Title :
Performance Analysis of Two Constant Modulus Algorithms in CDMA System
Author :
ZHou, Xianchun ; ZHou, Jie ; Shi, Lanfang
Author_Institution :
Coll. of Electron. & Inf. Eng., NUIST, Nanjing, China
Abstract :
In this paper, a performance analysis of linearly constrained constant modulus algorithm (LCCMA) and linearly constrained differential constant modulus algorithm (LCDCMA) was presented. We show in the noise-free case that the LCCMA can completely remove multiple-access interference if and only if the desired user amplitude is no less than the critical value 1/¿3, however, the LCDCMA in all test situations can converge to desired user. The simulation examples demonstrate the results.
Keywords :
code division multiple access; interference (signal); multiuser detection; CDMA system; linearly constrained constant modulus algorithm; linearly constrained differential constant modulus algorithm; multiple access interference; multiuser detection; noise free case; Adaptive filters; Educational institutions; Filtering algorithms; Interference constraints; Multiaccess communication; Multiple access interference; Multiuser detection; Performance analysis; Testing; Vectors;
Conference_Titel :
Information Science and Engineering (ICISE), 2009 1st International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4909-5
DOI :
10.1109/ICISE.2009.828
