DocumentCode :
341564
Title :
Performance of a CDMA beamforming array-receiver in spatially-correlated Rayleigh-fading multipath
Author :
Affes, Sofikne ; Mermelstein, P.
Author_Institution :
INRS-Telecommun., Univ. du Quebec, Verdun, Que., Canada
Volume :
1
fYear :
1999
fDate :
36342
Firstpage :
249
Abstract :
In previous work we proposed an array-receiver that implements coherent maximum ratio combining (MRC) in space and time in a 2D-RAKE structure. In this contribution we evaluate different versions of this combiner in spatially-correlated Rayleigh fading and compare them to previous array-receiver solutions. Simulation results indicate that the proposed versions are more sensitive to spatial correlation, especially those which better exploit spatial combining. However, they still offer the best performance even in very poor spatial diversity situations. Results also suggest that concatenated processing of the spatio-temporal components significantly increases robustness to correlation and further improves the performance advantage over 2D-RAKE structures
Keywords :
Rayleigh channels; adaptive antenna arrays; array signal processing; code division multiple access; correlation methods; diversity reception; land mobile radio; multipath channels; radio receivers; spread spectrum communication; 2D-RAKE structure; CDMA; IS-95 system; beamforming array-receiver; coherent maximum ratio combining; concatenated processing; spatial combining; spatial correlation; spatial diversity; spatially-correlated Rayleigh-fading multipath; spatio-temporal components; Antenna arrays; Array signal processing; Business; Degradation; Diversity reception; Interference; Mobile antennas; Multiaccess communication; Rayleigh channels; Receiving antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
ISSN :
1090-3038
Print_ISBN :
0-7803-5565-2
Type :
conf
DOI :
10.1109/VETEC.1999.778055
Filename :
778055
Link To Document :
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