DocumentCode :
2821487
Title :
On the Selection of Significant Channel Parameters for OFDM Systems: A Hypotheses Testing Based Approach
Author :
El-Sallam, A.A. ; Nordholm, Sven ; Dam, Hai Huyen
Author_Institution :
Western Australian Telecommun. Res. Inst., Crawley, WA
fYear :
2006
fDate :
Aug. 2006
Firstpage :
1
Lastpage :
5
Abstract :
This paper considers multiple hypothesis techniques for the identification of significant channel parameters in OFDM systems. Unlike several OFDM channel estimation methods, where the channel response is estimated based on a pre-defined or an estimated length. In this work, the channel length is assumed unknown and only significant channel parameters will be identified. First, using a training based scenario, a model is proposed for the channel response. Second the model parameters are estimated using least squares (LS). Based on those estimates, multiple hypothesis tests based on F-statistics are constructed to classify each significant parameter. Simulation results show that the method is capable of identifying significant channel parameters with high probability under various SNR. In addition a receiver based on those parameters have a better performance than one which is based on the full model
Keywords :
OFDM modulation; channel estimation; least squares approximations; probability; F-statistics; OFDM system; channel parameter estimation; channel response; least squares; multiple hypothesis testing; orthogonal frequency division multiplexing; probability; Australia; Channel estimation; Digital video broadcasting; Fading; Frequency division multiplexing; Local area networks; OFDM modulation; Parameter estimation; Streaming media; System testing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location :
Busan
Print_ISBN :
1-4244-0574-2
Electronic_ISBN :
1-4244-0574-2
Type :
conf
DOI :
10.1109/APCC.2006.255782
Filename :
4023087
Link To Document :
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