摘要
针对移动传感器网络中传统的信标交换会引起通信暂盲的现象,在分析链路特性的基础上,提出了一种新型的自适应信标交换算法。在该算法中,工作节点依据不同的链路断开概率自适应地选择信标交换周期,空闲节点则基于链路寿命分布情况来选择固定的信标交换周期。仿真结果表明:该算法有效地减少了通信暂盲现象,并在控制开销、数据传送成功率这2个性能指标上都获得了明显的改善。
To address the problem of temporary communication blindness caused by traditional beacon exchange in mobile senor networks, a novel adaptive beacon exchange algorithm is proposed on the basis of the characteristics analysis of the link. The working node calculates variable beacon change period according to different link broken probability, and the idle node selects the beacon change period by the distribution of link lifetime. Simulation results demonstrate that the proposed algorithm effectively reduces the phenomenon of temporary communication blindness and greatly improves the performance in terms of transmission success rate and consumption.
出处
《传感器与微系统》
CSCD
北大核心
2011年第9期25-29,32,共6页
Transducer and Microsystem Technologies
基金
武器装备预研基金资助项目(9140A06050610JB15)
航空电子系统综合技术国防科技重点实验室和航空科学基金联合资助项目(20095596016)
陕西省自然科学基金资助项目(2009JM8010)
关键词
移动传感器网络
贪婪地理路由协议
信标交换算法
链路寿命分布
mobile sensor networks
greedy geographical routing protocol
beacon exchange algorithm
distribution of link lifetime
