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http://dx.doi.org/10.5515/JKIEES.2009.9.3.111

Exact BER Expression of 2-1-1 Relaying Scheme in Wireless Sensor Networks  

Kong, Hyung-Yun (Department of Electrical Engineering, University of Ulsan)
Publication Information
Journal of electromagnetic engineering and science / v.9, no.3, 2009 , pp. 111-117 More about this Journal
Abstract
This paper presents an energy-efficient and bandwidth-efficient 2-1-1 relaying scheme in which a sensor node(SN) assists two others in their data transmission to a clusterhead in WSNs(Wireless Sensor Networks) using LEACH (Low-Energy Adaptive Clustering Hierarchy). We derive the closed-form BER expression of this scheme which is also a general BER one for the decode-and-forward cooperative protocol and prove that the proposed scheme performs the same as the conventional relaying scheme but obtains higher channel utilization efficiency. A variety of numerical results reveal the relaying can save the network energy up to 11 dB over single-hop transmission at BER of $10^{-3}$.
Keywords
LEACH; Relaying Scheme; WSN;
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Times Cited By KSCI : 1  (Citation Analysis)
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