DocumentCode :
394813
Title :
On the symbol timing recovery in space-time coding systems
Author :
Wu, Yik-Chung ; Chan, Shing-Chow
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Volume :
1
fYear :
2003
fDate :
20-20 March 2003
Firstpage :
420
Abstract :
Space-time coding has received considerable interest recently as a simple transmit diversity technique for improving the capacity and data rate of a channel without bandwidth expansion. Most research work in space-time coding, however, assumed that the symbol timing at the receiver is perfectly known. In practice, this has to be estimated with high accuracy. In this paper, two symbol timing recovery algorithms for space-time coding systems are proposed. The first one is based on orthogonal training sequences and approximated log likelihood function. It is an improvement of a previous symbol timing synchronization algorithm in that high estimation accuracy can be achieved even when the over sampling factor is small. The second one employs the squaring algorithm. It offers good performance and does not require training sequences.
Keywords :
diversity reception; maximum likelihood estimation; space-time codes; synchronisation; data rate; log likelihood function; orthogonal training sequence; space-time coding; squaring algorithm; symbol timing recovery algorithm; transmit diversity technique; Bandwidth; Data engineering; Degradation; Matched filters; Propagation losses; Receiving antennas; Sampling methods; Space stations; Timing; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
ISSN :
1525-3511
Print_ISBN :
0-7803-7700-1
Type :
conf
DOI :
10.1109/WCNC.2003.1200386
Filename :
1200386
Link To Document :
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