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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 6    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 6,June 2012
A technique for Carrier frequency offset estimation in OFDM- based systems for Frequency-Selective Fading Channels
Full Text(PDF, )  PP.911-915  
Navid daryasafar
Multi-Input Multi-Output systems, carrier frequency offset (CFO), Synchronization, MLE algorithm.
This paper discusses the effects of frequency offset on the performance of orthogonal frequency division multiplexing (OFDM) digital communications. The main problem with frequency offset is that it introduces interference among the multiplicity of carriers in the OFDM signal. The aim of this survey is to investigate Carrier frequency offset estimation method in based OFDM systems. According to this, using maximum likelihood estimation algorithm (MLE), the carrier frequency offset (CFO) can be estimated. A maximum likelihood estimation (MLE) algorithm is derived and its performance computed and compared with simulation results.
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