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A semi-distributed power allocation for the cooperative relay in OFDMA network

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5 Author(s)
Lu Zechun ; School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, 100876, China ; Zhao Zhenmin ; Wen Xiangming ; Sun Yong
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In this paper we propose a semi-distributed power allocation algorithm(S-DPA) in the downlink of cellular OFDMA-relay network. This algorithm introduces non-cooperative game theory in the second time subslot for relays and TS algorithm in the first time subslot for base stations. TS algorithm can match the data rate of two-hop links for each relay. Simulation results show that compared with equal power allocation algorithm, this algorithm not only improves the average throughput, but also reduces system energy consumption.

Published in:

Communication Technology (ICCT), 2011 IEEE 13th International Conference on

Date of Conference:

25-28 Sept. 2011