DocumentCode :
2346206
Title :
Effects of element pattern for adaptive array in W-CDMA mobile radio
Author :
Ihara, Taisuke ; Yamaguchi, Ryo
Author_Institution :
Dept. of Res. & Dev., NTT Mobile Commun. Network Inc., Japan
fYear :
1998
fDate :
1-4 Nov 1998
Firstpage :
45
Lastpage :
48
Abstract :
The next generation of land mobile communication systems must offer high bit data rates for multimedia and high-quality services. Adaptive arrays are considered to be a key technology to satisfy these demands, and applying them to land mobile radio has been investigated extensively. However, those reports mainly focus on structures of adaptive receivers or adaptive algorithms, few reports consider antenna arrays, especially the effect of the pattern of the antenna elements of the array antenna on adaptive array performance. The effects of the antenna element pattern on performance have been reported, but the investigation was of adaptive array characteristics for a TDMA cellular system. Recently, W-CDMA has been investigated extensively as an access technology for the third-generation mobile radio, IMT-2000. Interference environments are so different between the TDMA system and W-CDMA (DS-CDMA) system, that it is unknown whether their study can be applied to W-CDMA adaptive arrays or not. We examine the performance of an adaptive array receiver of a base station for a W-CDMA system by computer simulation from the viewpoint of the element pattern of the array antenna. We then discuss the relationship between 3 dB element beamwidth and service area in satisfying a bit error rate (BER) of <10-3
Keywords :
adaptive antenna arrays; code division multiple access; error statistics; land mobile radio; receiving antennas; BER; DS-CDMA; IMT-2000; W-CDMA; adaptive array receiver; base station; bit error rate; computer simulation; data rates; element beamwidth; element pattern; interference environments; land mobile radio; performance; service area; third-generation mobile radio; Adaptive arrays; Antenna arrays; Bit error rate; Land mobile radio; Mobile communication; Multiaccess communication; Multimedia systems; Receivers; Receiving antennas; Time division multiple access;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation for Wireless Communications, 1998. 1998 IEEE-APS Conference on
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-4955-5
Type :
conf
DOI :
10.1109/APWC.1998.730643
Filename :
730643
Link To Document :
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