Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Interference Mitigating Power Allocation Scheme for DL-MAP Information in IEEE802.16e-based Multi-cell OFDMA Systems

IEEE802.16e 기반 다중셀 OFDMA시스템에서의 하향링크 MAP정보에 대한 간섭최소화 전력할당기법

  • Seo, Jeong-Yeon (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Kang, Ji-Won (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Lee, Chung-Yong (Department of Electrical and Electronic Engineering Yonsei University)
  • 서정연 (연세대학교 전기전자공학과) ;
  • 강지원 (연세대학교 전기전자공학과) ;
  • 이충용 (연세대학교 전기전자공학과)
  • Published : 2008.06.18
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Abstract

IEEE802.16e-based OFDMA system called WiBro is being serviced commercially. In WiBro system, the base station sends downlink(DL)-MAP information to all mobile stations in each cell. The DL-MAP information is repeated six times, modulated by QPSK, and coded by Convolutional Turbo Coding(CTC) with 1/2 code rate [1],[2]. As the number of mobile stations increases, the DL-MAP size also increases. In this paper, We investigate methods of power allocation and interference cancelation to reduce overhead of the DL-MAP.

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