[1]CHEN Zhen-yan,LIU Gui-xi.An improved LEACH algorithm based on mobile sensor nodes[J].CAAI Transactions on Intelligent Systems,2008,3(2):140-144.
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An improved LEACH algorithm based on mobile sensor nodes

CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume: 3 Number of periods: 2008 2 Page number: 140-144 Column: 学术论文—人工智能基础 Public date: 2008-04-25
Title:
An improved LEACH algorithm based on mobile sensor nodes
Author(s):
CHEN Zhen-yan;  LIU Gui-xi
Department of Automation, Xidian University, Xi’an 710071, Ch ina
Keywords:
wireless sensor network;  clusters;  mobile nodes;  network life time
CLC:
TP393
DOI:
-
Abstract:
The lowenergy adaptive clustering hierarchy (LEACH) is an energyefficient protocol that maximizes network lifetime, but its cluster range is unstable and there can be disturbances between clusters in the network setup process. This paper presents an improved LEACH algorithm based on mobile cluster heads. With the algorithm, sensor nodes broadcast cluster updates and confine cluster range to a set radius so as to reduce disturbances between cluster heads. As clusters lose energy or become unbalanced after a period of network operation, mobile sensors are added to clusters and promoted to cluster head in order to prolong the network survival time. Experimental results and analysis indicated that the performance of the new method is far better than basic LEACH.
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