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http://dx.doi.org/10.3745/KIPSTC.2006.13C.2.185

Power-and-Bandwidth Efficient Cooperative Transmission Protocol in Wireless Sensor Networks  

Khuong Ho Van (울산대학교 전기전자정보시스템공학부)
Kong Hyung-Yun (울산대학교 전기전자정보시스템공학부)
Choi Jeong-Ho (울산대학교 전기전자정보시스템공학부)
Jeong Hwi-Jae (울산대학교 전기전자정보시스템공학부)
Publication Information
The KIPS Transactions:PartC / v.13C, no.2, 2006 , pp. 185-194 More about this Journal
Abstract
In this paper, we first propose a power-and-bandwidth efficient cooperative transmission protocol where a sensor node assists two others for their data transmission to a clusterhead in WSNs (Wireless Sensor Networks) using LEACH (Low-Energy Adaptive Clustering Hierarchy). Then we derive its closed-form BER expression which Is also a general BER one for the decode-and-forward protocol (DF) and Prove that the proposed protocol performs as same as the conventional DF but obtains higher spectral efficiency. A variety of numerical results reveal the cooperation can save the network power up to 11dB over direct transmission at BER of $10^{-3}$.
Keywords
DF; LEACH; Cooperative Transmission; WSN;
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