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http://dx.doi.org/10.6109/jkiice.2008.12.2.336

Adaptive Power allocation inenergy-constrained wireless ad-hoc networks  

Gao, Xiang (한국기술교육대학교 정보기술공학부)
Park, Hyung-Kun (한국기술교육대학교 정보기술공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.12, no.2, 2008 , pp. 336-342 More about this Journal
Abstract
We proposed a simple power allocation scheme to maximize network lifetime for "amplify and forward(AF)" and "decode and forward(DF)". To maximize network lifetime, it is important to allocate power fairly among nodes in a network as well as to minimize total transmitted power. In the proposed scheme, the allocated power is proportional to the residual power and also satisfies the required SNR at destination node. In this paper, we calculate power allocation in model of AF and DF. We evaluated the proposed power allocation scheme using extensive simulation and simulation results show that proposed power allocation obtains much longer network lifetime than the equal power allocation.
Keywords
Index terms-cooperative diversity; relay network; network lifetime; adaptive power allocation;
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