Title :
Investigation of the trade-off characteristics of beamforming performance in DS-CDMA system
Author :
Chang, Tae-Gyu ; Kim, Chong-Yun ; Chong-Yun Kim
Author_Institution :
Sch. of Electr. Eng., Chungang Univ., Seoul, South Korea
Abstract :
This paper investigates the trade-off behavior of the beamforming (BF) performance applied to the cellular DS-CDMA system. It is confirmed that the BF algorithm´s robustness to the erroneous factors of spatial scattering and direction-of-arrival (DOA) estimation error is adversely related to the increase of the direction selectivity of the array antenna. The analytically derived signal-to-interference-noise-ratio (SINR) and its degradation are compared with the simulation results for the verification of the study
Keywords :
array signal processing; cellular radio; code division multiple access; direction-of-arrival estimation; linear antenna arrays; multiuser channels; noise; radiofrequency interference; spread spectrum communication; DOA estimation error; SINR; array antenna; beamforming performance; cellular DS-CDMA system; direction selectivity; direction-of-arrival estimation error; linear antenna array; signal-to-interference-noise-ratio; simulation results; spatial scattering; trade-off characteristics; Antenna arrays; Array signal processing; Direction of arrival estimation; Directive antennas; Estimation error; Multiaccess communication; Robustness; Scattering; Signal analysis; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886640
