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상호 간섭 Broadcast 채널을 위한 MIMO 간섭 정렬을 이용한 복잡도를 줄인 스케쥴링Reduced Complexity Scheduling Method with MIMO Interference Alignment for Mutually Interfering Broadcast Channels
- Other Titles
- Reduced Complexity Scheduling Method with MIMO Interference Alignment for Mutually Interfering Broadcast Channels
- Issue Date
- 2012
- Publisher
- 한국통신학회
- Keywords
- multiple-input multiple-output (MIMO); interference alignment (IA); spatial multiplexing gain; scheduling; broadcast channel
- Citation
- 한국통신학회논문지, v.37, no.8, pp.601 - 611
- Indexed
- KCI
- Journal Title
- 한국통신학회논문지
- Volume
- 37
- Number
- 8
- Start Page
- 601
- End Page
- 611
- ISSN
- 1226-4717
- Abstract
- In this paper, we first study the spatial multiplexing gain for the 3-cell interfering broadcast channels (IFBC)where all base stations and mobile users are equipped with multiple antennas. Then, we present the IA scheme in conjunction with user selection which outperforms the TDMA technique in the IFBC environment. The optimal scheduling method utilizes multiuser diversity to achieve a significant fraction of sum capacity by using an exhaustive search algorithm. To reduce the computational complexity, a suboptimal scheduling method is proposed based on a coordinate ascent approach.
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