A Cross-Layer Approach for Neighbor Discovery in Opportunistic Networks
In opportunistic networks, the Epidemic Routing (ER) protocol can offer a reliable way to transmit data. However, it has some extra latency in neighbor discovery. To address the problem, we propose a cross-layer approach to sense encountered nodes more quickly, which utilizes HELLO packets instead of the IMEP protocol to sense neighboring nodes, speeds sensing encountered nodes through cross-layer overhearing in MAC layers, and varies the period of HELLO packets to diminish unnecessary delivery of control packets. Results obtained from a series of simulation experiments show that our proposed approach outperforms the classical Epidemic Routing protocol and one of its present improvements in terms of the time of neighbor discovery and end-to-end packet delay.
opportunistic networks neighbor discovery crosslayer approach overhearing delay
Zhi Ren Hong Chen Jianling Cao Yukun Yao
School of Communication and Information Engineering,Chongqing University of Posts and Telecommunicat School of Communication and Information Engineering, Chongqing University of Posts and Telecommunica
国际会议
北京
英文
6-10
2011-11-27（万方平台首次上网日期，不代表论文的发表时间）