Title :
Iterative Detection and Decoding with an Improved V-BLAST for MIMO-OFDM systems
Author :
Lee, Heunchul ; Lee, Byeongsi ; Lee, Inkyu
Author_Institution :
School of Electrical Engineering, Korea University, Seoul, Korea. Email: heunchul@wireless.korea.ac.kr
Abstract :
This paper proposes an improved vertical Bell Labs Layered Space-Time (V-BLAST) with iterative detection and decoding (IDD) scheme for coded layered space-time architectures in MIMO-OFDM systems. For the iterative process, a low-complexity demapper is developed by making use of both nonlinear interference cancellation and linear filtering. Also a simple cancellation method based on hard decision is presented to reduce the overall complexity. Simulation results demonstrate that the proposed V-BLAST with IDD scheme offers the performance close to the optimal turbo-MIMO approach, while providing tremendous savings in computational complexity.
Keywords :
AWGN; Bit rate; Channel coding; Computational complexity; Detectors; Error compensation; Interference cancellation; Iterative decoding; MIMO; OFDM; Iterative detection and decoding; MIMOsystems; OFDM; V-BLAST;
Conference_Titel :
Communications, 2006. ICC '06. IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
1-4244-0355-3
Electronic_ISBN :
8164-9547
DOI :
10.1109/ICC.2006.255516