无线传感器网络中一种高能效低延时的泛洪算法研究  

Research on a very energy-efficient and low-delay flooding algorithm for wireless sensor network

作　　者：李方敏[1] 刘新华[1] 旷海兰[2] 

机构地区：[1]武汉理工大学信息工程学院,湖北武汉430070 [2]衡阳师范学院计算机系,湖南衡阳421008

出　　处：《通信学报》2007年第8期46-53,共8页Journal on Communications

基　　金：国家教育部博士点基金资助项目(20050497006);新世纪优秀人才支持计划(NCET-05-0657);湖北省青年杰出人才基金资助项目(2006ABB028)~~

摘　　要：提出了一种新的应用于无线传感器网络的泛洪传播算法——覆盖优先泛洪算法。算法采用覆盖优先策略为相邻节点分配不同的转发优先权,实现泛洪包快速覆盖整个网络;采用节点转发抑制策略和动态延时转发机制,尽可能抑制冗余包和减少冲突重传。仿真结果表明,该算法与同类算法相比,具有更高的能源有效性,更低的延时。A novel flooding algorithm called priority covering algorithm was proposed for wireless sensor network. In the algorithm, a method of priority covering was used for assigning different forwarding priorities to vicinity nodes so as to make the flooding packet cover the whole network rapidly; a scheme of restrained forwarding and a scheme of dynamic delay for forwarding were used for restraining the redundant flooding packets and reducing the conflicting retransmission overhead. The result of simulation shows that the algorithm is more energy-efficient and low-delay than those similar flooding algorithms proposed.

关 键 词：无线传感器网络 泛洪 覆盖优先 动态延时 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]