An application-specific protocol architecture for wireless microsensor networks
An application-specific protocol architecture for wireless microsensor networks
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DOI：
10.1109/twc.2002.804190
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发表时间：
2002-10-01
影响因子：
10.4
通讯作者：
Balakrishnan, H
中科院分区：
文献类型：
--
作者：
Heinzelman, WB;Chandrakasan, AP;Balakrishnan, H
将成百上千个廉价的微型传感器节点连在一起，使用户能够通过智能地组合来自各个节点的数据来准确地监控远程环境。这些网络需要强大的无线通信协议，这些协议要节能并提供低延迟。本文提出并分析了一种适用于微传感器网络的低能量自适应分簇体系结构(LEACH)，它将基于能量高效的分簇路由和媒体访问的思想与特定于应用的数据聚合相结合，以在系统生命周期、延迟和应用感知质量方面获得良好的性能。LEACH包括能够自组织大量节点的新的分布式集群形成技术、用于适配集群和旋转簇头位置以在所有节点之间均匀分配能量负载的算法、以及使得能够进行分布式信号处理以节省通信资源的技术。结果表明，LEACH协议与通用的多跳协议相比，可将系统寿命提高一个数量级。
Networking together hundreds or thousands of cheap microsensor nodes allows users to accurately monitor a remote environment by intelligently combining the data from the individual nodes. These networks require robust wireless communication protocols that are energy efficient and provide low latency. In this paper, we develop and analyze low-energy adaptive clustering hierarchy (LEACH), a protocol architecture for microsensor networks that combines the ideas of energy-efficient cluster-based routing and media access together with application-specific data aggregation to achieve good performance in terms of system lifetime, latency, and application-perceived quality. LEACH includes a new, distributed cluster formation technique that enables self-organization of large numbers of nodes, algorithms for adapting clusters and rotating cluster head positions to evenly distribute the energy load among all the nodes, and techniques to enable distributed signal processing to save communication resources. Our results show that LEACH can improve system lifetime by an order of magnitude compared with general-purpose multihop approaches.