An improved V-BLAST receiver based on reliability normalization

Author

Kim, Hyounkuk ; Park, Hyuncheol

Author_Institution

Sch. of Eng., Inf. & Commun. Univ., Daejeon, South Korea

Volume

3

fYear

2004

Firstpage

1565

Abstract

We present an improved V-BLAST receiver that cancels co-channel interference (CCI), based on reliability normalization over frequency-selective channels, in the log-likelihood ratio (LLR) sense. The performance has been evaluated in the exponential decay channel model with various normalized rms delay spreads and different filter taps. It is also compared with the ordered successive interference cancellation-decision feedback equalizer (OSIC-DFE). Simulation results show that the proposed receiver outperforms the OSIC-DFE, especially when the filter taps are short.

Keywords

MIMO systems; cochannel interference; covariance matrices; decision feedback equalisers; diversity reception; fading channels; interference suppression; radio receivers; space division multiplexing; space-time adaptive processing; CCI; MIMO-DFE; OSIC-DFE; V-BLAST receiver; auto-covariance matrix; co-channel interference cancellation; delay spread; exponential decay channel model; fading channels; feedback filters; feedforward filters; filter taps; frequency-selective channels; log-likelihood ratio; ordered successive interference cancellation-decision feedback equalizer; receive diversity gain; reliability normalization; spatial multiplexing gain; Decision feedback equalizers; Diversity methods; Finite impulse response filter; Frequency; Interchannel interference; Interference cancellation; Radiofrequency interference; Receiving antennas; Transmitters; Transmitting antennas;

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.2004.1400297

Filename

1400297