Increasing broadcast reliability in vehicular ad hoc networks
Proceedings of the 3rd international workshop on Vehicular ad hoc networks
Variable-Range Transmission Power Control in Wireless Ad Hoc Networks
IEEE Transactions on Mobile Computing
Performance and reliability of DSRC vehicular safety communication: a formal analysis
EURASIP Journal on Wireless Communications and Networking - Special issue on wireless access in vehicular environments
An empirical model for probability of packet reception in vehicular ad hoc networks
EURASIP Journal on Wireless Communications and Networking - Special issue on wireless access in vehicular environments
An analytical model of multihop connectivity of inter-vehicle communication systems
IEEE Transactions on Wireless Communications
Performance analysis of DSRC priority mechanism for road safety applications in vehicular networks
Wireless Communications & Mobile Computing
Local Density Estimation and Dynamic Transmission-Range Assignment in Vehicular Ad Hoc Networks
IEEE Transactions on Intelligent Transportation Systems
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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.