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

Volume

4

Issue

9

fYear

2000

Firstpage

273

Lastpage

276

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;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.873484

Filename

873484