Proceedings of the Korean Institute of Information and Commucation Sciences Conference (한국정보통신학회:학술대회논문집)
- 2007.10a
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- Pages.795-798
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- 2007
Adaptive Power Allocation in Cooperative Relay Networks
- Gao, Xiang (Korea University of Technology and Education) ;
- Park, Hyung-Kun (Korea University of Technology and Education)
- Published : 2007.10.26
Abstract
In this paper, we proposed a simple power allocation scheme to maximize network lifetime. 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 "amplify and forward" (AF) model. 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.