DocumentCode :
3247953
Title :
New variable step-size order statistic LMS-based frequency domain equalisation for OFDM systems
Author :
Sitjongsataporn, Suchada
Author_Institution :
Dept. of Electron. Eng., Mahanakorn Univ. of Technol., Bangkok, Thailand
fYear :
2011
fDate :
7-9 Dec. 2011
Firstpage :
1
Lastpage :
4
Abstract :
A new variable step-size algorithm based on an order statistic normalised averaged least mean square algorithm (OSNALMS) is proposed for frequency domain equalisation (FDE). An optimal variable step-size approach is introduced by means of mean square deviation scheme. An adaptive FDE approach based on a variable step-size OSNALMS algorithm is presented with regard to the proposed optimal variable step-size algorithm for orthogonal frequency division multiplexing systems. We present simulation results to compare the proposed algorithm on the basis of its performance and rate of convergence. Simulation results show that the bit error rate (BER) as well as the mean square error (MSE) can be reduced by the proposed algorithm.
Keywords :
OFDM modulation; equalisers; error statistics; frequency-domain analysis; least mean squares methods; BER; MSE; OFDM systems; adaptive FDE approach; bit error rate; frequency domain equalisation; mean square deviation scheme; order statistic normalised averaged least mean square algorithm; orthogonal frequency division multiplexing systems; variable step-size OSNALMS algorithm; OFDM; Orthogonal frequency division multiplexing (OFDM); frequency domain equalisation (FDE); order statistic least mean square algorithm (OSLMS); variable step-size;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent Signal Processing and Communications Systems (ISPACS), 2011 International Symposium on
Conference_Location :
Chiang Mai
Print_ISBN :
978-1-4577-2165-6
Type :
conf
DOI :
10.1109/ISPACS.2011.6146191
Filename :
6146191
Link To Document :
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