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학술대회 Optimal Detection Considering AGC Effects in Multiple Antenna Systems
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저자
김명순, 조권도, 김진업
발행일
200804
출처
International Symposium on Consumer Electronics (ISCE) 2008, pp.1-4
DOI
https://dx.doi.org/10.1109/ISCE.2008.4559562
협약과제
07MM1300, 4세대 이동통신용 적응 무선접속 및 전송 기술개발, 김진업
초록
Most detection methods for multiple input multiple output (MIMO) systems are derived with an assumption that the noise from multiple receive paths is white. However, This assumption cannot be valid according to automatic gain control (AGC) schemes. If the independent AGC scheme which has difference gain for each receive path to minimize the quantization noise is employed, the AGC output noise is not white any more. Therefore, the colored noise effects due to AGC should be considered for the optimal detection. In detail, such colored noise effects should be included in the maximum likelihood (ML) detection criterion and the log likelihood ratio (LLR) calculation.
키워드
AGC, MIMO detection, ML detection
KSP 제안 키워드
AGC scheme, Automatic Gain Control(AGC), Colored Noise, Detection Method, MIMO detection, Maximum likelihood (ML) detection, Multiple antenna system, Noise Effects, Optimal detection, Quantization Noise, distributed antenna systems(DAS)