The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Opportunistic Interference Management for Interfering Multiple-Access Channels

간섭 다중 접속 채널에서의 기회적 간섭 관리 기술

  • 신원용 (단국대학교 국제학부 모바일시스템공학전공) ;
  • 박도형 (The University of Texas at Austin 전자공학과)
  • Received : 2012.09.01
  • Accepted : 2012.10.22
  • Published : 2012.10.30
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Abstract

In this paper, we introduce three types of opportunistic interference management strategies in multi-cell uplink networks with time-invariant channel coefficients. First, we propose two types of opportunistic interference mitigation techniques, where each base station (BS) opportunistically selects a set of users who generate the minimum interference to the other BSs, and then their performance is analyzed in terms of degrees-of-freedom (DoF). Second, we propose a distributed opportunistic scheduling, where each BS opportunistically select a user using a scheduler designed based on two threshold, and then its performance is analyzed in terms of throughput scaling law. Finally, numerical evaluation is performed to verify our result.

본 논문에서는 시불변 채널 계수를 가지는 다중 셀 상향링크 네트워크에서 세 가지 종류의 기회적 간섭 관리 기술을 소개한다. 첫째, 각 기지국에서 다른 기지국에게 최소한의 간섭을 발생시키는 사용자 집합을 기회적으로 선택하는 두 가지 기회적 간섭 관리 완화 기술을 제안하고, 자유도 측면에서 성능을 분석한다. 둘째, 각 기지국에서 두 개의 임계값을 기반으로 설계된 스케줄러로 사용자를 기회적으로 선택하는 분산 기회적 스케줄링을 제안하고, 용량 스케일링 측면에서 성능을 분석한다. 마지막으로, 모의실험을 통해 제안하는 기술을 검증한다.

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References

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