상세정보
학술지
Adaptive MIMO decision feedback equalization for receivers with time-varying channels
- 저자
- 최지훈, 유희정, Yong H. Lee
- 발행일
- 200511
- 출처
- IEEE Transactions on Signal Processing, v.53 no.11, pp.4295-4303
- ISSN
- 1053-587X
- 출판사
- IEEE
- 협약과제
- 05MM1100, 4세대 이동통신 기술개발, 황승구
- 초록
- In an attempt to reduce the computational complexity of vertical Bell Labs layered space time (V-BLAST) processing with time-varying channels, an efficient adaptive receiver is developed based on the generalized decision feedback equalizer (GDFE) architecture. The proposed receiver updates the filter weight vectors and detection order using a recursive least squares (RLS)-based time- and order-update algorithm. The convergence of the algorithm is examined by analysis and simulation, and it is shown that the proposed adaptive technique is considerably simpler to implement than a V-BLAST processor with channel tracking, yet the performances are almost comparable. © 2005 IEEE.
- KSP 제안 키워드
- Adaptive receiver, Adaptive technique, Analysis and simulation, Channel Tracking, Computational complexity, Least Squares(LS), Recursive least squares, Space time(ST), Time-varying channels, Update algorithm, V-BLAST