A bandwidth-efficient cooperative relaying scheme with space-time block coding and iterative decoding

Ho V.K., Le-Ngoc T.
Telecommunications Department, HoChiMinh City University of Technology, Viet Nam; Department of Electrical and Computer Engineering, McGill University, Canada

Abstract: We propose a coded cooperative relaying scheme in which only newly generated parity bits of users are multiplexed, space-time block coded, and forwarded simultaneously by a multi-antenna relay to a common multiantenna destination if the relay successfully decodes their information in order to improve bandwidth efficiency. Multiplexing introduces correlation between users' data, which offers effectively longer codes and facilitates high-performance iterative multi-user decoding at the destination. Additionally, space time block coding makes bit-metrics calculation simple and increases spatial diversity of the received signal. Simulation results show that the proposed scheme significantly outperforms direct transmission under the same transmit power and bandwidth efficiency. ©2008 IEEE.
Author Keywords: Cooperative relaying; Iterative decoding; Multiple-antenna relay; Space time block codes
Index Keywords: Bandwidth; Block codes; Multiplexing; Programming theory; Relay control systems; Telecommunication systems; Turbo codes; Bandwidth Efficiency; Cooperative relaying; Multiple-antenna relay; Space time block codes; Space-Time Block coding; Iterative decoding

Year: 2008
Source title: HUT-ICCE 2008 - 2nd International Conference on Communications and Electronics
Art. No.: 4578969
Page : 262-267
Link: Scorpus Link
Authors with affiliations:

1. Ho, V.K., Telecommunications Department, HoChiMinh City University of Technology, Viet Nam
2. Le-Ngoc, T., Department of Electrical and Computer Engineering, McGill University, Canada

Correspondence Address: Ho, V. K.; Telecommunications Department, HoChiMinh City University of TechnologyViet Nam; email: khuong.hovan@mcgill.ca
Download Abstract: HCM_U236.pdf