DocumentCode
937435
Title
Data-aided channel estimation for turbo-PIC MIMO detectors
Author
Khalighi, Mohammad-Ali ; Boutros, Joseph J. ; Helard, Jean-Francois
Author_Institution
Inst. Fresnel, Marseille, France
Volume
10
Issue
5
fYear
2006
fDate
5/1/2006 12:00:00 AM
Firstpage
350
Lastpage
352
Abstract
We consider data-aided channel estimation for multiple input multiple output (MIMO) systems when iterative parallel interference cancellation (PIC) is performed for signal detection. We compare some data-aided channel estimation methods based on expectation maximization (EM) algorithm or on hard estimated transmit symbols. In particular, we propose a modified EM-based approach and show that when few iterations are to be performed, it provides considerable performance improvement.
Keywords
MIMO systems; channel estimation; expectation-maximisation algorithm; interference suppression; iterative decoding; signal detection; turbo codes; data-aided channel estimation; expectation maximization algorithm; iterative parallel interference cancellation; multiple input multiple output system; signal detection; turbo-PIC MIMO detector; AWGN; Channel estimation; Detectors; Filtering; Interference cancellation; Iterative algorithms; Iterative decoding; MIMO; Signal detection; Transmitting antennas;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2006.1633319
Filename
1633319
Link To Document