层次无线传感器网络中骨干层MAC协议设计  

MAC Protocol Design for Bone Network of Layer WSN

作　　者：马涛[1] 单洪[1] 陈娟[2] 

机构地区：[1]合肥电子工程学院网络工程系,合肥230037 [2]合肥陆军军官学院三系,合肥230031

出　　处：《传感技术学报》2012年第10期1452-1457,共6页Chinese Journal of Sensors and Actuators

基　　金：军内预研课题

摘　　要：针对层次无线传感器网络中骨干层数据量大、高负载的业务特点,从减少冲突碰撞概率、降低重传开销和适时休眠三个方面考虑设计了一种骨干层MAC协议(GBN-MAC)。GBN-MAC根据节点收到的RTS(Request To Send)帧和分片数据帧进行休眠,使用临时通信标识符降低分片传输的额外开销。仿真结果表明在高负载下,GBN-MAC协议能够在基本保持网络时延和吞吐量的情况下明显降低能量消耗,可以较好地满足骨干层设计要求。To the characteristics of great data traffic and high load of bone WSN,GBN-MAC is designed from three aspects including less collision,lower retransmission spending and timing dormancy.In this protocol,the radio of nodes is turned off when the node has heard a RTS（Request To Send）or fragment data frame.Temporary communication identification is used to reduce overhead made by data fragment.Simulation analysis shows GBN-MAC can keep high throughput under high load with energy saving at the same time.

关 键 词：无线传感器网络 MAC协议 临时通信标识 休眠调度 降低能耗 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]