A Topology Control Scheme for Selecting Active Nodes in Wireless Sensor Networks

Kyungjun KIM  Kijun HAN  

IEICE TRANSACTIONS on Communications   Vol.E92-B   No.12   pp.3915-3918
Publication Date: 2009/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E92.B.3915
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
topology control,  energy efficiency,  delay,  sensing holes,  sensor networks,  

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Power consumption is one of the most important factors in successfully designing of wireless sensor networks since it directly affects network lifetime. We propose a topology control scheme that reduces power consumption by minimizing, as much as possible, the number of active nodes, in a highly dense region as well as to decrease packet transmission delay. Simulation results show that our scheme can effectively solve the energy inefficiency problem caused by unbalanced power consumption, and can significantly reduce packet transmission delay.