Title :
Design of space-time turbo trellis codes for two, three and four transmit antennas
Author :
Hong, Yi ; Yuan, Jinhong ; Vucetic, Branka ; Chen, Zhuo
Author_Institution :
Sch. of Elec. Eng. & Telecom, New South Wales Univ., Sydney, NSW, Australia
Abstract :
Optimum space-time turbo trellis codes (ST turbo TCs) with 4-PSK and 8-PSK for two, three and four transmit antennas on multi-input/multi-output (MIMO) fading channels are presented. The component codes of the turbo schemes are designed by choosing feedforward coefficients to maximize coding gain and feedback coefficients to minimize iterative decoding threshold. Performance comparison of ST turbo TCs with various memory orders, feedback coefficients, transmit antennas and interleaver structures is illustrated. For four transmit antennas, ST turbo TCs offer a gain of 3.75 dB over the one with two transmit antennas and is 2 dB better than the space-time trellis codes (STTCs) at an FER of 10-3 on slow Rayleigh fading channels.
Keywords :
MIMO systems; Rayleigh channels; antenna arrays; error statistics; feedback; feedforward; interleaved codes; iterative decoding; phase shift keying; space-time codes; transmitting antennas; trellis codes; turbo codes; 4-PSK; 8-PSK; MIMO fading channels; ST turbo TC; coding gain; component codes; feedback coefficients; feedforward coefficients; interleaver structures; iterative decoding threshold; memory order; multi-input/multi-output fading channels; optimum space-time turbo trellis codes; slow Rayleigh fading channels; space-time trellis codes; space-time turbo trellis codes design; transmit antennas; Australia; Convolutional codes; Fading; Feedback; Iterative decoding; MIMO; Rayleigh channels; Receiving antennas; Transmitting antennas; Turbo codes;
Conference_Titel :
Communication Systems, 2002. ICCS 2002. The 8th International Conference on
Print_ISBN :
0-7803-7510-6
DOI :
10.1109/ICCS.2002.1182466
