Please wait a minute...
ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2005, Vol. 6 Issue ( 1): 6-    DOI: 10.1631/jzus.2005.A0038
    
A novel constant modulus array for multiuser detection
ZHANG Ji-dong, ZHENG Bao-yu, FU Hong-liang
Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200030, China; Bureau of Telecom Transmission Jiangsu, Nanjing 210003, China; Institute of Signal and Information Processing, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; Department of Communication Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  This paper proposes a new multitarget constant modulus array structure for code division multiple access (CDMA) systems. The new algorithm for the structure is called pre-despreading and wavelet denoising constant modulus algorithm (D-WD-CMA). In the new algorithm, the pre-despreading is applied to multitarget arrays to remove some multiple access interferences. After that the received signal is subjected to wavelet de-noising to reduce some noise, and used in CMA adaptive iteration for signal separation. Simulation results showed that the proposed algorithm performed better than the traditional CMA algorithm.

Key words： Constant modulus algorithm      Adaptive array      Wavelet de-noising      Multiuser detection      CDMA     
Received: 03 March 2004     
CLC:  TN929  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
ZHANG Ji-dong
FU Hong-liang
ZHENG Bao-yu
Cite this article:

ZHANG Ji-dong, ZHENG Bao-yu, FU Hong-liang. A novel constant modulus array for multiuser detection. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6( 1): 6-.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.A0038     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2005/V6/I 1/6

[1] Li-fang FENG, Ping-zhi FAN. Generalized bounds on the partial periodic correlation of complex roots of unity sequence set[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(2): 207-210.
[2] Huang Jian-wei, Li Zhu, Chiang Mung, Katsaggelos Aggelos K.. Joint rate control and scheduling for wireless uplink video streaming[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(5 ): 16-.
[3] GUAN Yun-feng, ZHANG Zhao-yang, Lai Li-feng. DPLL implementation in carrier acquisition and tracking for burst DS-CDMA receivers[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(5): 526-531.