Experimental Analysis of Safety Application Reliability in V2V Networks

05/26/2020
by   Biplav Choudhury, et al.
0

Vehicle-to-Vehicle (V2V) communication networks enable safety applications via periodic broadcast of Basic Safety Messages (BSMs) or safety beacons. Beacons include time-critical information such as sender vehicle's location, speed and direction. The vehicle density may be very high in certain scenarios and such V2V networks suffer from channel congestion and undesirable level of packet collisions; which in turn may seriously jeopardize safety application reliability and cause collision risky situations. In this work, we perform experimental analysis of safety application reliability (in terms of collision risks), and conclude that there exists a unique beacon rate for which the safety performance is maximized, and this rate is unique for varying vehicle densities. The collision risk of a certain vehicle is computed using a simple kinematics-based model, and is based on tracking error, defined as the difference between vehicle's actual position and the perceived location of that vehicle by its neighbors (via most-recent beacons). Furthermore, we analyze the interconnection between the collision risk and two well-known network performance metrics, Age of Information (AoI) and throughput. Our experimentation shows that AoI has a strong correlation with the collision risk and AoI-optimal beacon rate is similar to the safety-optimal beacon rate, irrespective of the vehicle densities, queuing sizes and disciplines. Whereas throughput works well only under higher vehicle densities.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
12/08/2020

Joint Age of Information and Self Risk Assessment for Safer 802.11p based V2V Networks

Emerging 802.11p vehicle-to-vehicle (V2V) networks rely on periodic Basi...
research
08/08/2020

Performance Analysis of Cellular-V2X with Adaptive and Selective Power Control

LTE based Cellular Vehicle-To-Everything (C-V2X) allows vehicles to comm...
research
03/04/2023

Age of Information of CSMA/CA Based Wireless Networks

We consider a wireless network where N nodes compete for a shared channe...
research
04/25/2023

Focusing on Information Context for ITS using a Spatial Age of Information Model

New technologies for sensing and communication act as enablers for coope...
research
04/05/2021

Adaptive Semi-Persistent Scheduling for Enhanced On-road Safety in Decentralized V2X Networks

Decentralized vehicle-to-everything (V2X) networks (i.e., Mode-4 C-V2X a...
research
03/12/2023

Throughput of Freeway Networks under Ramp Metering Subject to Vehicle Safety Constraints

Ramp metering is one of the most effective tools to combat traffic conge...
research
04/23/2021

Extending the Heston Model to Forecast Motor Vehicle Collision Rates

We present an alternative approach to the forecasting of motor vehicle c...

Please sign up or login with your details

Forgot password? Click here to reset