Title :
Performance of smart antennas with adaptive combining at handsets for the 3GPP W-CDMA system
Author :
Kim, Suk ; Ha, Dong ; Kim, Jeong ; Kim, Jung
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
We present the performance gain of dual smart antennas with adaptive combining at handsets for the 3GPP W-CDMA system. The adaptive algorithm based on the normalized least-mean-square (N-LMS) algorithm is employed, in which antenna weights are recursively obtained. To obtain the channel profile, we adopted the GBSB (geometrically based single bounce) elliptical and circular models. The simulation results show that the dual smart antenna system with adaptive combining performs better than a single antenna system and its performance gain is 3.3 dB for the GBSB elliptical model at BER of 5×10-2 and 5.5 dB for the GBSB circular model. The higher performance gain is achieved as the mobile velocity decreases
Keywords :
adaptive antenna arrays; cellular radio; code division multiple access; least mean squares methods; statistical analysis; telecommunication channels; telephone sets; 3GPP W-CDMA system; adaptive combining; dual smart antennas; geometrically based single bounce circular model; geometrically based single bounce elliptical model; handset smart antennas; normalized least-mean-square algorithm; Adaptive arrays; Base stations; Costs; Diversity reception; Energy consumption; Interference; Multiaccess communication; Performance gain; Signal processing; Telephone sets;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957104
