DocumentCode
698862
Title
Pilot-symbol-aided iterative channel estimation for OFDM-based systems
Author
Ozbek, Berna ; Le Ruyet, Didier ; Panazio, Cristiano
Author_Institution
Electron. & Commun. Lab, Conservatoire Nat. des Arts et Metiers (CNAM), Paris, France
fYear
2005
fDate
4-8 Sept. 2005
Firstpage
1
Lastpage
4
Abstract
In this paper, we propose a pilot-symbol-aided iterative channel estimation for coded OFDM-based systems. We use the symbol APP provided by the channel decoder to form groups of virtual pilots. According to their reliabilities, we combine these groups to improve the channel estimation. We also compare the proposed algorithm with the EM algorithm.
Keywords
OFDM modulation; channel estimation; expectation-maximisation algorithm; iterative methods; APP; EM algorithm; channel decoder; coded OFDM-based systems; pilot-symbol-aided iterative channel estimation; virtual pilots; Channel estimation; Interpolation; Iterative decoding; OFDM; Reliability; Time-frequency analysis; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Conference, 2005 13th European
Conference_Location
Antalya
Print_ISBN
978-160-4238-21-1
Type
conf
Filename
7078459
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