Title :
A Family of Multimodulus Algorithms for Blind Equalization of Square-QAM Signal
Author_Institution :
COMSATS Inst. of Inf. Technol. (CIIT), Islamabad
Abstract :
In this paper, a modified family of blind equalization algorithms is proposed for use in quadrature amplitude modulation (QAM) based digital communication systems. We have called this family: the generalized multimodulus algorithms: MMA(p, q). This family is derived by introducing two degrees of freedom in the conventional MM criterion. We have shown that one of the members of this family, MM(2, 1), (which, to the best of our knowledge, has never been discussed) exhibits the fastest convergence for 16-QAM signal. The dynamic convergence behavior of MM(2, 1) is analyzed and shown to be conforming with simulation results.
Keywords :
blind equalisers; digital communication; quadrature amplitude modulation; telecommunication channels; blind equalization; channel equalization; digital communication systems; multimodulus algorithms; quadrature amplitude modulation; square-QAM signal; Analytical models; Blind equalizers; Convergence; Cost function; Data communication; Finite impulse response filter; Information technology; Intersymbol interference; Jitter; Quadrature amplitude modulation;
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
DOI :
10.1109/ICIET.2007.4381304
