一种适合水下无线传感器网络的能量有效路由协议

本文针对水下声信道高能耗和高延迟的特点,提出一种基于前向簇头与前向网关的无线路由协议(FFBR).其思想是基于分簇结构,引入前向簇头和前向网关的概念,并在分簇初始化的过程中"捎带"选择前向簇头和前向网关,以形成朝向sink的方向性节能路由.它避免了路由建立的开销和时延,同时保证数据传榆时网络能耗均衡,以减小水声高延迟、高能耗带来的不利影响.仿真结果表明,FFBR协议比DSR协议能更好地适应水声高延迟、高能耗通信环境,不但有较高的连通率,而且能节省网络能量,提高数据传输的及时性.

An Energy-efficient Routing Protocol Applied in Underwater Sensor Networks

In order to overcome long transmission delay and high energy consumption problems in under-water acoustic sensor network(UWASN),this paper proposes an efficient wireless routing protocol based on forward-clusterhead and forward-gateway(FFBR).It makes use of the concepts of forward-clusterhead(FC)and forward-gateway(FG),so the route from the source node to sink can be formed by the selection of FC and FG that are brought in during the initiation of clustering.FFBR is expected to balance energy consumption in data transimission without delay and spending of routing establishment.Experiments show that being compared with DSR protocol,FFBR achieves better performance on connectivity,energy comsumption,transmission-delay.Therefore,it can be well applied in the under water acoustic sensor network.