Title :
Closed-form analysis of linearly constrained CMA-based blind multiuser detector
Author :
Tang, Zuqiang ; Yang, Zhixing ; Yao, Yan
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
In this letter, we present a performance analysis of the blind adaptive multiuser detector (MUD) proposed in Miguez and Casredo (1998), which is based on the linearly constrained constant modulus (LCCM) criterion. Global convergence of the algorithm with additive white Gaussian noise (AWGN) is proved and two approximate closed-form solutions of the optimum tap-weight vector are derived. Also the validity of analysis is demonstrated by comparing analytical results with simulated results.
Keywords :
AWGN; adaptive signal detection; code division multiple access; convergence of numerical methods; spread spectrum communication; AWGN; LCCM criterion; additive white Gaussian noise; blind adaptive multiuser detector; closed-form analysis; constant modulus algorithm; global convergence; linearly constrained CMA-based blind multiuser detector; linearly constrained constant modulus criterion; performance analysis; tap-weight vector; AWGN; Additive white noise; Detectors; Filters; Gaussian noise; Interference constraints; Multiaccess communication; Multiuser detection; Performance analysis; Power system modeling;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.873484
