Construction of M-QAM STCC Based on QPSK STCC

Author

Rouchy, Christophe ; Sadjadpour, Hamid R.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Santa Cruz, CA

Volume

4

fYear

2006

fDate

14-19 May 2006

Abstract

Space-time convolutional code (STCC) is a technique that combines transmit diversity and coding to improve reliability in wireless fading channels. In this paper, we demonstrate a technique to design MQAM STCCs with high spectral efficiencies utilizing QPSK STCC as component code. The approach is based on a unique construction of M-QAM signal from several QPSK signals. The upper bound on the pairwise block error probability of the new scheme is derived. Simulation result demonstrates that the new technique outperforms existing M-QAM STCC design for M = 16

Keywords

channel coding; convolutional codes; diversity reception; error statistics; fading channels; modulation coding; quadrature amplitude modulation; quadrature phase shift keying; space-time codes; M-QAM STCC; QPSK STCC; pairwise block error probability; space-time convolutional code; transmit diversity; wireless fading channels; Convolutional codes; Diversity reception; Error probability; Fading; Quadrature phase shift keying; Receiving antennas; Space time codes; Transmitters; Transmitting antennas; Upper bound;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1660933

Filename

1660933