Browse > Article
http://dx.doi.org/10.7236/JIIBC.2013.13.4.67

Performance of VSCA Adaptive Equalization Algorithm for 16-QAM Signal  

Lim, Seung-Gag (Dept. of Information and Communication, Kongju National University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.13, no.4, 2013 , pp. 67-73 More about this Journal
Abstract
This paper relates with the performance of VSCA adaptive equalization algorithm that is used for the minimization of the intersymbol interference due to the distortion which occurs in the time dispersive channel for the transmission of 16-QAM signal. In the conventional SCA, it is possible to compensates the amplitude and phase in the received signal that are mixed with the intersymbol interference by the constellatin dependent constant by using the 2nd order statistics of the transmitted signal. But in the VSCA, it is possible to the increase the equalization performance by adding the concept of distance adjusted approach for constellation matching. We compare the performance of VSCA and SCA algorithm by computer simulation. For this, the equalizer output signal constellation, residual isi, maximum distortion and MSE were used for perfomance comparison. It was confirmed that, the VSCA algorithm has better than the SCA in every performance index by computer simulation.
Keywords
SCA; VSCA; Maximum Distortion; Consellation Dependent Constant;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 D.N.Godard, "Self-recovering Equalization and carrier tracking in two-dimensional data comm. system", IEEE Trans. on Comm., Vol. 28, pp. 1867-1875, Nov. 1980   DOI
2 A.T.Sheikh, S.A.Sheikh, "Efficient Variants of Square Contour Algorithm for Blind Equalization of QAM Signal", World Academy of Science, Eng. and Technology, pp.200-208, 2009
3 T.Thaiupathump, L.He, S.A.Kassam, "Square contour algorithm for blind equalization of QAM signal", Signal Processing 86, pp.3357-3370, 2006   DOI   ScienceOn
4 K.Banovic,E.A.Rahleem, M.A.S.Khalid, "A Novel Radius-Adjusted Approach for Blind Adaptive Equalization", IEEE S.P.Letters, Vol.13, No.1, pp. 3 7-40, Jan. 2006   DOI   ScienceOn
5 L.He, M.G.Amin, C.Reed, R.C.Malkemes, "A Hybrid Adaptive Blind Equalization Algorithm for QAM Signals in Wireless Communications", IEEE Trans. on S.P., Vol.52, No.7, pp.2058-2069, July 2004   DOI   ScienceOn
6 KH.Oh, "An Algorithm for Variable Step-Size Improving Steady-State Performance of Blind Equalization", Journal of K.I.I.T., Vol.9, No.10, pp.4 3-48, Oct. 2011
7 J.P.Chung, I.J.Kim, "Performance Analysis of Turbo Equalizer in Fading Channel", Jorunal of K.I.I.T., Vol.10, No.1, pp.91-96, 2012. 1
8 Lim S.G., "The Performance Comparison of the MMA and SCA Algorithm for Self Adaptive Equalization", Journal of I.W.I.T., Vol.12, No.2, pp.159-165, April 2012