A downlink co-channel signal transmitting model for the smart antenna system

Author

Jin, Liang ; Li, Jiang ; Yin, Qinye ; Fu, Junmei

Author_Institution

Dept. of Electr. & Inf. Eng., Xi´´an Jiaotong Univ., China

Volume

1

fYear

1997

fDate

2-5 Dec 1997

Firstpage

33

Abstract

The issue of transmitting downlink multiple signals in the smart antenna system is addressed here. By non-coherent superposition of the field, the equivalent feed model of the antenna arrays is established under multi-user condition, which is proved to be effective when transmitting multiple co-channel signals to several receivers. Based on that model, the feasibility and efficiency of accomplishing phase-shift and amplitude-weight in base-band signal processing unit is also discussed. Finally, for the case of MSK modulation, the downlink implementation scheme of the smart antenna system is presented

Keywords

adaptive antenna arrays; antenna feeds; antenna theory; minimum shift keying; MSK modulation; amplitude-weight; base-band signal processing unit; downlink cochannel signal transmitting model; downlink implementation scheme; downlink multiple signals; equivalent feed model; multi-user condition; multibeam antenna; noncoherent field superposition; phase-shift; smart antenna system; Antenna arrays; Array signal processing; Base stations; Downlink; Feeds; Mobile communication; Phased arrays; Signal processing; Synthetic aperture sonar; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific

Print_ISBN

962-442-117-X

Type

conf

DOI

10.1109/APMC.1997.659298

Filename

659298