상세정보
학술대회
Optimal Detection Considering AGC Effects in Multiple Antenna Systems
- 발행일
- 200804
- 출처
- International Symposium on Consumer Electronics (ISCE) 2008, pp.1-4
- 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.
- KSP 제안 키워드
- AGC scheme, Automatic Gain Control(AGC), Colored Noise, Detection Method, Maximum likelihood (ML) detection, Multiple antenna system, Noise Effects, Optimal detection, Quantization Noise, distributed antenna systems(DAS), log likelihood ratio(LLR)