Dynamic resource allocation in relay‐assisted OFDMA cellular system
Bin Da, Chi Chung Ko · Transactions on Emerging Telecommunications Technologies · 2011
ABSTRACT This study investigates a relay‐assisted orthogonal frequency division multiple access cellular system with joint consideration of direct and relaying paths. In this system, a novel implementation adopting full‐duplex relaying is proposed for joint relay‐destination selection, subcarrier and power allocation. This new implementation can be shown to significantly improve spectrum efficiency as compared with the conventional half‐duplex relaying orthogonal frequency division multiple access. In addition, the proposed scheme enables flexible controllability on the tradeoff between system capacity and user fairness. Copyright © 2011 John Wiley & Sons, Ltd.