Title :
A new joint channel estimation and detection algorithm for MIMO channels
Author :
Karami, Ebrahim ; Shiva, Mohsen
Author_Institution :
Dept. of Electr. & Comput. Eng., Tehran Univ., Iran
Abstract :
In this paper, a new joint channel estimation and detection algorithm for frequency selective fading multiple-input multiple-output (MIMO) channels is proposed. In the channel estimation section, using a generalized form of least square (LS) algorithm, a very accurate estimate of channel parameters is obtained. The procedure of detection is done in two stages. In the first stage the inter-symbol-interference (ISI) of previous stages is subtracted and then in the second stage, using a joint detection algorithm, the transmitted symbols are estimated. Parallel-interference-cancellator (PIC) and minimum-mean-square-estimator (MMSE) are used as MIMO detectors. The efficiency of the proposed algorithm, in time-varying MIMO channels is confirmed through various simulations.
Keywords :
MIMO systems; channel estimation; fading channels; intersymbol interference; least mean squares methods; multipath channels; radiofrequency interference; signal detection; MIMO channels; detection algorithm; fading channels; intersymbol-interference; joint channel estimation; least square algorithm; minimum-mean-square-estimator; multiple-input multiple-output channels; parallel-interference-cancellator; Antenna arrays; Channel estimation; Detection algorithms; Detectors; Fading; Frequency estimation; Intersymbol interference; MIMO; Signal processing algorithms; Transmitters;
Conference_Titel :
Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on
Print_ISBN :
0-7803-8114-9
DOI :
10.1109/APCC.2003.1274359
