Title :
A blind signal separation method for multiuser communications
Author :
Castedo, Luis ; Escudero, Carlos J. ; Dapena, Adriana
Author_Institution :
Dept. de Electronica y Sistemas, Univ. de La Coruna, Spain
fDate :
5/1/1997 12:00:00 AM
Abstract :
A new approach based on the constant modulus (CM) criterion is proposed to separate instantaneous linear mixtures of signals using a linear memoryless multiple input multiple output (MIMO) system. Even though a nonconvex cost function is minimized, analyses show that minima correspond to parameter settings where perfect separation is achieved
Keywords :
Hessian matrices; MIMO systems; adaptive signal detection; array signal processing; code division multiple access; convergence of numerical methods; memoryless systems; optimisation; stochastic processes; MIMO system; blind signal separation method; constant modulus criterion; instantaneous linear mixtures; linear memoryless multiple input multiple output system; multiuser communications; nonconvex cost function minimisation; perfect separation; stochastic gradient algorithm; Blind source separation; Cost function; Gaussian noise; MIMO; Matched filters; Multiaccess communication; Sensor arrays; Signal processing; Source separation; Vectors;
Journal_Title :
Signal Processing, IEEE Transactions on
