Title :
A novel smart antenna system implementation for broad-band wireless communications
Author :
Jeon, Seong-Sik ; Wang, Yuanxun ; Qian, Yongxi ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
5/1/2002 12:00:00 AM
Abstract :
A novel design of smart antenna system with adaptive beamforming capability is introduced for broad-band wireless communication. To achieve high data throughput of the multi-antenna system, a parallel analog-digital (A/D) signal processing scheme is proposed. The essential idea is to realize the real-time beamforming using heterodyne RF and IF circuitry. The bottleneck of digital signal processor (DSP) I/O and processing speed is thus relieved, while the advanced signal processing capability of the DSP chip is utilized. Based on this idea, a 5.8 GHz smart antenna receiver is implemented. Various experiments are carried out to examine the direction of arrival (DOA) estimation, beam synthesis, and bit error rate (BER) performances of the system. A 20-Mb/s data throughput using binary phase shift keying (BPSK) modulation is demonstrated for this eight-element adaptive array
Keywords :
adaptive antenna arrays; antenna phased arrays; array signal processing; broadband networks; digital signal processing chips; direction-of-arrival estimation; error statistics; phase shift keying; radio networks; receiving antennas; 20 Mbit/s; 5.8 GHz; BER performance; BPSK; DOA estimation; DSP I/O; DSP chip; SDMA; WLAN; adaptive beamforming; beam synthesis; binary phase shift keying; bit error rate; broad-band wireless communication; broad-band wireless communications; digital signal processor; direction of arrival estimation; eight-element adaptive array; heterodyne IF circuitry; heterodyne RF circuitry; high data throughput; multiantenna system; parallel analog-digital signal processing; phased arrays; processing speed; real-time beamforming; smart antenna receiver; smart antenna system; wireless local area network; Adaptive arrays; Adaptive systems; Array signal processing; Binary phase shift keying; Bit error rate; Broadband communication; Digital signal processing chips; Direction of arrival estimation; Phased arrays; Throughput;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2002.1011225
