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In this paper, the authors propose a new resource allocation scheme for an OFDMA relay network with multicells. In the proposed scheme, by sharing the Channel State Information (CSI) between base stations, resources are allocated to users and relays to maximize the overall sum of the achievable rate under fairness constraints. Simulation results show that the proposed scheme achieves higher spectral efficiency per subcarrier than the static scheme and reduces the outage probability compared to the static and greedy schemes.
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