DocumentCode
1993328
Title
Asymptotic Analysis of Dual-Diagonal LMMSE Channel Estimation in OFDM Systems
Author
Geng, Nian ; Yuan, Xiaojun ; Ping, Li ; Yeung, Lam Fat
Author_Institution
Dept. of Electr. Eng., City Univ. of Hong Kong, Hong Kong, China
fYear
2010
fDate
6-10 Dec. 2010
Firstpage
1
Lastpage
5
Abstract
Asymptotic analysis of the dual-diagonal (DD) linear-minimum-mean-square-error (LMMSE) channel estimation for orthogonal frequency-division multiplexing (OFDM) systems is presented. We prove that the DD-LMMSE estimator is asymptotically optimal among all DD estimators as the number of subcarriers tends to infinity. Based on the asymptotic analysis, we propose an evolution tool to predict the performance of iterative OFDM systems. Numerical results are presented to verify our analysis.
Keywords
OFDM modulation; channel estimation; mean square error methods; DD-LMMSE estimator; asymptotic analysis; channel estimation; dual-diagonal LMMSE channel estimation; iterative OFDM systems; linear-minimum-mean-square-error; orthogonal frequency-division multiplexing; Channel estimation; Estimation; Frequency domain analysis; IEEE Communications Society; OFDM; Signal detection; Transceivers;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location
Miami, FL
ISSN
1930-529X
Print_ISBN
978-1-4244-5636-9
Electronic_ISBN
1930-529X
Type
conf
DOI
10.1109/GLOCOM.2010.5683744
Filename
5683744
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