Wendi Heinzelman, Anantha Chandrakasan, Hari Balakrishnan
International Conference on System Sciences, Maui, HI, January 2000
Wireless distributed microsensor systems will enable the reliable monitoring
of a variety of environments for both civil and military applications.
In this paper, we look at communication protocols, which can have significant
impact on the overall energy dissipation of these networks. Based on our
findings that the conventional protocols of direct transmission, minimum-transmission-energy,
multi-hop routing, and static clustering may not be optimal for sensor
networks, we propose LEACH (Low Energy Adaptive Clustering Hierarchy),
a clustering-based protocol that utilizes randomized rotation of local
cluster base stations (cluster-heads) to evenly distribute the energy load
among the sensors in the network. LEACH uses localized coordination to
enable scalability and robustness for dynamic networks, and incorporates
data fusion into the routing protocol to reduce the amount of information
that must be transmitted to the base station. Simulations show that LEACH
can achieve as much as a factor of 8 reduction in energy dissipation compared
with conventional routing protocols. In addition, LEACH is able to distribute
energy dissipation evenly throughout the sensors, doubling the useful system
lifetime for the networks we simulated.
[PostScript (1327KB)] [Gzipped PostScript (246KB)]
Bibtex Entry:
@inproceedings{heinzelman2000energy-efficient,
author = "Wendi Heinzelman and Anantha Chandrakasan and Hari Balakrishnan",
title = "{Energy-efficient Communication Protocols for Wireless Microsensor Networks}",
booktitle = { International Conference on System Sciences},
year = {2000},
month = {January},
address = {Maui, HI}
}