Title :
Smart antenna testbed for DS-CDMA systems
Author :
Yong, Zhang ; Zhenghe, Feng
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
In CDMA communication systems, smart antenna can be used to suppress multipath fading with antenna diversity and to increase the system capacity by supporting multiple co-channel users. Although many existing and new array signal processing techniques are being proposed for the smart antenna scheme, most of the performance evaluation to date relied on computer simulations or theoretical analysis based on typical model or assumptions. The paper shows a smart antennas testbed adopting a scheme using DOA (direction of arrival) estimation and beam tracking technology. The conformation and system parameters of the testbed is presented, and the new algorithms for DOA estimation and pattern synthesis are proposed at the same time. The practical experimental results show the good performance of the smart antenna testbed
Keywords :
adaptive antenna arrays; antenna testing; array signal processing; code division multiple access; direction-of-arrival estimation; diversity reception; fading channels; multipath channels; multiuser channels; spread spectrum communication; CDMA communication systems; DOA estimation; DS-CDMA systems; algorithms; antenna diversity; array signal processing; beam tracking technology; computer simulations; direction of arrival estimation; multipath fading; multiple co-channel users; pattern synthesis; performance evaluation; smart antenna testbed; system capacity; system parameters; Antenna arrays; Antenna theory; Array signal processing; Communication systems; Computer simulation; Direction of arrival estimation; Fading; Multiaccess communication; Signal analysis; System testing;
Conference_Titel :
Electrical and Computer Engineering, 2001. Canadian Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-6715-4
DOI :
10.1109/CCECE.2001.933639
