Title :
A receiver of simple structure for antenna array CDMA systems
Author_Institution :
Inst. for Telecommun. Res., South Australia Univ., Mawson Lakes, SA, Australia
fDate :
9/1/1999 12:00:00 AM
Abstract :
In code division multiple access systems, the two-dimensional (2-D) RAKE structure had been proposed using multiple antennas to increase the capacity. It consists of multiple fingers of a beamformer and a correlator. In this paper, we consider a simpler receiver structure. We only use one finger, which consists of one pair of spatial and temporal filters to combine signals. It is shown that the performance of the receiver system is comparable with that of the 2-D RAKE receiver. Furthermore, it is observed that the proposed receiver and the 2-D RAKE receiver have limited near-far resistance by the generation of the space domain due to antenna arrays
Keywords :
adaptive antenna arrays; code division multiple access; correlators; filtering theory; interference suppression; receiving antennas; space-time adaptive processing; spread spectrum communication; 2D RAKE structure; CDMA systems; antenna array; beamformer; capacity; code division multiple access systems; correlator; multiple antennas; near-far resistance; receiver structure; receiver system performance; space domain; spatial filter; spreading sequences; temporal filter; Antenna arrays; Correlators; Fading; Filters; Fingers; Multiaccess communication; Multipath channels; RAKE receivers; Receiving antennas; Two dimensional displays;
Journal_Title :
Vehicular Technology, IEEE Transactions on
