Title :
Space-time trellis codes with linear transformation for fast fading channels
Author :
Li, Yonghui ; Vucetic, Branka ; Tang, Yang ; Zhang, Qishan
Author_Institution :
Sch. of Electr. & Inf. Eng., Univ. of Sydney, NSW, Australia
Abstract :
A space-time trellis code with linear transformation (STTC-LT) is presented. The upper bound on the pairwise error probability (PEP) is derived and a new design criterion is proposed. It is shown that the performance of STTC-LT over fast Rayleigh fading channels depends on the weighted square product distance (WSPD). Simulation results are provided for QPSK signal sets. They show that the proposed scheme is superior by about 8 dB and 10 dB to the conventional beamforming and Tarokh-Seshadri-Calderbank codes (TSC) at the bit error rate (BER) of 1.0e-4 over fast fading channels.
Keywords :
Rayleigh channels; channel coding; error statistics; quadrature phase shift keying; space-time codes; trellis codes; BER; PEP; QPSK signal; STTC-LT; WSPD; bit error rate; fast Rayleigh fading channel; linear transformation; pairwise error probability; quadrature phase shift keying; space-time trellis code; weighted square product distance; Array signal processing; Bit error rate; Convolutional codes; Decoding; Fading; Gaussian noise; Matrices; Receiving antennas; System performance; Transmitters;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2004.836960
