摘要
针对S-MAC协议节点能耗均衡能力的不足,提出一种基于网络能耗均衡的跨层优化协议(BS-MAC)。在该机制中,增加变量TS,用来记录该节点成为虚拟簇边界节点的次数,通过与邻居节点比较TS的大小进行自适应睡眠/侦听。在路由层成簇算法中加入参数TS,跨层调节节点能耗的均衡。仿真数据显示,BS-MAC在能耗和延迟方面较S-MAC没有大的变化,但能够提高网络节点能耗的均衡性,降低节点死亡率,延长网络生存周期。
For the fault of S-MAC protocol in energy-consume unbalance between nodes,a cross-layer optimization MAC protocol based on energy-consume balance（BS-MAC） is proposed.The new mechanism adds the new variable TS to record the number of times that the node becomes virtue clusters＇ boundary.Nodes sleep/listen adaptively through comparing TS with their neighbor nodes.BS-MAC adjusts the balance of energy-consume cross-layer with the clustering algorithm which adds TS.Numerical analysis shows that BS-MAC not only increases the balance of the nodes＇ energy consumption,reduces the nodes＇ mortality and extends the network life time,but also keeps the same energy-consume and delay with the S-MAC.
出处
《计算机工程》
CAS
CSCD
2012年第11期107-110,113,共5页
Computer Engineering
基金
重庆市教委科学技术研究基金资助项目(KJ110524)
关键词
无线传感器网络
跨层优化
能耗均衡
生存周期
分簇路由
BS-MAC协议
Wireless Sensor Network（WSN）
cross-layer optimization
energy-consume balance
life cycle
clustering routing
BS-MAC protocol
