Title :
A New Cost Function for the Blind Equalization of Cross-QAM Signals
Author_Institution :
EE Department, CIIT, H-8/1, Islamabad 44000, Pakistan. Email: shafayat@ieee.org
Abstract :
This paper presents a new family of algorithms for blind equalization of cross-QAM signals. It is shown that the proposed Generalized Cross-Contour Algorithm (GCrCA) has a tendency to force the equalizer output to lie onto a cross-shaped contour, yielding a successful removal of ISI and recovering the correct orientation of the constellation simultaneously.
Keywords :
Adaptive equalizers; blind equalization; constant modulus algorithm (CMA); multimodulus algorithm (MMA); reduced-constellation algorithm (RCA); square/cross quadrature amplitude modulation (QAM); Adaptive equalizers; Bandwidth; Blind equalizers; Cost function; Demodulation; Intersymbol interference; Modems; Quadrature amplitude modulation; Radio transmitters; Signal to noise ratio; Adaptive equalizers; blind equalization; constant modulus algorithm (CMA); multimodulus algorithm (MMA); reduced-constellation algorithm (RCA); square/cross quadrature amplitude modulation (QAM);
Conference_Titel :
Microelectronics, 2005. ICM 2005. The 17th International Conference on
Print_ISBN :
0-7803-9262-0
DOI :
10.1109/ICM.2005.1590087
