Title :
A novel constant modulus array for multiuser detection
Author :
Ji-Dong, Zhang ; Bao-Yu, Zheng ; Hong-Liang, Fu
Author_Institution :
Shanghai Jiao Tong Univ., China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
A novel multitarget constant modulus array structure is proposed for CDMA systems in this paper. The new algorithm for the structure is called predespreading and wavelet denoising constant modulus algorithm (D-WD-CMA). In the new algorithm, the predespreading and wavelet denoising are applied for multitarget arrays to remove some multiple access. Simulation results illustrate the good performance for the proposed algorithm, compared with the traditional CMA algorithm.
Keywords :
antenna arrays; code division multiple access; error statistics; interference suppression; multiuser detection; radiofrequency interference; signal denoising; spread spectrum communication; wavelet transforms; BER; D-WD-CMA; DS-CDMA systems; MAI cancellation; bit error rate; constant modulus array; despreading; direct sequence code division multiple access; multiple access interference; multiuser detection; signal processing; wavelet denoising constant modulus algorithm; Adaptive arrays; Additive white noise; Gaussian noise; Multiaccess communication; Multiple access interference; Multiuser detection; Noise reduction; Signal detection; Signal processing; System performance;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1441647
