Title :
Multi-Hop Broadcasting in Vehicular Ad Hoc Networks with Shockwave Traffic
Author :
Chen, Rex ; Jin, Wenlong ; Regan, Amelia
Author_Institution :
Univ. of California, Irvine, CA, USA
Abstract :
A primary goal of intelligent transportation systems (ITS) is to improve road safety. The ability for vehicles to communicate is a promising way to alleviate traffic accidents by reducing the response time associated with human reaction to nearby drivers. In addition the limitations of standard driving can be overcome by providing drivers with instantaneous information about complications up ahead. Shockwaves, induced by vehicle speed differentials, are a typical mobility pattern that occurs with the formation and propagation of vehicle queues. These induce sudden braking and increase the occurrence of traffic incidents. In this paper, we investigate safety applications in highways with shockwave mobility and different lane configurations in vehicular ad hoc networks (VANET). We evaluate the performance of multi-hop broadcast communication using the ns-2 simulator with vehicles following a shockwave mobility pattern in fully-connected traffic streams. We propose mechanism to improve broadcast reliability using dynamic transmission range that leverages our understanding of fundamental traffic flow relationships.
Keywords :
ad hoc networks; knowledge based systems; road safety; road traffic; road vehicles; traffic engineering computing; intelligent transportation systems; multihop broadcasting; ns-2 simulator; road safety; shockwave mobility pattern; shockwave traffic; traffic accidents; vehicle speed differentials; vehicular ad hoc networks; Ad hoc networks; Broadcasting; Intelligent transportation systems; Road accidents; Road safety; Road transportation; Spread spectrum communication; Telecommunication traffic; Traffic control; Vehicle driving;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2010 7th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-5175-3
Electronic_ISBN :
978-1-4244-5176-0
DOI :
10.1109/CCNC.2010.5421584