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http://dx.doi.org/10.7236/JIIBC.2014.14.3.57

Performance Improvement of MCMA Equalization Algorithm Using Adaptive Modulus  

Lim, Seung-Gag (Dept. of Information and Communication, Kongju National University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.14, no.3, 2014 , pp. 57-62 More about this Journal
Abstract
This paper proposes the improving the equalization performance using the adaptive modulus concept to the MCMA blind equalizer in order to the reduction of intersymbol interference which occurs in the band limited and time dispersive communication channel. In MCMA blind algorithm, it is possible to reducing the amplitude and phase rotation of intersymbol interference without training sequence, the fixed constant modulus of transmission signal is used. But in proposed algorithm, the modulus are adaptively varies according to the equalizer output signal, then the improved equalization performance were obtained by the computer simulation. For this, the recovered signal constellation that is the output of the equalizer, the convergence performance by MSE, MD (maximum distortion) and residual isi characteristic learning curve were used. The propose algorithm has fairly good performance compared to the traditional MCMA algorithm in the same adaptive equalization algorithm.
Keywords
MCMA; residual isi; Adaptive Modulus; intersymbol interference; MSE;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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