Turbo coded MIMO multiplexing with iterative adaptive soft parallel interference cancellation

Author

Nakajima, Akinori ; Garg, Deepshikha ; Adachi, Fumiyuki

Author_Institution

Dept. of Electr. & Commun. Eng., Tohoku Univ., Japan

Volume

2

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

1410

Abstract

An iterative adaptive soft parallel interference canceller (ASPIC) is proposed for turbo coded multiple-input multiple-output (MIMO) multiplexing. ASPIC is applied to transform a MIMO channel into single-input multiple-output (SIMO) channels for maximum ratio diversity combining (MRC). In the iterative ASPIC, replicas of the interference from different transmit antennas are generated and subtracted from the received signals. The log-likelihood ratio (LLR) sequence, obtained as the turbo decoder output, is fed back for iterative interference cancellation. At the transmitter, the information bit sequences and parity bit sequences are transmitted from different antennas. The achievable bit error rate (BER) performance of turbo coded MIMO multiplexing with the proposed iterative ASPIC in a Rayleigh fading channel is evaluated by computer simulation.

Keywords

MIMO systems; Rayleigh channels; channel coding; data communication; diversity reception; error statistics; interference suppression; iterative methods; mobile radio; multiplexing; radiofrequency interference; turbo codes; BER; MRC; Rayleigh fading channel; bit error rate; channel coding; data transmissions; information bit sequences; iterative adaptive soft parallel interference cancellation; iterative interference cancellation; log-likelihood ratio sequence; maximum ratio combining; maximum ratio diversity combining; mobile communications; parity bit sequences; single-input multiple-output channels; transmit antennas; turbo coded MIMO multiplexing; turbo coded multiple-input multiple-output multiplexing; turbo coding; Bit error rate; Diversity reception; Interference cancellation; Iterative decoding; MIMO; Receiving antennas; Signal generators; Transmitters; Transmitting antennas; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1400256

Filename

1400256