基于节能的定向扩散水声传感器网络路由算法  

A Directed Diffusion-Based Energy Routing Algorithm for Underwater Acoustic Sensor Networks

作　　者：刘广钟[1] 刘晓晖[1] 

机构地区：[1]上海海事大学信息工程学院,上海200135

出　　处：《计算机系统应用》2011年第12期95-98,共4页Computer Systems & Applications

基　　金：国家自然科学基金(60972074)

摘　　要：在无线传感器网络中,经常采用洪泛协议寻找路径,但是洪泛形式容易造成信息内爆和重叠的现象。定向扩散(DD)利用兴趣传递,限制了节点的报文转发,性能优于洪泛协议。但是由于水声通信的复杂情况,传统的定向扩散不能实现能量的高效利用。结合水声信道特点,综合考虑了节点的剩余能量、传输距离以及转发跳数等因素,提出了一种自适应能量均衡定向扩散(Adaptive Energy Balance-Directed Diffusion)路由算法(AEB-DD)。通过仿真实验证明,AEB-DD有效的延长了网络的生命期,降低了端到端的数据丢包率。In wireless sensor networks, we often use flooding protocol to f＇md the path, but the flooding protocol can easily,create information implosion and overlap. Directed Diffusion （DD） uses the interest broadcast, limits the node for packet forwarding. The performance is better than flooding protocol. However, due to the complexities of underwater acoustic communication, the traditional directed diffusion can＇t achieve efficient use of energy. In this paper, we consider the characteristics of underwater acoustic channel, the node＇s residual energy, transmission distance between nodes, forward hops, and then proposed an energy balance, adaptive direct diffusion routing algorithm （AEB-DD）. The simulation results prove that AEB-DD effectively extend the lifetime of the network, reducing the end to end data packet loss rate.

关 键 词：水声传感器网络 定向扩散 自适应 能量均衡 

分 类 号：TN929.3[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]