Title :
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
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;
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
DOI :
10.1109/ISWCS.2007.4392445
