Title :
3G-class space-time array transceiver for high data rate service WCDMA smart antenna system
Author :
Kyeong, Mun Geon ; Park, Jae Joon
Author_Institution :
Radio & Broadcasting Technol. Lab., ETRI, Taejon, South Korea
Abstract :
This paper specially considers a new space-time (S-T) array transceiver for 3G-class high data rate service WCDMA system (460.8 kbps image data services) employing an optimum beamformer-channel estimator. To attain significant performance improvement, decision-directed MMSE (MMSE/DD) weight calculation algorithm based on channel estimation schemes is developed as an alternative to the conventional beamformer-RAKE schemes. Appropriate S-T array processing transceiver structure is derived and incorporated into system performance analysis to investigate the effect of channel estimations and decision-directed feedback on the overall performance of proposed MMSE/DD S-T array transceiver-based 3.6861 Mcps WCDMA smart basestation system. It is shown that highly improved S-T array design is possible and system employing the proposed smart basestation transceiver structure can sustain significant co-channel interference and multipath fading suppression capability while maintaining low bit error performance at the mobile high data rate service applications
Keywords :
adaptive antenna arrays; array signal processing; broadband networks; cochannel interference; code division multiple access; fading channels; feedback; interference suppression; least mean squares methods; multipath channels; multiuser channels; radio networks; space-time adaptive processing; transceivers; 3.6864 MHz; 3G-class space-time array transceiver; 460.8 kbit/s; S-T array processing transceiver structure; WCDMA smart antenna system; WCDMA smart basestation system; channel estimation; cochannel interference suppression; decision-directed MMSE weight calculation algorithm; decision-directed feedback; image data services; low bit error performance; mobile high data rate service applications; multipath fading suppression; optimum beamformer-channel estimator; reverse link beamforming; signal model; smart basestation transceiver; system performance analysis; Antenna arrays; Array signal processing; Channel estimation; Fading; Interference; Land mobile radio; Modulation coding; Multiaccess communication; Performance analysis; Transceivers;
Conference_Titel :
Communications, 2000. ICC 2000. 2000 IEEE International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-6283-7
DOI :
10.1109/ICC.2000.853653
