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Analysis of Unsynchronization Carrier Frequency Offset for OFDM System Using Moose Estimation Method

Journal: International Research Journal of Advanced Engineering and Science (IRJAES) (Vol.2, No. 4)

Publication Date:

Authors : ;

Page : 42-45

Keywords : OFDM; Carrier Frequency offset; SNR; Moose Estimation; Bit Error Rate.;

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Abstract

One of the greatest technology in telecommunications technology is a modulation technology. Variety of modulation technology offers a lot of advantages but there are also disadvantages, and it will always be corrected so we can get better technology. One of such technology is Orthogonal Frequency Division Multiplexing (OFDM), in this research using CFO moose techniques to overcome the frequency offset in OFDM. The simulation results showed that the level of accuracy and range estimation CFO is directly proportional to the value of SNR, the number of sample preamble CFO estimation and correction residue.Range Moose method between -0.4 and 0.4, with the MSE reached 1.48 x 10-5 when SNR 20dB. In the range -0.4 to -0.5 or 0.4 to 0.5 MSE and BER will increase drastically. Moose estimation method is not recommended for estimation of CFO more than 0.5 because it produces very large BER namely 0,5. increase correction residue in the system can reduce BER and increase the range estimation especially at lower SNR of 20dB.

Last modified: 2017-11-20 17:18:46