This document summarizes the work being done by CPqD towards developing terabit optical networks. It discusses:
1. The evolution of optical transmission rates from 100G to 400G and 1T using technologies like coherent transmission, higher order modulation formats, and carrier aggregation.
2. Advances in optical networking components like amplifiers, ROADMs, and integrated photonics to enable network control and monitoring.
3. Microelectronic developments like high-speed DACs and ASIC DSPs to support coherent transmission systems.
4. Experimental demonstrations and field trials of terabit superchannels using techniques like CO-OFDM, carrier aggregation, and flexible transmitters.
Presentation of the paper "AN IMPLEMENTATION OF SOFTWARE DEFINED RADIOS FOR FEDERATED AEROSPACE NETWORKS" at the 8th International Workshop on Satellite Constellations and Formation Flying, 8 - 10 June, TUD, Delft
Gigalight Solutions for 5G Optical NetworkGigalight
Gigalight provides a series of optical transceivers and passive xWDM modules for 5G fronthaul and middlehaul/backhaul network. The industrial fronthaul transceivers include 10G SFP+ and 25G SFP28 form factors, while the middlehaul/backhaul transceivers include 100G QSFP28 and 200G QSFP56 form factors. Gigalight offers the world's first 5G OMUX passive modules suitable for LWDM and DWDM systems.
Learn More:
https://www.gigalight.com/5g-fronthaul-optical-transceivers.html
https://www.gigalight.com/5g-middlehaul-backhaul-optical-transceivers.html
https://www.gigalight.com/5g-omux.html
PHYSICAL LAYER for DIGITAL TELEVISION ATSC 3.0 STANDARD based on SC – FDMA .Roman M. Vitenberg
Described a proposition for Physical Layer of Next generation broadcast television (NGBT) and ATSC 3.0 Television standard. The Proposed system is back compatible with existing ATSC standards A/53, A/153 and based on improved version of SC-FDMA modulation.
Boosting the Performance of Nested Spatial Mapping with Unequal Modulation in...Ealwan Lee
Presented at ICTC2018(9th International Conference on Information and Communication Technology Convergence)
Date : Oct 18, 2018
Place : Jeju, Korea
DOI) 10.1109/ICTC.2018.8539461
URL) https://ieeexplore.ieee.org/document/8539461
[ URL of the paper/preprint ]
https://www.researchgate.net/publication/328364760_Boosting_the_Performance_of_Nested_Spatial_Mapping_with_Unequal_Modulation_in_80211n
[ Prior works of Nested Spatial Mapping without Unequal Modulation(UEQM) ]
https://www.slideshare.net/ealwanlee/nested-mimo-lectures-in-2017-seoul
[ List of the articles related with this slide ]
https://www.linkedin.com/pulse/list-articles-nested-spatial-mapping-wlan80211n-ealwan-lee/
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.
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
Presentation of the paper "AN IMPLEMENTATION OF SOFTWARE DEFINED RADIOS FOR FEDERATED AEROSPACE NETWORKS" at the 8th International Workshop on Satellite Constellations and Formation Flying, 8 - 10 June, TUD, Delft
Gigalight Solutions for 5G Optical NetworkGigalight
Gigalight provides a series of optical transceivers and passive xWDM modules for 5G fronthaul and middlehaul/backhaul network. The industrial fronthaul transceivers include 10G SFP+ and 25G SFP28 form factors, while the middlehaul/backhaul transceivers include 100G QSFP28 and 200G QSFP56 form factors. Gigalight offers the world's first 5G OMUX passive modules suitable for LWDM and DWDM systems.
Learn More:
https://www.gigalight.com/5g-fronthaul-optical-transceivers.html
https://www.gigalight.com/5g-middlehaul-backhaul-optical-transceivers.html
https://www.gigalight.com/5g-omux.html
PHYSICAL LAYER for DIGITAL TELEVISION ATSC 3.0 STANDARD based on SC – FDMA .Roman M. Vitenberg
Described a proposition for Physical Layer of Next generation broadcast television (NGBT) and ATSC 3.0 Television standard. The Proposed system is back compatible with existing ATSC standards A/53, A/153 and based on improved version of SC-FDMA modulation.
Boosting the Performance of Nested Spatial Mapping with Unequal Modulation in...Ealwan Lee
Presented at ICTC2018(9th International Conference on Information and Communication Technology Convergence)
Date : Oct 18, 2018
Place : Jeju, Korea
DOI) 10.1109/ICTC.2018.8539461
URL) https://ieeexplore.ieee.org/document/8539461
[ URL of the paper/preprint ]
https://www.researchgate.net/publication/328364760_Boosting_the_Performance_of_Nested_Spatial_Mapping_with_Unequal_Modulation_in_80211n
[ Prior works of Nested Spatial Mapping without Unequal Modulation(UEQM) ]
https://www.slideshare.net/ealwanlee/nested-mimo-lectures-in-2017-seoul
[ List of the articles related with this slide ]
https://www.linkedin.com/pulse/list-articles-nested-spatial-mapping-wlan80211n-ealwan-lee/
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.
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
Presented virtually by Andy Sutton, Principal Network Architect, BT Technology on 06 Aug 2020.
Andy provides an update and review of the transformational plans, capabilities and outcomes from 5G deployments in the UK. 5G networks are already enabling a step change in the range and capability of innovative applications from IoT to robotics. That pace of change is due to accelerate as 5G moves from its initial enhanced mobile broadband phase to deliver ultra-reliable and low latency communications along with massive machine type connectivity.
*** SHARED WITH PERMISSION ***
We are offering a comprehensive high speed networking solution which is including 3.2T Co-packaged Optic (CPO), 100G, 200G, 400G & 800G transceivers, DACs, AOCs, ACCs & Loopback modules. We are fulfil your research (R&D) stage product development, DVT/EVT pre-product testing, mass production and also for final application use.
Welcome to contact us for more product info.
The final thesis defense presentation for my master's project. The purpose of this thesis was to compare alternative wireless links for transfer of data from sink motes of remote wireless sensor networks to a central repository. A few different protocol stacks to be implemented in the WSN (Wireless Sensor Network) uplink gateway and along with them a few implementation environments based on open source software and low-power hardware were discussed. To facilitate measurements and experimental validation, some of the alternatives have been implemented. Experiments have been made using two of the amateur radio bands, the 144 MHz band (VHF) and the 433 MHz band (UHF). The parameters studied include throughput, range, power-requirements, portability and compatibility with standards.
Using different protocol stacks, different bands and sometimes different hardware 5 solutions were designed, implemented, tested and experimented with. Namely these solutions are called Radiotftp, Radiotftp_process, Radiotunnel, Soundmodem and APRX in this thesis.
After the implementation phase, there was an open-field experimentation to measure the aforementioned parameters. The tests were conducted in Riddarholmen, Stockholm of Sweden. These open-field experiments helped us obtain real-life measurements about power, throughput, stability etc. Experiments were conducted in a range of from a minimum of 2 meters to a maximum of 2.1 kilometers with some of the solutions.
In the end, some of these solutions proved themselves to be viable for the purpose of data communications for remote wireless sensor networks. Radiotftp gave the best throughput in both bands where it proved itself to be difficult to develop further applications. Radiotftp_process removed the necessity for a Linux running gateway machine but it was unable to work with faster baud rates. Radiotunnel opened up the path for a range of network applications to use radio links, but it also proved that it was unstable. On the other hand Soundmodem and APRX which were based on standard and open-source software proved that they were stable but rather slow. It was proven that every approach to problem has its advantages and disadvantages from different aspects such as throughput, range, power-requirements, portability and compatibility.
This documents will cover basic LTE principles along with some brief impression about LTE features. Additionally, LTE Link Budget, LTE Coverage & Capacity Planning and Cell Radius calculation methodology have been depicted comprehensively in this document.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
Created out of a necessity for superior performance in Kaggle competitions, Albumentations has grown to become a widely used tool among data scientists and machine learning practitioners.
This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Unlocking Productivity: Leveraging the Potential of Copilot in Microsoft 365, a presentation by Christoforos Vlachos, Senior Solutions Manager – Modern Workplace, Uni Systems
Alt. GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using ...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
DevOps and Testing slides at DASA ConnectKari Kakkonen
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In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
4. 448-Gb/s dual-carrier PDM-16QAM
25GHz
56GHz
112GHz
56GHz
35GHz
25GHz Pre-filtering
35GHz spacing
between the two
carriers
75GHz
Two 50% RZ carriers
Occuping a
112 GHz grid
Two 50% RZ carriers
occuping a 75GHz grid
112GHz
Higher performance, spectral efficiency
and filtering robustness
5. 448-Gb/s dual-carrier PDM-16QAM
Higher performance, spectral efficiency
and filtering robustness
Mux
PRBS
PDM-QPSK Modulator
EDFA 3 dB PBC
PDM Emulator
Pulse
Carver
5x1
Odd
50
km
50
km
50
km
50
km
EDFA EDFA EDFA EDFA
EDFAEDFA
26
km
SW 1
3 dB
SW 2
Pol.
Div.
Hyb.
90°
Orthonormalization
Deskew
PolarizationDemux
CarrierRecovery
Demodulation
Offline DSP
WSS
(e)
LO
ClockRecovery
SCOPE(40-GS/s)
3 dB
Mux
PRBS
PDM-QPSK Modulator
EDFA 3 dB PBC
PDM Emulator
Pulse
Carver
5x1
Even
WaveShaper
CDCompensation
RZ-PDM-16QAM Eye
RZ-16QAM Eye
(b)
Pol. Incidence
angle of 26.5°
(a)
(c) (d)
Modulation Format DP-16QAM
Carriers 2
Baud rate 28 G
SE 5.6 b/s/Hz
Grid 75 GHz
Reach 678 km
6. Optical Superchannel: 1.12-Tb/s
1000 km of
optical fiber!
Features
Baud rate 28 Gb/s
Modulation RZ-PDM-16QAM
Total bit rate 1 Tb/s
Bit rate per carrier 224 Gb/s
Carrier spacing 35 GHz
Spectral Efficiency 6 b/s/Hz
Spectral Occupancy 175 GHz
Reach 1000 km
Feasible application Metropolitan Networks
7. Modulation
Format
Number
Subcarriers
Baud Rate
(Gbaud)
2 4 16
14
28
32
1
2
8
10
100G
28-Gbaud
16QAM
200G 400G
28-Gbaud
16QAM
1T
OFDM has been also investigated…
12.5-Gbaud
QPSK
12.5-Gbaud
16QAM
Tx
Rx
Comb
Gen.
Key-module: Comb Generator
Stable
Equilized-Power
Broadband
8. 450 Gb/s CO-OFDM DP-QPSK (9 carriers)
Comb-generator
After 226km After 2260km After 3840 km
Modulation Format DP-QPSK
Carriers 9
Baud rate 12.5 G
SE ~4 b/s/Hz
Grid 112.5 GHz
Reach 3840 km
9. 400-Gb/s CO-OFDM DP-16QAM (4 carriers)
Feedback – comb generator
Features
Baud rate 12.5 GBd
Modulation PDM-16QAM
Total bit rate 400-Gb/s
Bit rate per carrier 100-Gb/s
Carrier spacing 12.5-GHz
Spectral Efficiency 6.4 b/s/Hz
Spectral Occupancy 62.5-GHz
Reach 450 km
Feasible application Metropolitan Networks
10. Flexible-Transmitter for Terabit applications
3 Carriers Test Features
Feasible
application
Metropolitan
Networks
Long-Haul
Networks
Modulation RZ-PDM-16QAM RZ-PDM-QPSK
Baud rate 28 Gb/s 28 Gb/s
Bit rate per
carrier
224 Gb/s 112 Gb/s
Total bit rate 672 Gb/s 336 Gb/s
Carrier spacing 33.6 GHz 30.8 GHz
Spectral
Efficiency
6.25 b/s/Hz 3.41
Spectral
Occupancy
100.8 GHz 92.4 GHz
Reach 900 km 4900 km
3 Carriers
Transmission
Evaluation
-Quasi-Nyquist spacing
- Upgradable transmitter;
- DSP-Tx free;
- Reach adaptable
25. Adaptive and Cognitive Optical Network Algorithms
Adaptive EDFA (PTL in submission)
• EDFA Noise Figure and Flatness
operation point optimization on-line
Cognitive EDFA without
launch power (LP)
BER ok ?
Cognitive EDFA with
launch power (LP) 1
All BER
ok ?
LP2 = LP1++
END
END
-2 dBm (16-QAM)
0 dBm (CO-OFDM)
2 dBm (16-QAM)
4 dBm (CO-OFDM)
Cognitive EDFA (OFC2013)
• Adaptive EDFA + Channels BER history to
adjust best launch power (error free for att. 6 dB)
Fail
OK
Fail
OK
Fail
OK
Fail
OK
OK
OK
OK
OK
BER
reduction
¹Cog. action transient time
² Attenuation event Occur
With cog.
(new Gains)
Without
cognition
(same gain)¹
²
26. Line card development
Optical Amplifiers
(Optimized)
• EDFA
• Raman Amp.
• Hybrid Amp.
C/L Band
Routing and Monitoring
• PLC and WSS ROADMs;
• Optical Channel Monitoring ;
• CDC Multi-Cast-Switch;
Tech.
Transfer
38. CPqD Strategy – Towards Terabit Optical Netwoks
Design and packaging
coherent linecard critical
components
Cognitive Optical Networks
(GMPLS/SDN, Amps,
ROADMs, Monitoring)
100 Gb/s 200 Gb/s
400 Gb/s1 Tb/s
Coherent transmission
evolution towards NxTb/s
Focus on
INDUSTRY
(Products)
39. Conclusions
- Fast evolution on optical transmission due to coherent, 100G is a reality, 400G will be the
next step and 1T technologies are feasible in lab. right now
- Coherent evolution demands new technological domain (DSP, microelectronics, integrated
photonics) and generates high dependence in transmitters critical components (ASICs,
Mod./Rx), that require massive investments, CPqD with governamental and industry support
are developing this systems and components to enable the growth of national WDM systems
-Optical networks evolution trough Hybrid Amplifiers, ROADMs, Control Plane and
Monitoring are under fast development
- The evolution of optical communications are critical to world wide interconnect and plays a
key social role in any country in the world, this field are under continuous evolution with a
fast established cycle between R&D and market, enabling the broadband evolvution in a
sustainable way!!!!!!