Adaptive Resource Allocation for a Two-Way OFDM Relay Network with Fairness Constraints

Yookeun KANG  Dongwoo LEE  Jae Hong LEE  

IEICE TRANSACTIONS on Communications   Vol.E94-B    No.6    pp.1765-1769
Publication Date: 2011/06/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.1765
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
two-way,  OFDM,  resource allocation,  fairness,  

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In this letter, we propose a new resource allocation scheme for a two-way OFDM relay network with fairness constraints. To maximize sum capacity, subcarriers and their power are successively allocated to the relays based on channel conditions. Also, the power constraint is imposed on each relay to achieve fairness for the relays. Simulation results show that the proposed scheme improves sum capacity and fairness significantly.