水声传感网中节省能量的寻路机制  

Energy Saving Route Finding Mechanism in Underwater Acoustic Sensor Networks

作　　者：杨光松[1,2] 肖明波[1,3] 程恩[1,3] 张静[1,3] 

机构地区：[1]厦门大学水声通信与海洋信息技术教育部重点实验室,厦门361005 [2]集美大学信息工程学院,厦门361021 [3]厦门大学通信工程系,厦门361005

出　　处：《北京邮电大学学报》2009年第B04期88-92,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(60672046);集美大学优秀青年骨干教师基金项目(2008B002)

摘　　要：提出了水声传感网中能量有效的路由方案.结合水声信道的特点对水下传感网中的能耗因素进行分析,得出给定源宿节点之间的距离时路径消耗总能量与中继节点数的关系.对定向扩散协议进行改进,在初始化阶段根据汇聚节点和邻居节点的地理信息,求出源节点到目的节点的理想的最优能量路径.仿真结果证明,该方案能减少洪泛,只需选择1条较优路径,有效地节省了能量.An energy-efficient routing scheme is presented for underwater acoustic sensor net-works （UW-ASN）. Firstly, the factors affecting energy consumption in UW-ASN are analyzed in light of underwater channels, the relationship between numbers of relay nodes and energy consumption is obtained for given source-destination distance. The directed diffusion routing scheme is modified in the initial diffusion phase to find the optimal route based on the geographic information between a sink node and its neighboring nodes. Simulation shows that the proposed scheme can reduce the flooding cost, select an energy-efficient route, and save more energy.

关 键 词：水声传感器网络 能量消耗 路由 仿真 

分 类 号：TN929.53[电子电信—通信与信息系统]