具有能量补给的无线传感器网络能量感知路由算法.doc

具有能量补给的无线传感器网络能量感知路由算法
马颖1,祁浩2,樊维涛3
(,西安 710032;
;)
摘要:为适应新能源条件下的无线传感器网络的能量补给特点,根据节点自身能量起伏变化和能量补给的速率等特点,提出了一种考虑到能量补给因素的无线传感器网络能量感知路由算法—PHEA。PHEA将传感器节点从周围环境中获取能量的因素考虑进路由算法中,并使用信息融合D-S证据理论算法来选择下一跳节点,使得能量消耗能够平均分配到整个网络中。仿真结果表明,改进的算法考虑了能量补给因素的条件下改善了无线传感器网络中的能量消耗的均衡特性,延长了网络的生命周期,与经典能量感知路由算法EA相比,PHEA的性能高约50%左右。
关键词:无线传感器网络,能量补给,路由算法,能量感知
中图号: 文献标志码:A
Energy Aware Algorithm for Wireless works
with Power harvesting
Abstract: To adapt to the energy supply characteristics of wireless work(WSN) under new energy conditions, according to node energy fluctuation and energy supply velocity, A new routing algorithm based on energy supply, named Power-Harvesting Energy Aware(PHEA) is proposed. Energy obtained by sensor nodes in environment is considered, and Dempster-Shafer algorithm for information fusion is used to select the next-hop node, so energy consumption can be average distributed throughout work. The simulation result shows that our algorithm improves the equilibrium characteristics of energy consumption in WSN by considering energy supply factors, extends work life cycle. Compared to EA, the classic energy perception routing algorithm, PHEA has about 50% better performance.
Key words: wireless works; power harvesting; routing algorithm; energy aware.
引言
无线传感器网络(Wireless work, WSN)是由部署在检测区域内大量的廉价的微型传感器节点组成、通过无线通信方式形成的