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http://dx.doi.org/10.7236/JIIBC.2017.17.3.87

Performance Comparison of CR-MMA and RMMA Algorithm for Adaptive Equalization in 16-QAM Signals  

Lim, Seung-Gag (Dept. of Information and Communication, Kongju National University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.17, no.3, 2017 , pp. 87-92 More about this Journal
Abstract
This paper compares the equalization algorithm of CR-MMA (Constellation Reduction-Multi Modulus Algorithm) and RMMA (Region based Multi Modulus Algorithm) for the compensation of channel's distortion in nonconstant modulus signal. In order to obtain the error signal for adaptive equalization, every signal points are reduced to the constant modulus signal in CR-MMA and every signal points are separated into the 4 regions, then the reductions are performed based on this region in RMMA. These two algorithm based on the reduction principle such as in order to updating the tap coefficient in the adaptive equalization, it has different equalization performance. The computer simulation was performed in order to compare the each equalization performance in this paper. As a result of computer simulation, RMMA has more good performance in the residual isi, maximum distortion and SER performance than CR-MMA, but not in convergence speed.
Keywords
CR-MMA; RMMA; residual isi; constant modulus; Maximum Distortion;
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Times Cited By KSCI : 1  (Citation Analysis)
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