Mobile node aware opportunistic routing in dynamic wireless sensor network

作     者：Lü Xiaojun Jia Xinchun Han Zongyuan Yang Bo Hao Jun 

作者机构：Institute of Computing Technologies China Academy of Railway Sciences Beijing 100081 China School of Mathematical Sciences Shanxi University Taiyuan 030006 China 

出 版 物：《The Journal of China Universities of Posts and Telecommunications》 (中国邮电高校学报（英文版）)

年 卷 期：2016年第23卷第5期

页      面：15-25页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 080202[工学-机械电子工程] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China (U1334210  61374059) 

主　　题：OR dynamic WSN mobile node selection strategy high-speed railway 

摘      要：Opportunistic routing （OR） could adapt to dynamic wireless sensor networks （WSNs） because of its inherent broadcast nature. Most of the existing OR protocols focus on the variations of propagation environment which are caused by channel fading. However, a few works deal with the dynamic scenario with mobile nodes. In this paper, a mobile node （MN） aware OR （MN-OR） is proposed and applied to a WSN in the high-speed railway scenario where the destination node is deployed inside a high speed moving train, and the MN-OR not only considers the mobility of node but also utilizes the candidate waiting time induced by the timer-based coordination scheme. Specifically, to reduce the number of duplicate transmissions and mitigate the delay of information transmission, a new selection strategy of the candidate forwarders is presented. In addition, two priority assignment methods of the candidate forwarders are proposed for the general relay nodes （GRNs） and the rail-side nodes （RSNs） according to their different routing requirements. Extensive simulation results demonstrate that the proposed MN-OR protocol can achieve better network performances compared with some existing routing schemes such as the well-known Ad-hoc on-demand distance vector routing （AODV） and the extremely opportunistic routing （ExOR） protocols.