Title :
Blind Channel and Carrier Frequency Offset Estimation for Zero-Prefix OFDM Systems
Author_Institution :
Sch. of Eng. & Ind. Design, Univ. of Western Sydney, Sydney, NSW
Abstract :
In this paper, a blind algorithm is proposed for channel and CFO estimation in zero-prefix OFDM systems. By exploiting the greatest common divisor structure of the received signal for two or more symbols, the algorithm yields joint estimates of channel parameters and carrier frequency offset. It provides error-free message recovery at moderate SNRs.
Keywords :
OFDM modulation; channel estimation; frequency estimation; blind algorithm; blind channel estimation; carrier frequency offset estimation; channel parameters; error-free message recovery; greatest common divisor structure; orthogonal frequency division multiplexing; zero-prefix OFDM systems; Algorithm design and analysis; Bandwidth; Channel estimation; Covariance matrix; Design engineering; Digital video broadcasting; Frequency estimation; Matrix converters; OFDM; Wireless LAN; Channel; Estimation; Frequency Offset; OFDM;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.300829
