Using LQI to improve clusterhead locations in dense zigbee based wireless sensor networks
作者： Cherif Diallo , Michel Marot , Monique Becker
DOI: 10.1109/WIMOB.2010.5644979
关键词: Cluster analysis 、 Network performance 、 Global Positioning System 、 Context (language use) 、 GPS signals 、 Base station 、 Distributed computing 、 Computer science 、 Routing (electronic design automation) 、 Wireless sensor network
摘要: In WSN, it is not often desirable to use the GPS technology. Indeed, of expensive and may reduce overall network performance. Moreover, indoor reception signal possible. The Link Quality Indicator (LQI) defined in 802.15.4 standard, but its context specified this standard. Some works on LQI, few which are field experiments, have shown that LQI decreases as distance increases. However, challenge clustering mechanisms form smallest number clusters by maximizing distances separating cluster heads provide an efficient cover also minimizes overlaps. This reduces amount channel contention between clusters, improves efficiency algorithms run at level heads. Therefore we propose analytical model based order derive optimally one-dominating set smaller two improved.
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