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http://dx.doi.org/10.7840/kics.2012.37B.8.695

Reliable Contention-Based Forwarding Approach  

Sung, Yoon-Young (이화여자대학교 컴퓨터공학과 커뮤니케이션네트워크 연구실)
Jo, Sun-Mi (이화여자대학교 컴퓨터공학과 커뮤니케이션네트워크 연구실)
Lee, Mee-Jeong (이화여자대학교 컴퓨터공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.8B, 2012 , pp. 695-705 More about this Journal
Abstract
Due to recent advances in wireless devices and the automotive industry, Vehicular Ad hoc Networks (VANETs) have emerged as a very promising technology for transferring data collected on the road by moving cars. The delivered data may contain emergency information which affects the safety of passengers and drivers as well as the traffic congestion, and the routing protocols have thus a significant impact on the performance of VANETs. In this paper, we study the impact of movement direction of the participating cars which forward data packets on the performance of data delivery and present a new approach which extends the contention-based forwarding (CBF). The proposed reliable CBF (R-CBF) increases the reliability of data deliver on the traffic lights installed roads and reduces the overall propagation delay without routing loops or interruption of data forwarding that may be caused by changes of relative positions of involving cars in routing. Simulation demonstrates that the R-CBF diminishes propagation delay by 38% in comparison to G-SRMB which forwards data to moving cars in the backward direction and eliminates unnecessary retransmissions.
Keywords
Contention-Based Forwarding; Reliability; movement direction of forwarding vehicles; traffic lights; vehicular ad hoc networks;
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  • Reference
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