Title :
A new approach of applications of antenna arrays in asynchronous DS-CDMA systems based on joint space-code processing
Author :
Eric, Miljko ; Dukic, Miroslav L.
Author_Institution :
Inst. of Electr. Eng., VTI, Belgrade, Yugoslavia
Abstract :
A new approach to application of antenna array in asynchronous DS-CDMA systems, which is based on joint spatio-code processing, is proposed. Matched and MVDR filter structures in joint space-code domain are formulated. The simplest structure of DS-CDMA receiver based on joint spatio-code filtering is proposed. Numerical results show that proposed receiver is “near-far” robust, without additional complicated processing, especially if a spatio-code MVDR filter is applied
Keywords :
antenna arrays; array signal processing; code division multiple access; filtering theory; matched filters; multiuser channels; radio receivers; space-time adaptive processing; spread spectrum communication; DS-CDMA receiver; MVDR filter structures; antenna arrays; asynchronous DS-CDMA systems; joint space-code processing; joint spatio-code processing; matched filter structure; near-far robust receiver; spatio-code MVDR filter; Antenna arrays; Aperture antennas; Demodulation; Direction of arrival estimation; Filtering; Matched filters; Multiaccess communication; Multiple signal classification; Receiving antennas; Robustness;
Conference_Titel :
Spread Spectrum Techniques and Applications, 2000 IEEE Sixth International Symposium on
Conference_Location :
Parsippany, NJ
Print_ISBN :
0-7803-6560-7
DOI :
10.1109/ISSSTA.2000.876475
