Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Cooperative Opportunistic Beamforming for OCI Mitigation in Correlated Multi-User MISO Cellular System

채널 상관도가 존재하는 다중 사용자 MISO 환경에서 인접 셀 간섭 제거를 위한 협력 기회적 빔포밍 기법

  • Cho, Hee-Nam (School of Electrical Engineering and INMC Seoul National University) ;
  • Lee, Jin-Woo (School of Electrical Engineering and INMC Seoul National University) ;
  • Lee, Yong-Hwan (School of Electrical Engineering and INMC Seoul National University)
  • 조희남 (서울대학교 전기컴퓨터공학부) ;
  • 이진우 (서울대학교 전기컴퓨터공학부) ;
  • 이용환 (서울대학교 전기컴퓨터공학부)
  • Published : 2008.06.18
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Abstract

We consider cooperative opportunistic beamforming that can mitigate the other cell interference (OCI) in correlated multi-user multiple-input single-output (MISO) cellular environments. By only exploiting the spatial channel information of adjacent cells, the proposed scheme generates the cooperative random beam that statistically avoids the OCI from adjacent cells. Each cell selects a user in an opportunistic manner. Thus, the proposed scheme can simultaneously achieve the multi-user diversity (MUD) gain and the OCI avoidance gain.

Keywords