A distributed clustering algorithm for wireless sensor networks |
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Authors: | Fengjun Shang |
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Institution: | College of Computer Science and Technology, ChongqingUniversity of Posts and Telecommunications, Chongqing 400065,China |
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Abstract: | In the paper, we consider a network of energy constrained sensors deployed over a region. Each sensor node in such a network
is systematically gathering and transmitting sensed data to a base station (via clusterhead) for further processing. The key
problem focuses on how to reduce the power consumption of wireless microsensor networks. The core includes the energy efficiency
of clusterheads and that of cluster members. We first extend low-energy adaptive clustering hierarchy (LEACH)’s stochastic
clusterhead selection algorithm by a factor with distance-based deterministic component (LEACH-D) to reduce energy consumption
for energy efficiency of clusterhead. And the cost function is proposed so that it balances the energy consumption of nodes
for energy efficiency of cluster member. Simulation results show that our modified scheme can extend the network life around
up to 40% before first node dies. Through both theoretical analysis and numerical results, it is shown that the proposed algorithm
achieves better performance than the existing representative methods.
Biography: SHANG Fengjun (1972–), male, Associate professor, Ph.D., research direction: wireless sensor network, WiMAX. |
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Keywords: | data aggregation wireless microsensor networks low-energy adaptive clustering hierarchy (LEACH) clusterhead selection |
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