Title :
New multimodulus blind equalization algorithm with relaxation
Author :
Abrar, Shafayat ; Shah, Syed Ismail
Author_Institution :
Dept. of Electr. Eng., COMSATS Inst. of Inf. Technol., Islamabad
fDate :
7/1/2006 12:00:00 AM
Abstract :
A new multimodulus algorithm is presented for blind equalization of complex-valued communication channels. The proposed algorithm is obtained by solving a novel deterministic optimization criterion that constituted the dispersion minimization of a priori as well as a posteriori quantities, leading to an update equation having a particular zero-memory continuous nonlinearity. Analyses of automatic phase-recovery and interference cancellation capabilities of the proposed algorithm are provided
Keywords :
blind equalisers; channel estimation; interference suppression; maximum likelihood estimation; aposteriori quantity; automatic phase-recovery; blind equalization; complex-valued communication channel; deterministic optimization criterion; interference cancellation; minimization; multimodulus algorithm; relaxation algorithm; Blind equalizers; Communication channels; Cost function; Finite impulse response filter; Information technology; Minimization methods; Nonlinear equations; Quadrature amplitude modulation; Signal processing algorithms; Stochastic processes; Adaptive equalizers; blind equalization algorithms;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2006.871860
