Multi-hop broadcasting in WAVE multi-channel vehicular networks: Single transceiver case

Multi-hop data dissemination in vehicular ad hoc networks (VANETs) has been very challenging due to the vehicle movement, various vehicle densities and the lossy characteristics of a wireless channel. The problem of how to provide an efficient broadcasting of time-critical broadcast messages under multi-channel operation of IEEE WAVE standard has not been discussed sufficiently. In this paper, we discuss the multi-hop broadcast problem in multi-channel environment defined by IEEE WAVE, and propose a multi-hop broadcast protocol which conducts efficient channel utilization with single transceiver. We use computer simulations to show the advantage of the proposed protocol over other existing alternatives.