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http://dx.doi.org/10.12673/jkoni.2012.16.6.960

LQI Standard Deviation Routing Algorithm for Energy Loss Reduction in Wireless Sensor Networks  

Shin, Hyun-Jun (Korea of University Technology and Education, Dept. of Electrical, Electronics & Communication Eng.)
Oh, Chang-Heon (Korea of University Technology and Education, Dept. of Electrical, Electronics & Communication Eng.)
Publication Information
Journal of Advanced Navigation Technology / v.16, no.6, 2012 , pp. 960-967 More about this Journal
Abstract
Wireless sensor network is used at the environment to obtain nearby information and since such information is transferred through wireless link, it causes unnecessary re-sending and disadvantage of big energy consumption at node. Because of this to select reliable, energy effective link, method of estimating quality on wireless link using RSSI(received signal strength indication), LQI(link quality indication), etc is needed on wireless link. To set up path extending survival time by reducing energy consumption of nodes at the wireless sensor network, the thesis selects with small standard deviation of LQI after obtaining LQI within each path. Additionally, LQI standard deviation routing algorithm is compared based on LQI algorithm such as minimum-LQI, hop-LQI weight and RF output -7dBm. According to the outcome, the algorithm suggested has superior characters such as the number of node, retransmission rate and network life span respectively compared to existing algorithm. Therefore, energy consumption can be efficiently reduced in case that LQI standard deviation routing scheme suggested by this paper is adapted to wireless sensor network.
Keywords
LQI; Routing; Standard Deviation; Hop Count; Wireless Sensor Networks;
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Times Cited By KSCI : 1  (Citation Analysis)
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