EURASIP Journal on Applied Signal Processing
Volume 2002 (2002), Issue 5, Pages 459-470
doi:10.1155/S1110865702203108
Space-Time Turbo Trellis Coded Modulation for Wireless Data Communications
1School of Electrical and Information Engineering, The University of Sydney, Sydney 2006, Australia
2School of Electrical Engineering and Telecommunications, The University of New South Wales, Sydney, NSW 2052, Australia
Received 1 June 2001; Revised 22 March 2002
Copyright © 2002 Welly Firmanto et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This paper presents the design of space-time turbo trellis coded modulation (ST turbo TCM) for improving the bandwidth efficiency and the reliability of future wireless data networks. We present new recursive space-time trellis coded modulation (STTC) which outperform feedforward STTC proposed in by Tarokh et al. (1998) and Baro et al. (2000) on slow and fast fading channels. A substantial improvement in performance can be obtained by constructing ST turbo TCM which consists of concatenated recursive STTC, decoded by iterative decoding algorithm. The proposed recursive STTC are used as constituent codes in this scheme. They have been designed to satisfy the design criteria for STTC on slow and fast fading channels, derived for systems with the product of transmit and receive antennas larger than 3. The proposed ST turbo TCM significantly outperforms the best known STTC on both slow and fast fading channels. The capacity of this scheme on fast fading channels is less than 3 dB away from the theoretical capacity bound for multi-input multi-output (MIMO) channels.