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Fair Relay Selection in Regenerative OFDMA Relay Network  

Jeong, Ha-Rin (KIS Pricing Inc.)
Kim, Jin-Su (Seoul National University)
Lee, Jae-Hong (Seoul National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.46, no.2, 2009 , pp. 11-17 More about this Journal
Abstract
This paper presents a new adaptive relay selection scheme for a regenerative orthogonal frequency division multiplexing access(OFDMA) relay network with fairness constrains. In the Proposed scheme, we select the best M relays out of a set of K potential relays to maximize system capacity. Among these selected relays, subcarriers are reallocated to satisfy fairness constraints as well as to minimize the degradation of the system performance. Afterwards, power allocation is performed for each subcarrier based on the water-filling method to enhance the performance improvement. By using the trade-off relationship between the system capacity and the fairness, the modified version of proposed scheme is also investigated.
Keywords
중계기 선택;페이딩 채널;직교 주파수 분할 다중 접속;공평성;재생 중계 네트워크;
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