Intra-vehicular wireless sensor networks (IVWSN) is a promising new research area that can provide part cost, assembly, maintenance savings and fuel efficiency through the elimination of the wires, and enable new sensor technologies to be integrated into vehicles, which would otherwise be impossible using wired means, such as Intelligent Tire. However, there are currently no detailed models describing the UWB channel for IVWSN making it difficult to design a suitable communication system. We analyze the small- scale and large-scale statistics of the UWB channel beneath the chassis of a vehicle by collecting data at various locations with 81 measurement points per transmitter-receiver pair for different types of vehicles including the scenarios of turning the engine on and movement on the road. Moreover, the close interaction of communication with control systems, strict reliability, energy efficiency and delay requirements in such harsh environment containing a large number of reflectors operating at extreme temperatures are distinguishing properties of this network. We investigate optimal power control, rate adaptation and scheduling for UWB-based IVWSN for one Electronic Control Unit (ECU) and multiple ECU cases.
Vehicle to Vehicle presentation talks about building a decentralised network between cars on which we can share useful information that could makes our driving easier.
Our thesis statement was
"We aim to Design a framework that functions as a platform to allow developers to build applications on an ad-hoc-vehicle to vehicle network"
This presentation talks about the proposed design to our network.
Vehicle to vehicle Communication Systems (V2V) are an emerging type of networks in which vehicles use a dynamic wireless exchange of data between nearby vehicles providing each other with information, such as safety warnings and traffic information.
Study of Utilising SCM – MIMO Channel Model in V2V CommunicationScott Turner
In the recent year’s vehicular ad hoc networks VANETs
has received significant attention in the intelligent transport
system research. Vehicle-to-vehicle V2V communication can be considered an important approach to help the drivers to satisfy requirements like less congestion, accident warning, road exploration, etc. The propagation issues such as path loss,
multipath fading, shadowing loss, depolarization loss, and
polarization mismatch loss significantly affect the reliability of V2V communication.
The goal of this paper is to evaluate the performance of the
PHY layer in V2V communication using a modified Spatial
Channel Model SCM-MIMO.
Presented at Nets4Cars: 6-8 Oct 2014, Saint Petersburg, Russia.
Talk done at "Communication challenges in
Intelligent Transportation Systems" in
Tel Aviv, January 30, 2008.
This slides provides an overview of the project, its communications requirements and needs and the solution adopted.
This presentation i just published the wireless communication between the vehicle which is going to be a future technology.In this technology communication of vehicle helps to intimate the driver about the startegies of surrounding vehicle......
Vehicle to Vehicle presentation talks about building a decentralised network between cars on which we can share useful information that could makes our driving easier.
Our thesis statement was
"We aim to Design a framework that functions as a platform to allow developers to build applications on an ad-hoc-vehicle to vehicle network"
This presentation talks about the proposed design to our network.
Vehicle to vehicle Communication Systems (V2V) are an emerging type of networks in which vehicles use a dynamic wireless exchange of data between nearby vehicles providing each other with information, such as safety warnings and traffic information.
Study of Utilising SCM – MIMO Channel Model in V2V CommunicationScott Turner
In the recent year’s vehicular ad hoc networks VANETs
has received significant attention in the intelligent transport
system research. Vehicle-to-vehicle V2V communication can be considered an important approach to help the drivers to satisfy requirements like less congestion, accident warning, road exploration, etc. The propagation issues such as path loss,
multipath fading, shadowing loss, depolarization loss, and
polarization mismatch loss significantly affect the reliability of V2V communication.
The goal of this paper is to evaluate the performance of the
PHY layer in V2V communication using a modified Spatial
Channel Model SCM-MIMO.
Presented at Nets4Cars: 6-8 Oct 2014, Saint Petersburg, Russia.
Talk done at "Communication challenges in
Intelligent Transportation Systems" in
Tel Aviv, January 30, 2008.
This slides provides an overview of the project, its communications requirements and needs and the solution adopted.
This presentation i just published the wireless communication between the vehicle which is going to be a future technology.In this technology communication of vehicle helps to intimate the driver about the startegies of surrounding vehicle......
Vehicle-2-Vehicle Communication Based on Wireless Sensor NetworkjournalBEEI
Truck Platooning is a car innovation that permits gathering various trucks into a single element where one truck intently takes after the other that outcomes in an expanded street limit. This kind of detachment allows to a significant degree tight separations and synchronous driving between the vehicles. Our point is to plan and exhibit a self-ruling truck platooning framework given vehicle-to-vehicle (V2V) correspondence innovation. The structure utilises IEEE 802.15.4 remote convention joined with separation going sensors to enable vehicles inside the company to safely trade data progressively and naturally break and quicken in light of the lead truck. The rapid of remote correspondence permits to a significant degree tight separations and synchronous driving between the platooning vehicles.
(Paper) A Method for Sharing Traffic Jam Information using Inter-Vehicle Comm...Naoki Shibata
Shibata, N., Terauchi, T., Kitani, T., Yasumoto, K., Ito, M., Higashino, T.: A Method for Sharing Traffic Jam Information Using Inter-Vehicle Communication, The 2nd International Workshop on Vehicle-to-Vehicle Communications (V2VCOM) (Mobiquitous2006 Workshop), pp. 1-7, DOI:10.1109/MOBIQ.2006.340428 (July 2006) (invited paper).
http://ito-lab.naist.jp/themes/pdffiles/060725.shibata.v2vcom06.pdf
In this paper, we propose a method for cars to autonomously and cooperatively collect traffic jam statistics to estimate arrival time to destination for each car using inter-vehicle communication. In the method, the target geographical region is divided into areas, and each car measures time to pass through each area. Traffic information is collected by exchanging information between cars using inter-vehicle communication. In order to improve accuracy of estimation, we introduce several mechanisms to avoid same data to be repeatedly counted. Since wireless bandwidth usable for exchanging statistics information is limited, the proposed method includes a mechanism to categorize data, and send important data prior to other data. In order to evaluate effectiveness of the proposed method, we implemented the method on a traffic simulator NETSTREAM developed by Toyota Central R&D Labs, conducted some experiments and confirmed that the method achieves practical performance in sharing traffic jam information using inter-vehicle communication.
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
A Synopsis of Simulation and Mobility Modeling in Vehicular Ad-hoc Networks (...IOSR Journals
Abstract : Vehicular communication is considered to be a backbone for many critical safety applications. In
order to achieve a better implementation of any vehicular communication scenario, an efficient, accurate and
reliable simulator is essential. Various open source and commercial simulating tools are available for this
purpose. One of the key issues in this regard is the selection of a reliable simulator which implements all
standard algorithms and paradigms giving accurate results. In this paper, we first present IEEE standard and
protocols for vehicular communication, IEEE 802.11p and IEEE 1609.x, also known as WAVE protocol stack.
The paper then discusses the necessary requirements for a generic discrete event simulator which can be used to
simulate Vehicular Ad-hoc Networks. Since not all the network simulators can be used in the scenario of
vehicular communication, we highlight the key features of some network simulators in the context of vehicular
ad-hoc networks. The paper also highlights some of the implementation limitations in these simulators.
Furthermore, the paper presents a discussion on traffic simulators by emphasizing on the underlying mobility
models used in order to generate the realistic traffic patterns. A comparative study of both network and traffic
simulators show the pros and cons of these simulation tools. The paper suggests the appropriate choice of a
network simulator to be used as a VANET simulator.
Keywords: VANET, IEEE 802.11p, WAVE-PHY, WAVE-MAC, Simulators, Modeling
Edge computing for CAVs and VRU protection Carl Jackson
A partnership between the University of Melbourne, Cisco,
Cohda Wireless, TAC, VicRoads and WSP has completed
a round of trials in the AIMES ecosystem (the Australian
Integrated Multimodal EcoSystem), leveraging the
infrastructure for connected and automated vehicles, and
for edge computing.
Artificial intelligence in transportation systemPoojaBele1
A presentation to show the use of artificial intelligence in transportation system.
Artificial Intelligence makes the transportation system more easier.
This presentation contains points to be studies in this field.
Edge computing for CAVs and VRU protectionCarl Jackson
A partnership between the University of Melbourne, Cisco,
Cohda Wireless, TAC, VicRoads and WSP has completed
a round of trials in the AIMES ecosystem (the Australian
Integrated Multimodal EcoSystem), leveraging the
infrastructure for connected and automated vehicles, and
for edge computing.
What is Truck Platooning?
Level 2 truck platooning extends radar and vehicle-to-vehicle, communications-based, cooperative-adaptive cruise control using precise automated lateral and longitudinal vehicle control to maintain a tight formation of vehicles with short following distances. A manually driven truck leads a platoon, allowing the driver(s) of the following truck(s) to disengage from driving tasks and monitor system performance. Level 1 truck platooning has demonstrated the potential for significant fuel savings, enhanced mobility and associated emissions reductions from platooning vehicles. Level 2 automation may increase these benefits while reducing driver workload and increasing safety.
The planning of a wind farm, which minimizes the project costs and maximizes the power generation capacity, presents significant challenges to today’s wind energy industry. An optimal wind farm planning strategy that accounts for the key factors (that can be designed) influencing the net power generation offers a powerful solution to these daunting challenges. This paper explores the influences of (i) the number of turbines, (ii) the farm size, and (iii) the use of a combination of turbines with differing rotor diameters, on the optimal power generated by a wind farm. We use a recently developed method of arranging turbines in a wind farm (the Unrestricted Wind Farm Layout Optimization (UWFLO)) to maximize the farm efficiency. Response surface based cost models are used to estimate the cost of the wind farm as a function of the the turbine rotor diameters and number of tur- bines. Optimization is performed using a Particle Swarm Optimization (PSO) algorithm. A robust mixed-discrete version of the PSO algorithm is implemented to appropriately account for the discrete choice of feasible rotor diameters. The use of an optimal combi- nation of turbines with differing rotor diameters was observed to significantly improve the net power generation. Exploration of the influences of (i) the number of turbines, and (ii) the farm size, on the cost per KW of power produced, provided interesting observations.
Vehicle-2-Vehicle Communication Based on Wireless Sensor NetworkjournalBEEI
Truck Platooning is a car innovation that permits gathering various trucks into a single element where one truck intently takes after the other that outcomes in an expanded street limit. This kind of detachment allows to a significant degree tight separations and synchronous driving between the vehicles. Our point is to plan and exhibit a self-ruling truck platooning framework given vehicle-to-vehicle (V2V) correspondence innovation. The structure utilises IEEE 802.15.4 remote convention joined with separation going sensors to enable vehicles inside the company to safely trade data progressively and naturally break and quicken in light of the lead truck. The rapid of remote correspondence permits to a significant degree tight separations and synchronous driving between the platooning vehicles.
(Paper) A Method for Sharing Traffic Jam Information using Inter-Vehicle Comm...Naoki Shibata
Shibata, N., Terauchi, T., Kitani, T., Yasumoto, K., Ito, M., Higashino, T.: A Method for Sharing Traffic Jam Information Using Inter-Vehicle Communication, The 2nd International Workshop on Vehicle-to-Vehicle Communications (V2VCOM) (Mobiquitous2006 Workshop), pp. 1-7, DOI:10.1109/MOBIQ.2006.340428 (July 2006) (invited paper).
http://ito-lab.naist.jp/themes/pdffiles/060725.shibata.v2vcom06.pdf
In this paper, we propose a method for cars to autonomously and cooperatively collect traffic jam statistics to estimate arrival time to destination for each car using inter-vehicle communication. In the method, the target geographical region is divided into areas, and each car measures time to pass through each area. Traffic information is collected by exchanging information between cars using inter-vehicle communication. In order to improve accuracy of estimation, we introduce several mechanisms to avoid same data to be repeatedly counted. Since wireless bandwidth usable for exchanging statistics information is limited, the proposed method includes a mechanism to categorize data, and send important data prior to other data. In order to evaluate effectiveness of the proposed method, we implemented the method on a traffic simulator NETSTREAM developed by Toyota Central R&D Labs, conducted some experiments and confirmed that the method achieves practical performance in sharing traffic jam information using inter-vehicle communication.
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
Inter vehicular communication
A Synopsis of Simulation and Mobility Modeling in Vehicular Ad-hoc Networks (...IOSR Journals
Abstract : Vehicular communication is considered to be a backbone for many critical safety applications. In
order to achieve a better implementation of any vehicular communication scenario, an efficient, accurate and
reliable simulator is essential. Various open source and commercial simulating tools are available for this
purpose. One of the key issues in this regard is the selection of a reliable simulator which implements all
standard algorithms and paradigms giving accurate results. In this paper, we first present IEEE standard and
protocols for vehicular communication, IEEE 802.11p and IEEE 1609.x, also known as WAVE protocol stack.
The paper then discusses the necessary requirements for a generic discrete event simulator which can be used to
simulate Vehicular Ad-hoc Networks. Since not all the network simulators can be used in the scenario of
vehicular communication, we highlight the key features of some network simulators in the context of vehicular
ad-hoc networks. The paper also highlights some of the implementation limitations in these simulators.
Furthermore, the paper presents a discussion on traffic simulators by emphasizing on the underlying mobility
models used in order to generate the realistic traffic patterns. A comparative study of both network and traffic
simulators show the pros and cons of these simulation tools. The paper suggests the appropriate choice of a
network simulator to be used as a VANET simulator.
Keywords: VANET, IEEE 802.11p, WAVE-PHY, WAVE-MAC, Simulators, Modeling
Edge computing for CAVs and VRU protection Carl Jackson
A partnership between the University of Melbourne, Cisco,
Cohda Wireless, TAC, VicRoads and WSP has completed
a round of trials in the AIMES ecosystem (the Australian
Integrated Multimodal EcoSystem), leveraging the
infrastructure for connected and automated vehicles, and
for edge computing.
Artificial intelligence in transportation systemPoojaBele1
A presentation to show the use of artificial intelligence in transportation system.
Artificial Intelligence makes the transportation system more easier.
This presentation contains points to be studies in this field.
Edge computing for CAVs and VRU protectionCarl Jackson
A partnership between the University of Melbourne, Cisco,
Cohda Wireless, TAC, VicRoads and WSP has completed
a round of trials in the AIMES ecosystem (the Australian
Integrated Multimodal EcoSystem), leveraging the
infrastructure for connected and automated vehicles, and
for edge computing.
What is Truck Platooning?
Level 2 truck platooning extends radar and vehicle-to-vehicle, communications-based, cooperative-adaptive cruise control using precise automated lateral and longitudinal vehicle control to maintain a tight formation of vehicles with short following distances. A manually driven truck leads a platoon, allowing the driver(s) of the following truck(s) to disengage from driving tasks and monitor system performance. Level 1 truck platooning has demonstrated the potential for significant fuel savings, enhanced mobility and associated emissions reductions from platooning vehicles. Level 2 automation may increase these benefits while reducing driver workload and increasing safety.
The planning of a wind farm, which minimizes the project costs and maximizes the power generation capacity, presents significant challenges to today’s wind energy industry. An optimal wind farm planning strategy that accounts for the key factors (that can be designed) influencing the net power generation offers a powerful solution to these daunting challenges. This paper explores the influences of (i) the number of turbines, (ii) the farm size, and (iii) the use of a combination of turbines with differing rotor diameters, on the optimal power generated by a wind farm. We use a recently developed method of arranging turbines in a wind farm (the Unrestricted Wind Farm Layout Optimization (UWFLO)) to maximize the farm efficiency. Response surface based cost models are used to estimate the cost of the wind farm as a function of the the turbine rotor diameters and number of tur- bines. Optimization is performed using a Particle Swarm Optimization (PSO) algorithm. A robust mixed-discrete version of the PSO algorithm is implemented to appropriately account for the discrete choice of feasible rotor diameters. The use of an optimal combi- nation of turbines with differing rotor diameters was observed to significantly improve the net power generation. Exploration of the influences of (i) the number of turbines, and (ii) the farm size, on the cost per KW of power produced, provided interesting observations.
A collection of mobile nodes is known as ad-hoc network in which wireless communication network is used to connect these mobile nodes. A major requirement on the MANET is to provide unidentifiability and unlinkability for mobile nodes During the last few decades, continuous progresses in wireless communications have opened new research fields in computer networking, goal of extending data networks connectivity to environments where wired solutions are impracticable. Among these, vehicular traffic is attracting a increasing attention from both academic and industry, due to the amount and importance of the related applications, ranging from road safety to traffic control, up to mobile entertainment. Vehicular Ad-hoc Network(VANETs) are self-organized networks built up from moving vehicles, and are part of the broader class of Mobile Ad-hoc Net- works(MANETs). Because of their peculiar characteristics, VANETs require the definition of specific networking techniques, whose feasibility and performance are usually tested by means of simulation. One of the main challenges posed by VANETs simulations is the faithful characterization of vehicular mobility at both macroscopic and microscopic levels, leads to realistic non-uniform distributions of cars and velocity, and unique connectivity dynamics. There are various secure routing protocols have been proposed, but the requirement is not satisfied. The existing protocols are unguarded to the attacks of fake routing packets. Simulation results have demonstrated the effectiveness of the proposed AODV protocol with improved performance as compared to the existing protocols.
Next generation 5G wireless solutions need to meet the anticipated demands of Machine-to-Machine (M2M) communications in the 2020 era with the total number of devices expected to be about 50 billion for a projected population of around 8 billion according to an Ericsson report. M2M applications can be classified into two categories: Low-cost wide-area and low-latency ultra-reliable M2M. Low-cost wide-area M2M communication requires simple hardware architecture, integration of significant energy efficiency methods and energy harvesting technologies, and enhanced coverage, for such applications as smart metering, fire alarms, sensor networks. Despite LTE enhancements proposed for this class of M2M, however, LTE is not expected to be dominantly used in the near future due to its low coverage and high cost equipment, according to Cisco VNI Mobile, 2015. More research is needed to natively include this M2M class in 5G networks. On the other hand, low-latency ultra-reliable M2M communication requires satisfying strict delay constraint and ultra-high reliability of such applications as platooning of vehicles, robotic control and interaction, remote health care. Controlling the elements in our environment based on the data provided from these machines in this class of M2M applications requires a paradigm shift for control and communication systems with novel strategies for their joint design in beyond 5G networks.
In Critical Embedded Systems Electronics is central. This presentation focuses on how Automotive Electronics is developped to reach the stringent objectives of this critical systems domain.
2015 D-STOP Symposium session by Robert Heath, UT Austin's Wireless Networking & Communications Group.
Get symposium details: http://ctr.utexas.edu/research/d-stop/education/annual-symposium/
Car electronization trend in automotive industryKenji Suzuki
As EV/HEV and other alternative powertrain gaining popularity, more and more electronics are adopted in a vehicle. Until recently, such electronics were supplied mainly by "conventional" tier1s and tier2s in the industry. However, the increase in electronics used in a vehicle is opening up the door for consumer electronics manufacturers to join.
What does it mean in terms of reliability and durability of a vehicle. What needs to be done for reliability and durability assessment.
Definition:WiMAX is a fourth generation (4G) technology.WiMAX stands for Worldwide Interoperability for Microwave Access.WiMAX is technically also known as “IEEE 802.16”WiMAX is a wireless communications standard designed for creating Metropolitan Area Networks(MANs).A Broadband Wireless Access(BWA) technique offering fast broadband connection.It allows a user, to browse the internet on a laptop without physically connecting it to a router.It involves microwaves for the transfer of data wirelessly.Founded by Ensemble, CrossSpan, Harris & Nokia.
A schematic showing laser plastic welded sensor housings and other electronics of a car.
Electronics make up roughly 1/3 of the cost of a car. Securely welded plastic housings ensure those electronics are well protected.
Wireless Networked Control Systems (WNCSs) are spatially distributed systems in which sensors, actuators, and controllers connect through a wireless network instead of traditional point-to-point links. WNCSs have a tremendous potential to improve the efficiency of many large-scale distributed systems in industrial automation, building automation, automated highway, air transportation, and smart grid. Transmitting sensor measurements and control commands over wireless links provide many benefits such as the ease of installation and maintenance, low complexity and cost, and large flexibility to accommodate the modification and upgrade of the components in many control applications. Several industrial organizations, such as International Society of Automation (ISA), Highway Addressable Remote Transducer (HART), and Wireless In- dustrial Networking Alliance (WINA), have been actively pushing the application of wireless technologies in the control applications. Building a WNCS is very challenging since control systems often have stringent requirements on timing and reliability, which are difficult to attain by wireless sensor networks due to the adverse properties of the wireless communication and limited battery resources of the nodes. We provide a framework for the joint optimization of controller and communication systems encompassing efficient abstractions of both systems.
Introduction
Background
WSN Design Issues: MAC Protocols, Routing Protocols, Transport Protocols
Performance Modeling of WSNs: Performance Metrics, Basic Models, Network Models
Case Study: Simple Computation of the System Life Span
Practical Example.
A WSN primary outline issue for a sensor system is protection of the vitality accessible at every sensor node. We propose to convey different, versatile base stations to delay the lifetime of the sensor system. We split the lifetime of the sensor system into equivalent stretches of time known as rounds. Base stations are migrated toward the begin of a round. Our strategy utilizes a whole number straight program to focus new areas for the base stations and in view of steering convention to guarantee vitality proficient directing amid every round. We propose four assessment measurements and look at our answer utilizing these measurements. Taking into account the reproduction results we demonstrate that utilizing various, versatile base stations as per the arrangement given by our plans would altogether expand the lifetime of the sensor system.
A Vision for a Holistic and Smart Grid with High Benefits to SocietyStephen Lee
Presented on Dec 2, 2009 as a keynote speech to the 2009 T&D Asia Conference in Bangkok and followed by moderating a round-table discussion of top utility executives in SE Asia.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Congestion Control in Wireless Sensor Networks: A surveyIJERA Editor
Congestion is a major problem in almost all kinds of wireless networks such as mobile ad-hoc networks; wireless
sensor networks (WSNs). There are variety of applications of WSN such as defense, temperature monitoring,
health monitoring. Congestion occurs in the sensor network because of limited resources such as low processing
power of the sensor node. As all the sensor nodes are battery powered. Hence, congestion in the sensor network
results in waste of energy of sensor nodes. All the layers of protocol suite of the network can be involved in the
congestion control process. This paper gives a brief idea about various congestion control methods. In some of
the schemes, cross-layer design is applied for better results.
A SURVEY ON DIFFERENT TYPES OF CLUSTERING BASED ROUTING PROTOCOLS IN WIRELESS...Journal For Research
In most of today’s application the wireless sensor network (WSN) play an important role.WSN is an autonomous system to monitor physical and environmental conditions. It can sense and compute the information or data or message that transmitted through it. Important design issue of the Wireless sensor networks energy consumption and lifetime of the network. The design of different routing protocol is another important design issue in WSN. There are mainly broad types of routing protocols in wireless sensor networks. This paper mainly deals with different types of cluster based routing protocols in WSN. Clustering algorithms are mainly defined to reduce the energy consumption and improves the life time of the network.
Similar to Intra-vehicular Wireless Sensor Networks (20)
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Gen AI Study Jams _ For the GDSC Leads in India.pdf
Intra-vehicular Wireless Sensor Networks
1. Intra-Vehicular Wireless Sensor Networks
Sinem Coleri Ergen
Wireless Networks Laboratory,
Electrical and Electronics Engineering,
Koc University
2. Outline
Motivation for Intra-Vehicular Wireless Sensor Networks
Physical Layer Design
Medium Access Control Layer
Conclusion
Current Projects at WNL
3. Outline
Motivation for Intra-Vehicular Wireless Sensor Networks
Physical Layer Design
Medium Access Control Layer
Conclusion
Current Projects at WNL
4. History of In-Vehicle Networking
Early days of automotive electronics
Each new function implemented as a stand-alone ECU, subsystem
containing a microcontroller and a set of sensors and actuators
Data exchanged between point-to-point links
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Module
Body Control
Module
EECCUU
5. History of In-Vehicle Networking
In the 1990s
Increase in the number of wires and connectors caused weight, cost,
complexity and reliability problems
Developments in the wired communication networks
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Body Control
Module
Body Control
Module
6. History of In-Vehicle Networking
In the 1990s
Increase in the number of wires and connectors caused weight, cost,
complexity and reliability problems
Developments in the wired communication networks
Multiplexing communication of ECUs over a shared link called bus
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7. History of In-Vehicle Networking
Today
Increases in number of sensors as electronic systems in vehicles are
replacing purely mechanical and hydraulic systems causes weight, cost,
complexity and reliability problems due to wiring
Advances in low power wireless networks and local computing
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8. History of In-Vehicle Networking
Today
Increases in number of sensors as electronic systems in vehicles are
replacing purely mechanical and hydraulic systems causes weight, cost,
complexity and reliability problems due to wiring
Advances in low power wireless networks and local computing
Intra-Vehicular Wireless Sensor Networks (IVWSN)
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9. First IVWSN Example: Intelligent Tire
Active Safety Systems
•Change the behavior of vehicle in pre-crash
time or during the crash event to avoid the
crash altogether
•Examples: Anti-lock Braking System (ABS),
Traction Control System (TCS), Electronic
Stability Program (ESP), Active Suspension
System
Requires accurate and fast estimation of
vehicle dynamics variables
•Forces, load transfer, actual tire-road friction,
maximum tire-road friction available
On-board sensors + indirect estimation
Enable a wide range of new applications
Intelligent Tire
•More accurate estimation
•Even identify road surface condition in
real-time
10. IVWSN: Distinguishing Characteristics
Tight interaction with control systems
Sensor data used in the real-time control of mechanical parts in different
domains of the vehicles
Very high reliability
Same level of reliability as the wired equivalent
Energy efficiency
Remove wiring harnesses for both power and data
Heterogeneity
Wide spectrum for data generation rate of sensors in different domains
Harsh environment
Large number of metal reflectors, a lot of vibrations, extreme temperatures
Short distance
Maximum distance in the range 5m-25m
11. Outline
Motivation for Intra-Vehicular Wireless Sensor Networks
Physical Layer Design
Medium Access Control Layer
Conclusion
Current Projects at WNL
12. Wireless Channel Measurements
Building a detailed model for IVWSN requires
Classifying the vehicle into different parts of similar propagation
characteristics
Collecting multiple measurements at various locations belonging
to the same class
engine
passenger compartment
beneath chassis
trunk
13. Wireless Channel Model: Beneath Chassis
81*18 measurement points at
Two different vehicles: Fiat Linea and Peugeot Bipper
Different scenarios: engine off, engine on, moving on the road
15. Channel Model: Large Scale Statistics
General shape of impulse response: Saleh-Valenzuela Model
inter-arrival time
of clusters
cluster amplitude
ray decay rate
16. Channel Model: Small Scale Statistics
Characterized by fitting 81 amplitude values to
alternative distributions
17. Channel Model: Simulation Results
Qualitative comparison Quantitative comparison
experimental power delay profile
simulated power delay profile
18. Outline
Motivation for Intra-Vehicular Wireless Sensor Networks
Physical Layer Design
Medium Access Control Layer
Conclusion
Current Projects at WNL
19. Medium Access Control Layer: System Requirements
Packet generation period, transmission delay and
reliability requirements:
(Tl ,dl ,rl )
Network Control Systems: sensor data -> real-time control of
mechanical parts:
Automotive system, no automatic way of validating the performance of
control systems for different
-> use extensive simulations of closed loop models for a given
Main characteristics:
(Tl ,dl ,rl )
Fixed determinism better than bounded determinism in control systems
As increases, the upper bound on decreases down to zero
Tl
dl
(Tl ,dl ,rl )
20. Medium Access Control Layer: System Requirements
Adaptivity requirement
Nodes should be scheduled as uniformly as possible
EDF
Uniform
21. Medium Access Control Layer: System Requirements
Adaptivity requirement
Nodes should be scheduled as uniformly as possible
1
EDF Uniform
22. Medium Access Control Layer: System Requirements
Adaptivity requirement
Nodes should be scheduled as uniformly as possible
2
EDF Uniform
23. Medium Access Control Layer: System Requirements
Adaptivity requirement
Nodes should be scheduled as uniformly as possible
3
EDF Uniform
24. Medium Access Control Layer: System Model
(Tl ,dl ,rl )
T1 £ T2 £ ... £ TL
given for each link l
Choose subframe length as for uniform allocation
Assume is an integer: Allocate every subframes
Uniform distribution minimize max subframe active time
Ti /T1 = si
T1
si
º
EDF
Uniform
max active time=0.9ms
max active time=0.6ms
✓
25. Medium Access Control Layer: One ECU
Maximum active time of subframes
Periodic packet generation
Delay requirement
Energy requirement
Maximum allowed power by UWB regulations
Transmission time
Transmission rate of UWB for no
concurrent transmission case
26. Medium Access Control Layer: One ECU
Optimal power and rate allocation is independent of optimal
scheduling
One link is active at a time
Given transmit power, both time slot length and energy
minimized at maximum rate
Maximum rate and minimum energy at and
27. Medium Access Control Layer: One ECU
Optimal scheduling problem decomposed from optimal power
and rate allocation: Mixed Integer Programming Problem
Periodic packet
generation
Maximum active time of subframes
NP-hard: Reduce the NP-hard Minimum Makespan Scheduling
Problem on identical machines to our problem.
28. Medium Access Control Layer: One ECU
Smallest Period into Shortest Subframe First (SSF) Scheduling
2-approximation algorithm
30. Medium Access Control Layer: One ECU Simulations
Use intra-vehicle UWB channel model
Ten different random selection out of
predetermined locations
31. Medium Access Control Layer: Multiple ECU
How to exploit concurrent transmission to multiple ECUs to
decrease the maximum active time of subframes?
Allow concurrent transmission of sensors with the same packet
generation period -> fixed length slot over all frame assignment
What is the power, rate allocation and resulting length of time slot
if they are combined?
How to decide which nodes are combined?
32. Medium Access Control Layer: Multiple ECU
Optimal power allocation for the concurrent transmission of n
links: Geometric Programming Problem
-> Power control needed in UWB Packet based networks
Delay requirement
Energy requirement
Transmission time=
packet length/
rate of UWB for
concurrent transmission
33. Medium Access Control Layer: Multiple ECU
Which slots to combine?
-> Mixed Integer Linear Programming problem
Propose Maximum Utility based Concurrency Allowance
Scheduling Algorithm
Define utility of a set: decrease in transmission time when
concurrent
In each iteration, add the node that maximized utility
Until no more node can be added to increase utility
35. Outline
Motivation for Intra-Vehicular Wireless Sensor Networks
Physical Layer Design
Medium Access Control Layer
Conclusion
Current Projects at WNL
36. Conclusion
Intra-vehicular wireless sensor networks
Increases in number of sensors causes weight, cost, complexity and
reliability problems due to wiring
Advances in low power wireless networks and local computing
Physical layer
Large scale-statistics: path loss, power variation
General shape of impulse response: Modified Saleh-Valenzuela model
Small-scale statistics
Medium access control layer
Adaptivity requirement: Minimize maximum active of subframes
Tight interaction with vehicle control systems
Delay, energy and reliability requirements
One ECU: 2-approximation algorithm
Multiple ECU: Utility based algorithm to decrease subframe length
37. Publications
Y. Sadi and S. C. Ergen, “Optimal Power Control, Rate Adaptation and
Scheduling for UWB-Based Intra-Vehicular Wireless Sensor Networks”, IEEE
Transactions on Vehicular Technology, vol. 62, no. 1, pp. 219-234, January 2013. [pdf
| link]
C. U. Bas and S. C. Ergen, “Ultra-Wideband Channel Model for Intra-Vehicular
Wireless Sensor Networks Beneath the Chassis: From Statistical Model to
Simulations”, IEEE Transactions on Vehicular Technology, vol. 62, no. 1, pp. 14-25,
January 2013. [pdf | link]
U. Demir, C. U. Bas and S. C. Ergen, "Engine Compartment UWB Channel Model
for Intra-Vehicular Wireless Sensor Networks", IEEE Transactions on Vehicular
Technology, vol. 63, no. 6, pp. 2497-2505, July 2014. [pdf | link]
38. Outline
Motivation for Intra-Vehicular Wireless Sensor Networks
Physical Layer Design
Medium Access Control Layer
Conclusion
Current Projects at WNL
Scheduling design necessitates understanding requirements of sensor nodes and network
If we had chosen a smaller subframe length
than T1, say T1=2, this may have resulted in a more uniform
distribution than choosing T1 still satisfying the periodic data
generation and delay requirements of the sensors. However,
since a transmission cannot be done partially in different time
intervals, the shorter unallocated time duration at the end of the
subframes may not allow including new nodes, changing the
transmission time or allocating additional messages violating
the adaptivity requirement. The shorter subframe length may
even avoid generating feasible schedules if the length of the
time slots is too large to fit in one subframe. Choosing the
subframe length larger than T1 on the other hand does not
bring any advantage and result in less uniform distribution.
If we had chosen a smaller subframe length
than T1, say T1=2, this may have resulted in a more uniform
distribution than choosing T1 still satisfying the periodic data
generation and delay requirements of the sensors. However,
since a transmission cannot be done partially in different time
intervals, the shorter unallocated time duration at the end of the
subframes may not allow including new nodes, changing the
transmission time or allocating additional messages violating
the adaptivity requirement. The shorter subframe length may
even avoid generating feasible schedules if the length of the
time slots is too large to fit in one subframe. Choosing the
subframe length larger than T1 on the other hand does not
bring any advantage and result in less uniform distribution.