Fast Convergent Multimodulus Algorithm for Blind Equalization of QAM Signals

Author

Sheikh, Shahzad Amin ; Fan, Pingzhi

Author_Institution

Southwest Jiaotong Univ., Chengdu

fYear

2007

fDate

6-7 July 2007

Firstpage

1

Lastpage

5

Abstract

In this paper; the variant of the much celebrated multimodulus algorithm (MMA) is presented for the blind equalization of QAM signals to achieve better performance at high transmission rate. In this course, a new error function is proposed by introducing additional nulls in the existing MMA error function at specific locations which enables the new scheme to achieve low steady state mean squared error (MSE), reduced residual inter symbol interference (ISI) and faster convergence than those of existing MMA. The efficacy of the proposed scheme has been proved through simulation results for 16, 64 and 256-QAM signaling.

Keywords

blind equalisers; intersymbol interference; mean square error methods; quadrature amplitude modulation; ISI; MMA error function; MSE; QAM signals; blind equalization; fast convergent multimodulus algorithm; residual inter symbol interference; steady state mean squared error; Binary phase shift keying; Blind equalizers; Constellation diagram; Convergence; Cost function; Digital communication; Intersymbol interference; Mobile communication; Quadrature amplitude modulation; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Emerging Technologies, 2007. ICIET 2007. International Conference on

Conference_Location

Karachi

Print_ISBN

978-1-4244-1247-1

Electronic_ISBN

978-1-4244-1247-1

Type

conf

DOI

10.1109/ICIET.2007.4381307

Filename

4381307