An application-specific protocol architecture for wireless microsensor networks

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...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2002-10, Vol.1 (4), p.660-670
Main Authors: Heinzelman, W.B., Chandrakasan, A.P., Balakrishnan, H.
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Access protocols
Adaptive systems
Agglomeration
Algorithms
Applied sciences
Architecture
Clusters
Delay
Energy efficiency
Exact sciences and technology
Intelligent networks
Microsensors
Monitors
Networks
Remote monitoring
Robustness
Signal processing algorithms
Studies
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Wireless application protocol
Wireless communication
Wireless communications
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Summary: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. 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.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2002.804190