Conference Proceeding

Robust non data-aided frequency offset estimation technique

Dept. of Commun. Eng., Etisalat Univ., Sharjah, United Arab Emirates
10/2004; DOI:10.1109/PIMRC.2004.1373921 ISBN: 0-7803-8523-3 pp.1365 - 1369 Vol.2 In proceeding of: Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on, Volume: 2
Source: IEEE Xplore

ABSTRACT A new technique to recover the carrier frequency offset of OFDM systems is proposed. The proposed technique does not require cyclic prefix, pilot signals, training symbols, or any other supplementary data, this will significantly improve the system power and bandwidth efficiency. The proposed algorithm exploits the interference that results due the loss of orthogonality between subcarriers where the variance of the resulted interference is proportional to the carrier frequency offset. The proposed technique does not require prior fine symbol synchronization and it is capable of estimating the carrier offset at Eb/No as low as -3 dB with symbol timing offset that is less than or equal to 10% of the symbol duration.

0 0
 · 
0 Bookmarks
 · 
21 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

bandwidth efficiency
 
carrier frequency
 
OFDM systems
 
orthogonality
 
pilot signals
 
prior fine symbol synchronization
 
proposed algorithm exploits
 
results due
 
symbol duration
 
system power
 
variance
 

A.J. Al-Dweik