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.
出处
《传感技术学报》
CAS
CSCD
北大核心
2012年第10期1452-1457,共6页
Chinese Journal of Sensors and Actuators
基金
军内预研课题
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
wireless sensor network
MAC protocol
temporary communication identification
sleep scheduling
reducing energy
