Title :
Differential semi-blind beamspace-time interference cancellation for DS-WCDMA systems in frequency selective time-varying channels
Author :
Casella, Ivan R S ; Jeszensky, Paul Jean E ; Sousa, Elvino S.
Author_Institution :
Laboratorio de Comunicacoes e Sinais, Sao Paulo Univ., Brazil
Abstract :
In this paper, we propose a new differential semi-blind spatial-temporal beamforming receiver for asynchronous direct sequence wideband code division multiple access (DS-WCDMA) systems. The new receiver presents improved robustness to phase variations and reduction of the effects of nonlinear distortion.
Keywords :
code division multiple access; interference suppression; radio receivers; radiofrequency interference; spread spectrum communication; time-varying channels; DS-WCDMA systems; asynchronous direct sequence wideband code division multiple access systems; differential semiblind beamspace-time interference cancellation; frequency selective time-varying channels; nonlinear distortion; spatial-temporal beamforming receiver; Antenna arrays; Array signal processing; Frequency; Interference cancellation; Multiaccess communication; Nonlinear distortion; Phased arrays; Quadrature phase shift keying; Robustness; Time-varying channels;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1264373
