一种基于中继节点的线性无线传感器网络数据收集MAC协议  

A MAC Protocol for Data Gathering in Linear Wireless Sensor Network Based on Selective Relay Nodes

作　　者：戴国勇[1,2] 苗春雨[1] 毛科技[1] 王凯[1] 陈庆章[1] 

机构地区：[1]浙江工业大学计算机科学与技术学院,杭州310023 [2]浙江树人大学信息科技学院,杭州310014

出　　处：《传感技术学报》2014年第7期939-947,共9页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金面上项目(61379023);浙江省自然科学基金项目(LY12F02036);浙江省大学生科技创新活动计划(新苗人才计划)项目(2013R403064)

摘　　要：MAC协议对于无线传感器网络的能效是至关重要的。针对线性无线传感器网络设计了一个基于中继节点的数据收集MAC协议SLDMAC。源节点向汇聚节点发送数据时,引入节点能耗因子和剩余能量均衡因子两个参数,通过优化这两个参数,选择合适的中间节点进行中继,从而提升网络的性能。实验结果表明:与DMAC协议相比,SLDMAC协议提升了网络的能效和生存周期。Medium access control（ MAC） protocol is of paramount importance for energy efficiency in wireless sensor networks. An energy efficient MAC protocol SLDMAC is designed for data gathering in linear wireless sensor networks. In order to enhance the performance,when a source node transmits data to the Sink,proper relay nodes are selected for forwarding data according to the energy consumption factor of individual node and residual energy balance factor. Some simulation experiments are conducted and the results show that, SLDMAC provides better energy efficiency and long lifetime than the existing DMAC protocol.

关 键 词：无线传感器网络 线性拓扑 MAC协议 低能耗 中继 

分 类 号：TN915[电子电信—通信与信息系统]