A Study of Multi-Priority Opportunistic Directional Routing for VANET
In Vehicular Ad-hoc Network (VANET), the multi-hop routing frequently breaks off, which has a negative effect on the reliability and transmission quality of the network. The paper proposes a new routing algorithm based on the geographical position, called Multi-Priority Opportunistic Directional Routing (MPODR). The algorithm improves the existing Opportunistic Directional Forwarding Strategy from two aspects. Moreover, it works together with 802.11p protocol, and adds a strategy to process the security alarm packets with high-priority, which makes the algorithm reliable and efficient. We compare the performance of GPSR and MPODR using network simulator NS2, with a specialized node mobility model simulator called VanetMobiSim to produce realistic vehicular movement trace. In the simulation, MPODR shows a much better performance than GPSR, the packet loss rate is reduced by about 80%, and the delay of the high-priority packet is within 300ms. As a result, MPODR is more suitable for vehicular network.
Zhigang Jin Wei Deng Ningxiao Yan Bing Li
School of Electronic and Information Engineering Tianjin University Tianjin, China School of Computer Science and Technology Tianjin University Tianjin, China
国际会议
上海
英文
1-4
2010-10-20（万方平台首次上网日期，不代表论文的发表时间）