Title :
Research on Smart Antenna in FDD System
Author :
Lu, Xiaoyu ; Zhang, Zufan
Author_Institution :
Coll. of Commun., Chongqing Univ. of Post & Telecommun., Chongqing
Abstract :
Applying smart antennas to the communication system with FDD mode is still a difficulty which remains to be answered, due to the existing frequency difference between uplink and downlink. In this paper, downlink beam forming was implemented in terms of transmission-receiving reciprocity theorem of antennas and receiver feedback of fade parameters. According to simulation analysis, the results reveal that SA can be applied and achieve better performance in a certain frequency difference range for different FDD systems. And increase of the difference will result in obvious performance degradation.
Keywords :
adaptive antenna arrays; frequency division multiplexing; FDD system; antenna feedback; downlink beam forming; frequency difference; performance degradation; receiver feedback; smart antenna; transmission-receiving reciprocity theorem; Analytical models; Antenna feeds; Antenna theory; Communication systems; Downlink; Feedback; Frequency; Performance analysis; Receiving antennas; Transmitting antennas;
Conference_Titel :
Intelligent Information Technology Application Workshops, 2008. IITAW '08. International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3505-0
DOI :
10.1109/IITA.Workshops.2008.154
