DocumentCode
523381
Title
Research on the baseband space-frequency modulation beamforming scheme
Author
Jia, Xiangdong ; Fu, Haiyang ; Ding, Wei ; Fan, Junfeng
Author_Institution
Nanjing University of Posts and Telecommunications, Nanjing 210003, China
fYear
2009
fDate
7-9 Dec. 2009
Firstpage
456
Lastpage
459
Abstract
According to the complex number expression of smart antenna (SA) array element signals and the fundamental of QPSK modulation, a mathematic model of utilizing baseband QPSK modulated signal to realize SA directional transmitting beamforming is presented. With the mathematics model, the concept of baseband QPSK space-frequency modulation beamforming is proposed as well as the circuit structure unit of space-frequency modulator. Based on the circuit unit of space-frequency modulator, the key part of baseband QPSK space-frequency modulation beamforming equipment is derived, which is fit to the directional transmission of signals of multiple CDMA subscribers.
Keywords
circuit structure; smart antenna; space-frequency modulator; wireless communications;
fLanguage
English
Publisher
iet
Conference_Titel
Wireless Mobile and Computing (CCWMC 2009), IET International Communication Conference on
Conference_Location
Shanghai, China
Type
conf
Filename
5521975
Link To Document