAN WG3 Chairman, presented on topics including the EPS architecture, E-UTRAN architecture, functional split between network nodes, EPS bearer service architecture and QoS model, inter-cell interference control, and support for features like HeNB/CSG operation, SON, positioning, and E-MBMS.
Mobdiea lte overview_2nd_marketing_2014_0423_최종Kevin Kang
The document discusses LTE carrier aggregation technology. It describes Qualcomm's LTE carrier aggregation test projects in South Korea with various mobile device manufacturers. It also outlines Ericsson's LTE optimization projects with telecom operators in Saudi Arabia and South Korea. Finally, it provides background information on 3GPP LTE release 10 and release 11 specifications related to carrier aggregation configurations and bandwidth classifications.
Fronthaul technologies kwang_submit_to_slideshareKwangkoog Lee
5G Fronthaul Technologies (Especially, this document specifies the e-CPRI technology, because many telcos are now considering the eCPRI for the next fronthaul.)
5G Peak Complexity (and how to make it simpler).
Presented by Dan Warren, Head of Network Standards & Research, Samsung at Cambridge Wireless (CW), enhanced Mobile Broadband (eMBB) SIG event on 28 Nov 2019 - https://www.cambridgewireless.co.uk/events/automation-essential-5g/
*** SHARED WITH PERMISSION ***
3GPP RAN plenary meeting #84 in Newport Beach, US, in June 2019, discussed the content of 5G New Radio (5G-NR) Release 17 standardization. One of the defined key areas for 5G enhancements for 5G enhancements is NR Broadcast / Multicast (BC/MC). Important use cases for this technology are NR Vehicle-to-Everything (V2X), NR Public Safety and NR Non-Terrestrial Networks (NTN). This white paper proposes a mechanism of link adaptation in coordination with higher layer Error Correction. A detailed description and system-level simulation-based evaluation of the proposed scheme is provided in this White Paper.
Data center trends_from_telco_perspectives_kwangkoog_submitKwangkoog Lee
This slide introduces the trends of data centers of telecommunication companies. Especially, it explains why current enterprise connections are towards many data centers. Accordingly, it shows that current telcos are preparing data center interconnect (DCI) technology. Additionally, the slide introduces the KT approach for the DCI service.
Emerging Trends and Applications for Cost Effective ROADMsCPqD
The document discusses emerging trends and applications for reconfigurable optical add-drop multiplexers (ROADMs) and wavelength selective switches (WSS). It notes that higher port count WSS are the fastest growing area to support applications like data centers, wireless backhaul, and utilities networks. The document summarizes the evolution of ROADM technology over generations from 1998 to present. It then outlines various ROADM architectures including multi-degree colorless and directionless designs using dual WSS or high port count WSS. These emerging technologies allow more flexible and efficient optical networking to support bandwidths from 10G to 400G and beyond for 5G, SDN/NFV applications and network virtualization.
LTE Release 13 and SMARTER – Road Towards 5GYi-Hsueh Tsai
3GPP Overview
TSG Plenary Status
RAN workshop on 5G
SA1 5G SMARTER
Radio Interface Technology definition
Time Delay analysis
Four New Building Block Study Items for 5G
Enhanced Mobile Broadband
Massive Internet of Things
Critical Machine Communications (ultra-reliable and low latency)
Network operation (including Migration and Interworking)
Capabilities of Future IMT systems
Conclusions
This presentation and demo show the hardware which consist of 5G UE’s, 5G radios, a fronthaul network and C-RAN with high density switches and servers, a transport network of 3 DWDM switches and a DC network of servers and high density switches. The basic software arrangement will be shown with emphasis on the structure of the orchestration and SDN controllers and the choice of virtualization components and logical networking. An eMBB slice will be brought up which will entail programming of the radios, the fronthaul, backhaul, a node B and the core. Its behavior will be noted through the test UE’s. An URRLC slice will be brought up and its nodeB and core will be demonstrated through its test UE’s showing extremely low latency. An MMTC slice will be brought up and a large number of test IOT devices will be demonstrated via the test UE’s. The eMBB slice will be augmented by programming a slice selection function that will create a ICN slice and an application (TBD) will be shown running over that ICN core (but with the eMBB slice). Spectrum will be reassigned from slice to slice and the changes noted as an optimizer recomputes the proper allocation of resources and executes it. Traffic will be increased and the changes in the backhaul over transport and core function placements will be noted. An additional demonstration will show creation of multiple 4G air interfaces using the same infrastructure network but with 4G radios and 4G UE’s using OAI software and ETTUS SDRs. A Skype session will be created between the two 4G slices. We will also try to show some of the EPC functions being moved while the UE sessions are not impacted.
Author : Peter Ashwood-Smith, Huawei Technologies
Presented at ITU-T Focus Group IMT-2020 Workshop and Demo Day, 7 December 2016.
More details on the event : http://www.itu.int/en/ITU-T/Workshops-and-Seminars/201612/Pages/Programme.aspx
5G Transport Network Requirement for Indian Telecom By Subrata SenSukhvinder Singh Malik
There are few people whom we meet and connect instantly. Recently, We met Subrata Sen, (Head, Fiber/Transport Planning at Bharti Infratel Ltd) and veteran in telecom industry during a conference. During our conversation, we had long discussion about upcoming technologies and how important the backhaul , specially fiber is for future network.
For example, if we wish to move our telco infrastructure to Cloud, virtualize our network elements, do we have the capability to move all data traffic to centralized cloud? Mr. Sen provided his expert opinion on how the transport network needs to be redesigned and what are important parameters for the same.
Control Plane for High Capacity Networks PublicCPqD
This document discusses network programmability and SDN for transport networks. It motivates network programmability to allow dynamic network adaptation, faster service delivery, and integration of NFV. It describes SDN for transport networks including a multilayer SDN orchestration approach to automate provisioning across domains. It also summarizes Telefonica's activities applying SDN to transport networks through trials and proofs-of-concept including a multi-vendor OFC 2016 demo.
Speed5G Workshop London presentation of the Speed5G MAC frameworkKlaus Moessner
The document summarizes innovations to the medium access control (MAC) layer from the SPEED-5G project to support enhanced dynamic spectrum aggregation (eDSA). It describes a MAC framework to coordinate scheduling across radio access technologies at the MAC level. It also presents two novel MAC designs - the dynamic channel selection MAC (DCS-MAC) and filter bank multicarrier MAC (FBMC-MAC) - along with simulation results comparing their performance to legacy systems like LTE and WiFi. The conclusions indicate both MAC designs outperform existing technologies but DCS-MAC is generally better for licensed bands while FBMC-MAC is more suitable for unlicensed bands due to its listen-before-talk approach.
Speed5G Workshop London presentation of the Speed5G project approach and achi...Klaus Moessner
The document provides an overview of the SPEED-5G project, which aims to develop enhanced dynamic spectrum access (eDSA) as an enabler for 5G performance metrics like 100x more connections and 1000x more capacity. The project involves designing new flexible MACs and a hierarchical radio resource management framework. It also defines eDSA and details two new MAC protocols (DCS-MAC and FBMC-MAC) and the MAC/RRM framework. System simulations showed the new MACs significantly increase area spectral efficiency over WiFi and LTE. The project achieved its goals of developing an eDSA framework and validating novel MACs and RRM algorithms through proofs-of-concept.
This presentation provides a primer in current 100G technology developments, with a focus on the two market available 100G transport approaches: multicarrier direct detection and single carrier coherent. Additionally, different application scenarios with hybrid 10G/100G and multiple 100G transmissions are discussed elucidating fiber impairments and compensation techniques.
Trabalho de apresentação sobre redes veiculares, em especial VANETs. Redes sem-fio são muito estudadas hoje e as redes veiculares ad-hoc prometem impactar bastante.
CommTech Talks: Elastic Optical Devices for Software Defined Optical NetworksAntonio Capone
Elastic optical networks allow network capacity to be increased at lower cost by adapting to traffic variations. Coherent optical technology enables flexible modulation formats and bandwidth usage. Elastic networks can dynamically adjust bandwidth, bit rate, and modulation based on connection properties and network conditions. This provides increased sharing of network resources and cost savings versus legacy fixed-grid networks. However, elastic network design and management poses challenges around impairment-aware routing and spectrum allocation.
I great privilege to end Ampleon Technical Conference 2021 (Nijmegen, Netherlands) with a keynote contribution on what makes Telco tick and more on what to expect from real 5G. It was as well more than 20 years since I had seen many of my old Philips colleagues (now Ampleon) which made this event very special for me as well. Of course, also super cool to see the innovation level and relevance to our deployed RAN infrastructure.
This document discusses next-generation reconfigurable optical add-drop multiplexers (NG ROADMs). It outlines the functionality requirements of NG ROADMs, including being colorless, directionless, contentionless, and gridless. It describes the technology building blocks that enable these features, such as wavelength selective switches (WSS). The document also discusses the benefits of NG ROADMs, such as increased flexibility, automatic restoration, and support for higher data rates. It concludes that NG ROADM technology prepares networks to meet current and future traffic needs.
Rate and Performance Analysis of Indoor Optical Camera Communications in Opti...Willy Anugrah Cahyadi
This document presents a dissertation written by Willy Anugrah Cahyadi for the degree of Doctor of Philosophy at Pukyong National University in November 2018. The dissertation focuses on improving the data rate and performance of optical camera communications (OCC) by investigating downlink and proposing uplink solutions. Key contributions include achieving a downlink rate of 11,520 bits/s using a split-frame technique and a rate of over 2 Mbits/s using high-density modulation with a neural network. An uplink scheme using a smartphone display is also presented achieving an effective data rate of 360 bits/s. The aim is to address critical limitations of OCC and provide complementary solutions within the standardized use cases.
Here are the key points about GPRS main concepts:
- GPRS uses packet switching rather than circuit switching, allowing variable bit rates rather than a fixed 9.6 kbps rate.
- Radio resources are shared statistically between users through dynamic allocation of timeslots. This allows optimization of resource usage.
- Variable coding schemes allow bit rates from 9 kbps up to over 150 kbps depending on radio conditions and number of timeslots allocated.
- Resources are only used when data is being sent, through the establishment of temporary block flows (TBFs).
- One timeslot can be shared by multiple MSs through time multiplexing controlled by the BSS.
- The transmission rate per radio resource is variable depending on channel quality
WAVE and 802.11p models evaluation in NS3 simulation environmentYaroslav Domaratsky
802.11p models in NS3 simulation environment and we realized in general both WAVE and plain 802.11p models models work well. Our current results described in the presentation
Update from 22 Mar 2017: slide #10 added to describe problem we discovered in fixed in WAVE protocol model.
This document summarizes an IMT-Advanced evaluation meeting held in Beijing, China on December 17-18, 2009 regarding LTE RAN architecture aspects. Dino Flore of Qualcomm Inc., the RAN WG3 Chairman, presented on topics including the EPS architecture, E-UTRAN architecture, functional split between network nodes, EPS bearer service architecture and QoS model, inter-cell interference control, and support for features like HeNB/CSG operation, SON, positioning, and E-MBMS.
Mobdiea lte overview_2nd_marketing_2014_0423_최종Kevin Kang
The document discusses LTE carrier aggregation technology. It describes Qualcomm's LTE carrier aggregation test projects in South Korea with various mobile device manufacturers. It also outlines Ericsson's LTE optimization projects with telecom operators in Saudi Arabia and South Korea. Finally, it provides background information on 3GPP LTE release 10 and release 11 specifications related to carrier aggregation configurations and bandwidth classifications.
Fronthaul technologies kwang_submit_to_slideshareKwangkoog Lee
5G Fronthaul Technologies (Especially, this document specifies the e-CPRI technology, because many telcos are now considering the eCPRI for the next fronthaul.)
5G Peak Complexity (and how to make it simpler).
Presented by Dan Warren, Head of Network Standards & Research, Samsung at Cambridge Wireless (CW), enhanced Mobile Broadband (eMBB) SIG event on 28 Nov 2019 - https://www.cambridgewireless.co.uk/events/automation-essential-5g/
*** SHARED WITH PERMISSION ***
3GPP RAN plenary meeting #84 in Newport Beach, US, in June 2019, discussed the content of 5G New Radio (5G-NR) Release 17 standardization. One of the defined key areas for 5G enhancements for 5G enhancements is NR Broadcast / Multicast (BC/MC). Important use cases for this technology are NR Vehicle-to-Everything (V2X), NR Public Safety and NR Non-Terrestrial Networks (NTN). This white paper proposes a mechanism of link adaptation in coordination with higher layer Error Correction. A detailed description and system-level simulation-based evaluation of the proposed scheme is provided in this White Paper.
Data center trends_from_telco_perspectives_kwangkoog_submitKwangkoog Lee
This slide introduces the trends of data centers of telecommunication companies. Especially, it explains why current enterprise connections are towards many data centers. Accordingly, it shows that current telcos are preparing data center interconnect (DCI) technology. Additionally, the slide introduces the KT approach for the DCI service.
Emerging Trends and Applications for Cost Effective ROADMsCPqD
The document discusses emerging trends and applications for reconfigurable optical add-drop multiplexers (ROADMs) and wavelength selective switches (WSS). It notes that higher port count WSS are the fastest growing area to support applications like data centers, wireless backhaul, and utilities networks. The document summarizes the evolution of ROADM technology over generations from 1998 to present. It then outlines various ROADM architectures including multi-degree colorless and directionless designs using dual WSS or high port count WSS. These emerging technologies allow more flexible and efficient optical networking to support bandwidths from 10G to 400G and beyond for 5G, SDN/NFV applications and network virtualization.
LTE Release 13 and SMARTER – Road Towards 5GYi-Hsueh Tsai
3GPP Overview
TSG Plenary Status
RAN workshop on 5G
SA1 5G SMARTER
Radio Interface Technology definition
Time Delay analysis
Four New Building Block Study Items for 5G
Enhanced Mobile Broadband
Massive Internet of Things
Critical Machine Communications (ultra-reliable and low latency)
Network operation (including Migration and Interworking)
Capabilities of Future IMT systems
Conclusions
This presentation and demo show the hardware which consist of 5G UE’s, 5G radios, a fronthaul network and C-RAN with high density switches and servers, a transport network of 3 DWDM switches and a DC network of servers and high density switches. The basic software arrangement will be shown with emphasis on the structure of the orchestration and SDN controllers and the choice of virtualization components and logical networking. An eMBB slice will be brought up which will entail programming of the radios, the fronthaul, backhaul, a node B and the core. Its behavior will be noted through the test UE’s. An URRLC slice will be brought up and its nodeB and core will be demonstrated through its test UE’s showing extremely low latency. An MMTC slice will be brought up and a large number of test IOT devices will be demonstrated via the test UE’s. The eMBB slice will be augmented by programming a slice selection function that will create a ICN slice and an application (TBD) will be shown running over that ICN core (but with the eMBB slice). Spectrum will be reassigned from slice to slice and the changes noted as an optimizer recomputes the proper allocation of resources and executes it. Traffic will be increased and the changes in the backhaul over transport and core function placements will be noted. An additional demonstration will show creation of multiple 4G air interfaces using the same infrastructure network but with 4G radios and 4G UE’s using OAI software and ETTUS SDRs. A Skype session will be created between the two 4G slices. We will also try to show some of the EPC functions being moved while the UE sessions are not impacted.
Author : Peter Ashwood-Smith, Huawei Technologies
Presented at ITU-T Focus Group IMT-2020 Workshop and Demo Day, 7 December 2016.
More details on the event : http://www.itu.int/en/ITU-T/Workshops-and-Seminars/201612/Pages/Programme.aspx
5G Transport Network Requirement for Indian Telecom By Subrata SenSukhvinder Singh Malik
There are few people whom we meet and connect instantly. Recently, We met Subrata Sen, (Head, Fiber/Transport Planning at Bharti Infratel Ltd) and veteran in telecom industry during a conference. During our conversation, we had long discussion about upcoming technologies and how important the backhaul , specially fiber is for future network.
For example, if we wish to move our telco infrastructure to Cloud, virtualize our network elements, do we have the capability to move all data traffic to centralized cloud? Mr. Sen provided his expert opinion on how the transport network needs to be redesigned and what are important parameters for the same.
Control Plane for High Capacity Networks PublicCPqD
This document discusses network programmability and SDN for transport networks. It motivates network programmability to allow dynamic network adaptation, faster service delivery, and integration of NFV. It describes SDN for transport networks including a multilayer SDN orchestration approach to automate provisioning across domains. It also summarizes Telefonica's activities applying SDN to transport networks through trials and proofs-of-concept including a multi-vendor OFC 2016 demo.
Speed5G Workshop London presentation of the Speed5G MAC frameworkKlaus Moessner
The document summarizes innovations to the medium access control (MAC) layer from the SPEED-5G project to support enhanced dynamic spectrum aggregation (eDSA). It describes a MAC framework to coordinate scheduling across radio access technologies at the MAC level. It also presents two novel MAC designs - the dynamic channel selection MAC (DCS-MAC) and filter bank multicarrier MAC (FBMC-MAC) - along with simulation results comparing their performance to legacy systems like LTE and WiFi. The conclusions indicate both MAC designs outperform existing technologies but DCS-MAC is generally better for licensed bands while FBMC-MAC is more suitable for unlicensed bands due to its listen-before-talk approach.
Speed5G Workshop London presentation of the Speed5G project approach and achi...Klaus Moessner
The document provides an overview of the SPEED-5G project, which aims to develop enhanced dynamic spectrum access (eDSA) as an enabler for 5G performance metrics like 100x more connections and 1000x more capacity. The project involves designing new flexible MACs and a hierarchical radio resource management framework. It also defines eDSA and details two new MAC protocols (DCS-MAC and FBMC-MAC) and the MAC/RRM framework. System simulations showed the new MACs significantly increase area spectral efficiency over WiFi and LTE. The project achieved its goals of developing an eDSA framework and validating novel MACs and RRM algorithms through proofs-of-concept.
This presentation provides a primer in current 100G technology developments, with a focus on the two market available 100G transport approaches: multicarrier direct detection and single carrier coherent. Additionally, different application scenarios with hybrid 10G/100G and multiple 100G transmissions are discussed elucidating fiber impairments and compensation techniques.
Trabalho de apresentação sobre redes veiculares, em especial VANETs. Redes sem-fio são muito estudadas hoje e as redes veiculares ad-hoc prometem impactar bastante.
The “Telematics Horizon” V2V and V2I NetworkingAlison Chaiken
This document summarizes a presentation on vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) networking given by Alison Chaiken. The presentation introduced V2V and V2I technologies, discussed recent pilots of these systems including Safety Pilot and simTD, and examined hardware, protocols, and standards involved. It concluded that government and automaker commitment to V2V/V2I is growing based on pilot results and an anticipated US decision later this year could raise further awareness.
EBU DRW 2011 - CRC-mmbTools - Software Radio WorkshopPascal Charest
The document provides an overview of the CRC-mmbTools software suite for digital radio broadcasting. It discusses:
1. The CRC-mmbTools live CD and website, which contain various open-source tools for DAB/DAB+ broadcasting.
2. How to use the major tools - CRC-OpenMokast, CRC-DabMod, CRC-Dwap, and CRC-DabMux - including examples of basic and complex configurations.
3. How the tools support different types of service encoding for audio and multimedia content.
4. An overview of how the tools can be used for other modulations like FM and DRM broadcasting in addition to DAB
Internal CRC presentation about Mobile Multimedia Broadcasting team projects. Mostly based on www.slideshare.net/fralef and www.slideshare.net/roykilo presentations.
The document describes the design of a mobile satellite communication station. The station will allow a university's satellite lab to communicate with satellites from different locations as they move, increasing contact time. It will include a motorized 2.4m S-band antenna, software defined radio, and auto-calibration system to account for the vehicle's movement. The goal is to design a highly mobile station that can operate satellites, record passes, and accommodate multiple satellites simultaneously.
The document describes several labs demonstrating FM-RDS transmission and reception, RadioDNS applications testing, online ETI creation and playback, ETI modulation and transmission over DAB, offline and live DAB slideshows, offline DAB multiplexing, DAB+ encoding, audio processing with DAB+ encoding, and dual radio transmission over DAB and FM using USRP equipment and open source software tools from CRC.
This paper clarifies the standards defined around LTE network security by standard development organizations including 3GPP, ITU, ETSI, and industry group NGMN. It also examines the different security borders of the mobile network, and delves deeper into the requirements of the Mobile Access Border - the border between the RAN and the core (S1).
The document provides an overview of LTE networks and outlines potential security testing approaches. It describes the components of LTE networks including eNodeBs, MMEs, and gateways. The document discusses protocols like S1AP, GTP, and potential attacks such as spoofing signaling or manipulating encapsulated user data. It recommends testing key controls enforced by the gateway, IPSec implementation, and network routing/filtering to evaluate the security of LTE networks.
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Software Defined Radio Engineering course samplerJim Jenkins
This 3-day course is designed for digital signal processing engineers, RF system engineers, and managers who wish to enhance their understanding of this rapidly emerging technology. Most topics include carefully described design analysis, alternative approaches, performance analysis, and references to published research results. Many topics are illustrated by Matlab simulation demos. An extensive bibliography is included.
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Software-defined radio (SDR) technology enables
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if consider the proliferation of wireless standards. To enable such functionality SDR is using reconfigurable hardware platform such as Field Programmable Gate Array (FPGA). In this paper, we present design procedure and implementation result of SDR based QPSK modulator on Altera Cyclone IV FPGA. For design and implementation of QPSK modulator we used Altera DSP
Builder Tool combined with Matlab/Simulink, Modelsim and
Quartus II design tools. As reconfigurable hardware platform
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AD/DA daughter card. Software and Hardware-in-the-loop (HIL)
simulation was conducted before hardware implementation and
verification of designed system. This method of design makes
implementation of SDR based modulators simpler ad faster.
Index Terms—SDR, FPGA, QPSK, DSP Builder, NCO, RRC
This document presents a study evaluating the performance of a COFDM system for providing fixed broadband wireless access using high-altitude platform stations (HAPS). It first provides background on HAPS systems and proposes using COFDM to provide robust high-capacity transmissions over the stratospheric HAPS channel. It then describes modeling the HAPS channel and simulating a COFDM system, varying modulation schemes, coding rates, bandwidth and guard intervals. Results show increasing performance degradation with higher bit rates, larger bandwidth and higher modulation schemes, as well as with smaller guard intervals.
This document describes M-Cube, a millimeter-wave massive MIMO software radio platform developed by researchers at UC San Diego. The platform features a flexible data path that can interface with software-defined radios or GHz baseband converters. It also has a real-time control path with sub-microsecond latency enabling fast beam sweeping. The beam patterns are reconfigurable. The platform is built by restructuring a commodity 802.11ad radio, making it low cost and suitable for real world testing. It supports massive MIMO with up to 8 RF chains and a total of 256 antenna elements. The platform is open source and available to the research community.
The document discusses how MATLAB and NI tools can be used together to optimize wireless system design processes. It describes how they allow designing, analyzing, and testing of wireless standards, applying AI techniques to wireless applications, jointly optimizing digital, RF, and antenna components, implementing designs on hardware, simulating radar applications, and providing hands-on learning resources. Specific examples discussed include 5G design at Qualcomm, linearization algorithm development at NanoSemi, and teaching wireless communications with USRPs.
Implementation of Algorithms For Multi-Channel Digital Monitoring ReceiverIOSR Journals
Abstract: Monitoring Receivers form an important constituent of the Electronic support. In Monitoring
Receiver we can monitor, demodulate or scan the multiple channels.
In this project, the Implementation of algorithm for multi channel digital monitoring receiver. The
implementation will carry out the channelization by the way of Digital down Converters (DDCs) and Digital
Base band Demodulation. The Intermediate Frequency (IF) at 10.7 MHz will be digitalized using Analog to
Digital Converter (ADC) with sampling frequency 52.5 MHz and further converted to Base band using DDCs.
Virtually all the digital receivers perform channel access using a DDC. The Base band data will be streamed to
the appropriate demodulators. Matlab Simulink will be used to simulate the logic modules before the
implementation. This system will be prototyped on an FPGA based COTS (Commercial-off-the-shelf)
development board. Xilinx System Generator will be used for the implementation of the algorithms.
Keywords: DDC, ADC, Digital Base band demodulation, IF, Monitoring Receiver.
3GPP submitted 5G technology developed by 3GPP (Release 15 and beyond) as a candidate for IMT-2020. This included NR standalone and in combination with LTE. 3GPP provided self-evaluation results for NR and LTE in various test environments, demonstrating compliance with IMT-2020 performance requirements for eMBB, URLLC, and mMTC. Key 5G technologies developed by 3GPP that enable the IMT-2020 capabilities include flexible spectrum usage, frame structure, and deployments using massive MIMO, as well as enhancements to LTE.
This document discusses using GNU Radio for space research applications. It describes hardware-defined versus software-defined radios and commercially available SDRs. GNU Radio is introduced as free and open-source software that can be used with an SDR to create signal processing applications through a graphical interface. Examples are given of using GNU Radio for ground-satellite applications like receiving weather satellite images. The document also describes a federated satellite systems approach and a prototype FSS negotiator using GNU Radio. An experimental MONSTER project is outlined that used GNU Radio on a Raspberry Pi to transmit and receive data between high-altitude balloons.
analysis on design and implementation of 4×10 gb s wdm tdm pon with disparate...INFOGAIN PUBLICATION
This document summarizes a research paper that analyzed the design and implementation of a 4×10 Gb/s WDM-TDM passive optical network (PON) with different receiver photodiodes. The PON was tested over varying link distances from 40km to 100km using 4 wavelengths to support a maximum of 32 users. Bit error rate (BER) and Q-factor were analyzed and found to decrease with increased distance. BER values were lower for an avalanche photodiode (APD) receiver compared to a PIN receiver. The optimal BER was obtained at 97km for APD and 96km for PIN receivers. Graphs showed BER decreased and Q-factor decreased with increased distance for
The document presents research on using LTE-Advanced (LTE-A) for multicasting high-quality video to vehicles moving at high speeds. A cross-layer simulator was developed to evaluate the performance of spatial multiplexing MIMO and systematic raptor codes. Results show that using raptor codes can provide up to 4dB SNR improvement to achieve low packet error rates in highly correlated channels. Spatial multiplexing combined with raptor codes outperforms space-time block coding and can increase transmission efficiency in lower correlated channels. A link adaptation system is proposed that selects the optimal modulation and coding scheme based on SNR and channel correlation to meet quality of service requirements.
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This document presents a master's thesis on the design and implementation of a multilayer microstrip log periodic dipole antenna. It includes sections on introduction, literature review, problem identification, performance evaluation, proposed methodology, results and discussion, and conclusions. The literature review analyzes several previous research papers on log periodic dipole antennas. The proposed methodology section outlines the design process, including mathematical modeling, simulation software, and fabrication. The results section presents the antenna geometry and performance metrics for two proposed multilayer designs using different materials. Both designs achieved improved bandwidth and return loss compared to previous designs. The conclusion discusses achieving further enhancement of antenna parameters through new multilayer configurations and materials.
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On Prototyping IEEE 802.11p Channel Estimators in Real-World Environments using GNURadio
1. On Prototyping IEEE802.11p Channel
Estimators in Real-World Environments
Using GNURadio
Razvan-Andrei Stoica, Stefano Severi, Giuseppe Abreu
r.stoica@jacobs-university.de
Focus Area Mobility - Jacobs University Bremen (GERMANY)
June 19, 2016
2. Vehicular Ad-hoc Networks in ITS
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3. Wireless Channel in VANETs: Relevance
ITS Applications require robust wireless communications.
⇓
Knowledge of the wireless channel is fundamental!
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4. Wireless Channel in VANETs: Relevance
ITS Applications require robust wireless communications.
⇓
Knowledge of the wireless channel is fundamental!
⇓
Ranging may be refined and improved using Channel
State Information (CSI).
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 4/1
5. Wireless Channel in VANETs: Characteristics
Vehicular WiFi [2] ↔ IEEE 802.11p [3].
Key Challenges:
Non-stationary channel distributions,
Short coherence times,
Short / medium link availability,
Frequency selective channels,
Fast fading and shadowing.
[2] ETSI EN 302 665 V1.1.1, European Standard (Telecommunications series): Intelligent Transport Systems (ITS); Communications Architecture, September 2010.
[3] IEEE Std. 802.11p-2010: “IEEE Standard for Information Technology - Telecommunications and Information Exchange Between Systems - Local and Metropolitan
Area Networks - Specific Requirements, Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications, Amendment 6: Wireless
Access in Vehicular Environments” , July 2010.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 5/1
6. Proposal Overview
Objective
Design a new practical channel estimation scheme and
prototype its real-world deployment with Software Defined
Radio (SDR).
Strategy
Implement the SOF algorithm[4] in GNURadio and
contribute to an open-source community of engineers and
enthusiats.
[4] R. A. Stoica, S. Severi, and G. T. F. de Abreu, “Learning the vehicular channel through the self-organization of frequencies,” in Vehicular Networking Conference
(VNC), 2015 IEEE, Dec 2015, pp. 68-75.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 6/1
7. GNURadio in a Nutshell
What is it?
Open-source community driven framework for SDRs[5].
“Linux” for Software Defined Radios and Digital Signal
Processing.
[5] GNU Radio Website, accessed June 2016. [Online]. Available at: http://www.gnuradio.org
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 7/1
8. GNURadio in a Nutshell
Why use GNURadio?
open-source and free
large tutorial pool and thorough documentation
flowchart based modeling
many signal processing blocks implementated by default
C++ / Python based block programming
rapid prototyping through software
modular packaging of custom solutions
easy blocks and code reuse
SDR hardware prices go down
hardware reuse for different projects
[5] GNU Radio Website, accessed June 2016. [Online]. Available at: http://www.gnuradio.org
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 8/1
9. GNURadio IEEE 802.11p Rx Prototyping
How to use GNURadio in given context?
Start from existent module of IEEE 801.11p transceiver
[6],[7], integrate and test researched channel estimation
solution on the Rx side.
[6] B. Bloessl, M. Segata, C. Sommer, and F. Dressler, “Towards an open source IEEE 802.11p stack: A full SDR-based transceiver in GNURadio,” in Vehicular
Networking Conference (VNC), 2013 IEEE, Dec 2013, pp. 143-149.
[7] B. Bloessl, gr-ieee802-11 GNURadio module, accessed June 2016. [Online]. Available at: https://github.com/bastibl/gr-ieee802-11.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 9/1
10. GNURadio IEEE 802.11p Rx Prototyping
How to use GNURadio in given context?
Start from existent module of IEEE 801.11p transceiver
[6],[7], integrate and test researched channel estimation
solution on the Rx side.
[6] B. Bloessl, M. Segata, C. Sommer, and F. Dressler, “Towards an open source IEEE 802.11p stack: A full SDR-based transceiver in GNURadio,” in Vehicular
Networking Conference (VNC), 2013 IEEE, Dec 2013, pp. 143-149.
[7] B. Bloessl, gr-ieee802-11 GNURadio module, accessed June 2016. [Online]. Available at: https://github.com/bastibl/gr-ieee802-11.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 10/1
11. The SOF Algorithm - Overview
What is the SOF ?
Improved channel estimator compliant with IEEE 802.11p
OFDM PHY specifications and packet format [3].
Why use SOF ?
Superior performance than typical LS estimation and SotA
sequential schemes (e.g. STA [8], CDP [9]) and lower
complexity and latency than iterative schemes (e.g.
soft-input soft-output turbo decoder [10]) [4].
[8] J. A. Fernandez, K. Borries, L. Cheng, B. Vijaya Kumar, D. D. Stancil, and F. Bai, “Performance of the 802.11p physical layer in vehicle-to-vehicle environments,”
Vehicular Technology, IEEE Transactions on, vol. 61, no. 1, pp. 3-14, 2012.
[9] Z. Zhao, X. Cheng, M. Wen, L. Yang, and B. Jiao, “Constructed Data Pilot-Assisted Channel Estimators for Mobile Environments,” IEEE Transactions on Intelligent
Transportation Systems, vol. 16, no. 2, pp. 947–957, April 2015.
[10] P. Alexander, D. Haley, and A. Grant, “Cooperative intelligent transport systems: 5.9-ghz field trials,” Proceedings of the IEEE, vol. 99, no. 7, pp. 1213-1235, July
2011.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 11/1
12. The SOF Algorithm - How does it work ?
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 12/1
13. The SOF Algorithm - Practical Amendments
Prototyping with GNURadio revealed two “issues”:
high SNR performance improvement possible by adaptive
MA filtering
constellation drifting due to sequential estimation and low
resolution comb pilots
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14. The SOF Algorithm - Practical Amendments
MA Adaptive Filtering Optimization
Problem
MA filtering refines LS estimates for low and medium
SNRs, but decays performance in high SNR regimes.
Solution
Linearly adapt the MA filtering window. Use a wide
window (max. 11 taps) for low SNRs and decrease the
width up to just one tap (no filtering) for high SNRs.
Adapt filtering window by thresholding — up to 30 dB allow
MA and then turn it off upon results in [4].
σ(ˆρ)=
2.79, ˆρ ≤ 0 dB
−2.33
30 ˆρ + 2.79, ˆρ ∈ (0, 30] dB
0.46, ˆρ > 30 dB
. (1)
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15. The SOF Algorithm - Practical Amendments
Constellation Drifting Fix
Problem
IEEE 802.11p comb pilots cannot lock and correct the
phase offset of the symbols constellation → errors.
Solution
Correlate previous CFR estimate with current one to
estimate and correct the phase offset.
ˆφcorr(i) = ∠
Nsc−1
k=0
ˆHSOF,i(k) ˆH∗
SOF,i−1(k)
Nsc · | Nsc−1
k=0
ˆHSOF,i(k) ˆH∗
SOF,i−1(k)|
, (2)
ˆHcorr
SOF,i(k) ˆHSOF,i(k) · exp(−j ˆφcorr(i)). (3)
Works due to initial training block → fixed reference locked.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 15/1
16. The SOF Algorithm - Pseudocode
1: Compute initial LS estimate from training symbols: ˆH0
2: Estimate SNR: ˆρ
3: Compute filter window: MA(·)
4: Filter initial estimate: ˆHSOF,0 = MA( ˆH0)
5: for symbol i = 1 to F do
6: Get OFDM symbol estimate: ˆXi = Yi/ ˆHSOF,i−1
7: Equalize OFDM Tx symbol: ˆXTX,i −→ ˆXi
8: Estimate current symbol SNR: ˆρ
9: Compute filter window: MA(·)
10: Filter intermediate estimate: ˜Hi = MA( ˆHi)
11: Update SOF channel estimate:
ˆHSOF,i = ˆHSOF,i−1 + γ( ˜Hi − ˆHSOF,i−1)
12: Correct phase rotation:
ˆφcorr(i), ˆHSOF,i ← ˆHSOF,i · exp(−j ˆφcorr(i))
13: end for
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 16/1
17. Testing the Implementation
Strategy
Perform unit tests and system tests.
unit tests ↔ loopback Tx-Rx chain targeting channel
estimation algorithms.
system tests ↔ real-world Tx-Rx communication focusing
on packet delivery and general operation.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 17/1
18. Unit Testing
loopback GNURadio interfaces (does not require RF HW);
builds on top of IEEE 802.11p transceiver [7];
similar to MATLAB simulations;
computes FER at different SNRs on emulated channels;
implements 2 vehicular channels [11].
Channel v[km/h] Doppler [Hz] Max. τs[µs]
V2V
express-way
oncoming
300-400 m
210 1000-1200 0.3
V2I
urban canyon
100 m
32-48 300 0.5
[11] G. Acosta-Marum and M. A. Ingram, “Six Time-and Frequency-selective empirical channel models for vehicular wireless LANs,” Vehicular Technology Magazine,
IEEE, vol. 2, no. 4, pp. 4-11, 2007.
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19. Performance Evaluation - FER 100B PSDU
V2V(top), V2I(bottom) @ QPSK 1/2
0 5 10 15 20 25 30 35
10
−2
10
−1
10
0
Es/N0 dB
FER
LS
CDP
SOF
0 5 10 15 20 25 30 35
10
−2
10
−1
10
0
Es/N0 dB
FER
LS
CDP
SOF
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 19/1
20. Performance Evaluation - FER 300B PSDU
V2V(top), V2I(bottom) @ QPSK 1/2
0 5 10 15 20 25 30 35
10
−2
10
−1
10
0
Es/N0 dB
FER
LS
CDP
SOF
0 5 10 15 20 25 30 35
10
−2
10
−1
10
0
Es/N0 dB
FER
LS
CDP
SOF
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 20/1
21. System Testing
runs real-time communication (requires RF HW [12],[13]);
uses implemented IEEE 802.11p Rx;
computes FER based on short-term statistics;
displays results in real-time GUI for evaluation and debug;
tested only indoor (for the moment).
[11] Cohda Wireless, accessed June 2016. [Online]. Available at: http://cohdawireless.com/Portals/0/MK5_OBU_10122015.pdf
[12] Ettus Research, accessed June 2016. [Online]. Available at:
https://www.ettus.com/content/files/07495_Ettus_N200-210_DS_Flyer_HR_1.pdf.
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 21/1
22. Performance Evaluation - Indoor Testing
Real-Time OFDM Equalized Symbol Snapshot
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 22/1
23. Conclusions and Future Work
Take Home Points
SDRs: future of modular multi-purpose radio design
GNURadio: easy-to-use “Linux” of SDRs
CSI Knowledge: key of robust communication and ranging
SOF: IEEE 802.11 p(/a/g)-compliant, performant and
low-complexity channel estimation algorithm
Next Steps
SOF Optimization: antenna diversity and
deparameterization by channel correlations
Field Trials: setup outdoor V2X test framework of SDR vs.
reference devices (e.g. Cohda Mk5)
CCP-IV 16 IEEE802.11p Channel Estimators Prototyping with GNURadio June 19, 2016 23/1