Title :
Outdoor communications using adaptive arrays in CDMA mobile systems
Author :
Kyeong, Mun Geon ; Kang, Yang Gi
Author_Institution :
ETRI-Radio & Broadcasting Technol. Lab., Taejon, South Korea
Abstract :
The work presented in this paper exploits the use of adaptive arrays in CDMA mobile radios for the enhancement in outdoor communications performance. An RLS-inverse-based MMSE beamformer has been introduced to the so called the two-dimensional (2D) beamformer-RAKE or spatial-temporal (S-T) array receiver block of basestation system for dramatic improvement in SINR and BER performance. Then, design and implementation of adaptive array basestation are described. Subsequently, outdoor field tests and corresponding performances are presented as partial experimental results with the CA 3TS (CDMA adaptive antenna array testbed system) developed at ETRI
Keywords :
adaptive antenna arrays; array signal processing; cellular radio; code division multiple access; error statistics; inverse problems; least mean squares methods; radio receivers; radiofrequency interference; receiving antennas; 2D beamformer-RAKE array receiver; BER; CDMA adaptive antenna array testbed system; CDMA mobile radios; CDMA mobile systems; ETRI; MMSE adaptive array; RLS-inverse-based MMSE beamformer; SINR; adaptive array basestation; basestation system; cellular radio; experimental results; outdoor communications performance; outdoor field tests; spatial-temporal array receiver; Adaptive arrays; Adaptive control; Algorithm design and analysis; Antenna arrays; Mobile communication; Multiaccess communication; Programmable control; Signal design; Signal processing; System testing;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.778058
