Resource Allocation for an OFDMA Relay Network with Multicells

Dongwook CHOI  Dongwoo LEE  Jae Hong LEE  

Publication
IEICE TRANSACTIONS on Communications   Vol.E93-B   No.5   pp.1293-1297
Publication Date: 2010/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.1293
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
cooperative communication,  OFDMA,  fairness,  resource allocation,  

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Summary: 
In this paper, we propose a new subcarrier allocation algorithm for a downlink OFDMA relay network with multicells. In the proposed algorithm, subcarriers are allocated to users and relays to maximize the overall sum of the achievable rate under fairness constraints. Simulation results show that the proposed algorithm achieves higher data rate than the static algorithm and reduces the outage probability compared to the static and greedy algorithms.