Title :
Space-time trellis codes with linear precoding for transmit beamforming
Author :
Li, Yonghui ; Tang, Yang ; Vucetic, Branka
Author_Institution :
Sch. of Electr. & Inf. Eng., Sydney Univ., NSW
Abstract :
A space time trellis coding scheme with linear precoding (STTC-LP) for transmit beamforming is presented in this paper. The upper bounds on pairwise error probability (PEP) over quasi-static and fast fading channels are derived, and new design criteria are proposed. It is shown that STTC-LP can achieve not only the maximum received SNR but also a significant coding gain. Based on the design criteria the optimum 4-state codes are derived by the systematic code search. Simulation results show that the new 4-state STTC-LP is superior by about 1.5 dB and 4.0 dB at the FER of 1.0e-2 over quasi-static fading channels, and by about 8 dB and 10 dB at the BER of 1.0e-4 over fast fading channels, to the beamforming and Tarokh-Seshadri-Calderbank (TSC) codes, respectively
Keywords :
antenna arrays; array signal processing; channel coding; error statistics; fading channels; linear codes; precoding; space-time codes; transmitting antennas; trellis codes; BER; PEP; STTC-LP system; bit error rate; linear precoding; optimum 4-state code; pairwise error probability; quasistatic fading channel; space time trellis coding scheme; systematic code search; transmit beamforming; Array signal processing; Australia; Convolutional codes; Decoding; Fading; Matrices; Matrix decomposition; Receiving antennas; System performance; Transmitters; Beamforming; Precoding; Space time trellis codes;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on
Conference_Location :
Berlin
Print_ISBN :
9.7838007291e+012
DOI :
10.1109/PIMRC.2005.1651885
