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A link state aware geographic routing protocol for vehicular ad hoc networks
By : Ali Moallim
Date : 2017-10-13
Views : 50

In vehicular ad hoc networks (VANETs), the communication links are inherently unstable due to vehicles mobility and
various impairment of radio signal. Existing geographic routing protocols often choose the next hop according to the
greedy forwarding, regardless of the links quality and transmission reliability. The successful packet delivery rate is
decreased in non-ideal communication links. Consequently, the reliability of data transmission is worse and the
network throughput is declined. In this paper, we propose a routing protocol called link state aware geographic
routing protocol (LSGR) for VANETs. In LSGR, a routing metric called expected one-transmission advance (EOA) is
contrived to improve the greedy forwarding algorithm by explicitly incorporating the link state and packets advance.
Routing with the EOA metric, one can improve the transmission efficiency by diminishing transmission failures.
Simulation results show that LSGR can achieve a higher throughput and packet delivery rate than the geographic
routing protocols that adopt the traditional greedy forwarding.
 
(Total:565 articles / page:1/57 )
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