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Transmission Power Control Technique considering Shortest-Path in Wireless Sensor Networks  

Kim, Seon-Hwan (영남대학교 컴퓨터공학과 인공지능 및 지능정보시스템 연구실)
Park, Chang-Hyeon (영남대학교 컴퓨터공학과 인공지능 및 지능정보시스템 연구실)
Lee, Myung-Sup (영남이공대학교 컴퓨터정보계열)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.7B, 2009 , pp. 677-685 More about this Journal
Abstract
There are a number of studies that propose transmission power control algorithms in wireless sensor networks. However, these algorithms have a lot of overhead in the initialization phase since a number of packets have to be transmitted to determine the optimal transmission power level. This paper proposes the transmission power control technique considering the shortest-path to minimize the hop-count without the occurrence of any power control messages. We applied the proposed technique on tree-based network component implemented on TinyOS. And we evaluated the performance including transmission energy and average network depth with 21 motes. Compared to before, the proposed technique reduces about 24.7% of the average electric current on transmitting. As a result of considering the shortest-path, the hop-count considering the shortest-path was about 41% less than a normal network.
Keywords
Wireless Sensor Networks; Transmission Power Control; Tree-based Routing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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