Title :
A base-station antenna array receiver for cellular DS/CDMA with M-ary orthogonal modulation
Author :
Naguib, Ayman F. ; Paulraj, Arogyaswami
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
fDate :
31 Oct-2 Nov 1994
Abstract :
Code division multiple access (CDMA) has been shown to offer higher capacity than the existing FDMA or TDMA systems. In the proposed IS-95 CDMA standard, no pilot is used in the reverse link due to power efficiency considerations. Therefore, an M-ary orthogonal modulation with noncoherent reception is used for this link. Spatial processing with base-station antenna arrays was proposed to reduce co-channel interference and increase system capacity. We present a base-station antenna arrays receiver structure for cellular CDMA with M-ary orthogonal modulation and noncoherent RAKE combining in the presence of multipath
Keywords :
antenna arrays; cellular radio; channel capacity; cochannel interference; code division multiple access; interference suppression; land mobile radio; modulation; multipath channels; pseudonoise codes; radio receivers; radiofrequency interference; radiowave propagation; receiving antennas; spread spectrum communication; IS-95 CDMA standard; M-ary orthogonal modulation; base-station antenna array receiver; cellular CDMA; cellular DS/CDMA; co-channel interference reduction; multipath; noncoherent RAKE combining; noncoherent reception; system capacity; Antenna arrays; Correlators; Differential quadrature phase shift keying; Diversity reception; Modulation coding; Multiaccess communication; RAKE receivers; Receiving antennas; System performance; Time division multiple access;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471583
