Title :
The performance of feedback type adaptive array antenna in FDD/DS-CDMA system
Author :
Shokair, M. ; Akaiwa, Yoshihiko
Author_Institution :
Graduate Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
This paper presented the performance of feedback type AAA in an FDD/DS-CDMA system. The results include the effects of antenna spacing, feedback control delay time and the maximum Doppler frequencies under flat fading and frequency-selective fading. All these results are investigated under an ideal condition that measured channel characteristics are sent back precisely to the base station. We compared the performances of our system with that of 3GPP transmit diversity system (mode1).
Keywords :
3G mobile communication; adaptive antenna arrays; code division multiple access; diversity reception; fading channels; feedback; frequency division multiplexing; spread spectrum communication; 3GPP transmit diversity system; DS-CDMA; FDD; antenna spacing; direct sequence division multiple access; feedback control delay time; feedback type adaptive array antenna; flat fading; frequency division duplexing; frequency-selective fading; maximum Doppler frequencies; measured channel characteristics; Adaptive arrays; Antenna arrays; Antenna feeds; Antenna measurements; Base stations; Delay effects; Fading; Feedback control; Frequency; Multiaccess communication;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207751
