Title :
Joint blind equalization with a shell partition-based CMA for QAM signal constellations
Author :
Lee, Gi Hun ; Park, Rae-Hong
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
Abstract :
For quadrature-amplitude modulation (QAM) systems, the joint blind equalization (JBE) algorithm, concatenation of two different equalization modes, has been widely used. After the eye is opened by the blind equalization mode, the decision-directed (DD) mode follows to improve the equalization performance with fast convergence. This paper proposes a shell partition-based constant modulus algorithm (CMA) (SPCMA) which acts as the DD mode in the JBE. Computer simulation results for 16-QAM show the effectiveness of the proposed JBE
Keywords :
convergence; equalisers; quadrature amplitude modulation; 16-QAM; DD mode; JBE algorithm; QAM signal constellations; SPCMA; blind equalization mode; concatenation; decision-directed mode; equalization modes; equalization performance; fast convergence; joint blind equalization; quadrature-amplitude modulation; shell partition-based CMA; Blind equalizers; Computer simulation; Constellation diagram; Decision feedback equalizers; Dynamic range; Frequency shift keying; Maximum likelihood estimation; Partitioning algorithms; Power generation; Quadrature amplitude modulation;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599605
