分布式无线传感器网络分簇机制的研究
首发时间:2010-05-06
摘要:本文通过对无线传感器网络分簇协议的分析和研究,提出了基于相对距离的无线传感器网络分簇算法(RDCS),从而大幅度提高了无线传感器网络的健壮性和可用性。在该算法的簇首选择阶段,我们将节点与基站的相对距离因素和节点剩余能量因素作为簇首选择的重要指标加以考虑,从而有效地降低无线传感器网络的能量消耗。实验结果显示在RDCS算法下无线传感器网络可以通过选择合适的簇首而获得更长的网络存活时间和更高的能量使用效率。
关键词: 无线传感器网络 分簇算法 分布式 能量效率 存活时间
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Distributed Clustering Scheme in Wireless Sensor Network
Abstract:Energy efficiency is of great importance for the wireless sensor network (WSN). A popular way to save energy is to construct clusters for data aggregation and forwarding. This paper studies the distributed cluster algorithm to improve the energy consumption efficiency. We observe that the cluster head has to lie within the transmission range of the base station and the distance between cluster head and base station is critical for the energy consumption performance, we propose a relative distance based clustering scheme (RDCS), which considers the relative distance to the base station and the residual energy level during the cluster head selection stage. Consequently we could better balance the chance of being cluster head for all nodes. Simulation results show that our scheme is able to result in longer network lifetime than the well-known protocol LEACH
Keywords: cluster distrbuted energy lifetime wireless sensors networks
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