摘要
针对异构传感器网络中的突发事件,文中提出的一种QoS路由协议(EQHR).EQHR路由协议主要由三个阶段组成:在网络初始化阶段,每个节点配置自身的路由表.在路径发现与建立阶段,当前节点寻找多条不相交路径中综合代价最小的路径.在数据通信与路径维护阶段,利用ACK确认机制来处理路径选择失败的问题.仿真结果表明,在相等数据发送率的前提下,EQHR路由协议比MM Speed、AODV协议在数据传输成功率、数据延时、网络剩余能量方面均有不同程度的提高.
As to some disruptive events in the heterogeneous sensor network, a QoS routing protocol is proposed （EQHR）. EQHR protocol consists of three phrases： In the first phrase, every node gets initial route table. In the second phrase, source node will find minimum-cost path among multiple disjoint paths. In the third phrase, data transmission and route maintenance are conducted for failure of route selection under the ACK confirmation mechanism. Simulation result shows that EQHR protocol can make some improvements for the ratio of successful data delivery, data delay and network residual energy, compared to MM Speed, or AODV protocol.
出处
《微电子学与计算机》
CSCD
北大核心
2012年第9期59-62,共4页
Microelectronics & Computer
基金
国家自然科学基金项目(61105057)
