Vehicular ad hoc networks bring new applications and services for wireless networks, such as information sharing among vehicles. These applications need data dissemination strategies or routing protocols to transmit data among vehicles efficiently. In order to reduce the transmission delay between the source vehicle and the destination vehicle, an efficient forwarding algorithm called timer‐based greedy forwarding (TGF) is proposed in this study. TGF can find forwarding paths with fewer hop counts, lower transmission delay and fewer control packets. The proposed TGF chooses the farthest vehicle from a sender to be a packet forwarder, which is decided by receivers themselves. Although the concept of the TGF is similar to the greedy forwarding algorithm, the message exchanging for neighbouring information maintenance in the proposed TGF is unnecessary. To achieve this goal, three challenges that need to be tackled in the TGF are (i) the farthest node selection, (ii) timer error at an intersection and (iii) processing of redundant forwarded packets. Comparing with other methods, the simulation results show that the proposed TGF reduces the number of control packets, transmission delay and hop counts between a source vehicle and a destination vehicle significantly.
Timer‐based greedy forwarding algorithm in vehicular ad hoc networks
IET Intelligent Transport Systems ; 8 , 4 ; 333-344
01.06.2014
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
source vehicle , timer‐based greedy forwarding algorithm , data transmission , vehicular ad hoc networks , hop counts , radio data systems , transmission delay , TGF algorithm , message passing , information sharing , timer error , routing protocols , redundant forwarded packet processing , neighbouring information maintenance , destination vehicle , greedy algorithms , farthest node selection , radio access networks , wireless networks , control packets , data dissemination strategies , message exchanging , traffic information systems
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