能量高效的无线传感器网络可靠转发协议

计算机应用 ›› 2011, Vol. 31 ›› Issue (01): 202-207.

能量高效的无线传感器网络可靠转发协议

李玉凯¹,白焰²,高喜奎³,郑源滨²,王仁书²

1. 华北电力大学自动化系
2. 华北电力大学
3. 华北电力大学控制与计算机工程学院

收稿日期:2010-06-04 修回日期:2010-07-23 发布日期:2011-01-12 出版日期:2011-01-01
通讯作者: 高喜奎
基金资助:
北京市教育委员会学科建设与研究生教育建设项目资助

Energy efficient reliable delivery protocol for wireless sensor networks

Received:2010-06-04 Revised:2010-07-23 Online:2011-01-12 Published:2011-01-01

摘要/Abstract

摘要： 为了在链路质量不可靠的无线传感器网络(WSN)中提高数据传输的能效，提出一种基于模糊综合评判的WSN可靠转发协议FiaRD。FiaRD利用WSN节点部署稠密的特点和无线信道的广播特性，使传输路径上相互邻近的节点自发组织成多跳簇，进而通过各个簇成员间的协作转发来提高数据传输的可靠性和能效。每跳簇是通过分布式“模糊综合评判”与“回退竞争”相结合的机制动态选出的，此机制在对多个候选簇进行综合评判的基础上，能从中筛选出少数较优的来参与下一跳的竞争，从而降低簇间的碰撞概率，提高转发效率。仿真结果表明，FiaRD在保证可靠传输的同时，具有较低的传输能耗。

关键词: 无线传感器网络, 协作簇, 模糊综合评判, 回退竞争

Abstract: A fuzzy integrated assessment based reliable forwarding mechanism (FiaRD) is proposed to enhance transmission efficiency in the wireless sensor network(WSN) featured by unreliable link quality. Utilizing characteristic of dense deployment of sensor nodes and broadcast feature of the wireless channel, FiaRD enables multihop clusters to be self-organized by the neighboring nodes along transmission path and then leverages the collaborative forwarding among cluster members to enhance delivery ratio and to reduce energy consumption induced by redundant transmission. In FiaRD, forwarding cluster at each hop is dynamically elected through distributed “fuzzy integrated assessment” combined with “back-off competition”. In the mechanism, a minority of superior clusters is selected from several nexthop forwarding candidate clusters to compete for forwarding based on integrated assessment for the sake of lower collision probability and higher forwarding efficiency. Simulation result have corroborated FiaRD can effectively reduce the transmission energy consumption while ensuring the reliable transmission

Key words: wireless sensor network, collaboration cluster, fuzzy integrated assessment, back-off competition

李玉凯白焰高喜奎郑源滨王仁书. 能量高效的无线传感器网络可靠转发协议[J]. 计算机应用, 2011, 31(01): 202-207.

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