Iterative Joint Channel Estimation and Multiuser Detection for Wireless MIMO-OFDM Systems: Performance in a Real Indoor Scenario

Author

Rossi, Pierluigi Salvo ; Pakniat, Parisa ; Müller, Ralf R. ; Edfors, Ove

Author_Institution

Norwegian Univ. of Sci. & Technol., Trondheim

fYear

2007

fDate

17-19 Oct. 2007

Firstpage

772

Lastpage

776

Abstract

An iterative receiver for multiple-input multiple- output (MIMO) orthogonal frequency division multiplexing (OFDM) wireless systems is presented and tested on channel measurements from a real indoor scenario. The receiver jointly performs channel estimation and multiuser detection, with soft information iteratively provided by the singleuser decoders. Results for the performance are presented in terms of bit error rate (BER) and relative minimum mean square error (MMSE) vs signal-to-noise ratio (SNR). Comparison with the single-user bound (SUB) shows a loss in performance due to frequency correlation.

Keywords

MIMO systems; OFDM modulation; channel estimation; error statistics; indoor radio; iterative decoding; mean square error methods; multiuser detection; radio receivers; wireless channels; BER; MMSE; bit error rate; channel estimation; channel measurement; iterative decoding; iterative joint channel estimation; iterative receiver; multiple-input multiple-output systems; multiuser detection; orthogonal frequency division multiplexing; real indoor scenario; relative minimum mean square error; wireless MIMO-OFDM systems; Bit error rate; Channel estimation; Frequency measurement; Iterative decoding; MIMO; Mean square error methods; Multiuser detection; OFDM; Signal to noise ratio; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems, 2007. ISWCS 2007. 4th International Symposium on

Conference_Location

Trondheim

Print_ISBN

978-1-4244-0978-5

Electronic_ISBN

978-1-4244-0979-2

Type

conf

DOI

10.1109/ISWCS.2007.4392445

Filename

4392445