Systematic design of Space-Time convolutional codes

Author

Rouchy, Christophe ; Sadjadpour, Hamid R.

Author_Institution

Dept. of Electr. Eng., Univ. of California at Santa Cruz, Santa Cruz, CA

fYear

2008

fDate

26-29 Oct. 2008

Firstpage

1768

Lastpage

1771

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 systematic design of M-QAM STCCs utilizing QPSK STCC as component codes for any number of transmit antennas.Moreover, our low complexity decoding algorithm allows the decoding complexity to increase linearly by the number of transmit antennas. Our method uses a group interference cancellation technique also known as combined array processing (CAP) technique. Simulation result demonstrates that the new CAP technique outperforms the CAP de..ned by [1] by 0.8 dB for a frame error rate (FER) of 10^-2 and is 1.2 dB away from our new proposed M-QAM STCC design whenM=16.

Keywords

array signal processing; convolutional codes; fading channels; signal reconstruction; space-time codes; transmitting antennas; combined array processing; frame error rate; group interference cancellation technique; space-time convolutional codes; transmit antennas; transmit diversity; wireless fading channels; Array signal processing; Convolutional codes; Decoding; Diversity reception; Equations; MIMO; Quadrature phase shift keying; Receiving antennas; Transmitting antennas; Wireless communication; Diversity; Multiple Transmit Antennas; Space Time Codes; Wireless Communications;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2008 42nd Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2940-0

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2008.5074730

Filename

5074730