대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

Fairness 제한이 있는 재생식 OFDMA 중계 네트워크에서의 적응적 중계기 선택 기법

Adaptive Relay Selection for Regenerative OFDMA Relay Networks with Fairness constraints

  • 정하린 (서울대학교 전기공학부, 뉴미디어통신공동연구소) ;
  • 이재홍 (서울대학교 전기공학부, 뉴미디어통신공동연구소)
  • Jeong, Ha-Rin (School of Electrical Engineering and INMC Seoul National University) ;
  • Lee, Jae-Hong (School of Electrical Engineering and INMC Seoul National University)
  • 발행 : 2008.06.18
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초록

We proposes an adaptive relay selection scheme for a regenerative (OFDMA) relay network with fairness constrains. The proposed scheme selects the best relays out of a set of potential relays to maximize system capacity. Among these selected relays, subcarriers are reallocated to satisfy fairness constraints as well as to minimize the decrease of the system capacity. The simulation results show that the proposed scheme achieves significant performance improvement over direct transmission and opportunistic relaying with OFDM (OR-OFDM).

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