Resource Allocation with Fairness Consideration in OFDMA-Based Relay Networks

  title={Resource Allocation with Fairness Consideration in OFDMA-Based Relay Networks},
  author={Zhihua Tang and Guo Wei},
  journal={2009 IEEE Wireless Communications and Networking Conference},
This paper considers a broadband cellular orthogonal frequency division multiple access (OFDMA) system with relay nodes operating in decode-and-forward (DF) mode. An optimization problem for relay selection, subcarrier assignment and power allocation that maximizes the downlink capacity with fairness consideration among users is formulated for such a system. Since the problem cannot be solved easily in direct forms, we make continuous relaxation and solve the dual problem of the relaxed problem… CONTINUE READING
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