Title :
The Research and Design of the Repeater Uplink System with Automatic Gain Control for WCDMA
Author :
Zhang, Dan ; Jiang, Haiying ; Liu, Yuanan
Author_Institution :
Beijing Xinyuanming Vogational Coll., Beijing, China
Abstract :
In order to communicate successfully for mobile stations in signal dead zone, this paper presents an uplink system with two-stage automatic gain control (AGC) circuit for WCDMA frequency selective repeater. Furthermore, the algorithm of AGC is analyzed. Agilent advanced design system (ADS) is used as a simulation tool to discuss the performance. The results show that the presented system is performed well, which has the characteristic of large pass band gain, high adjacent channel power ratio (ACPR) and steady controllable output. Therefore, this repeater system is suitable to solve the problem of the dead zone in WCDMA communication.
Keywords :
automatic gain control; broadband networks; code division multiple access; mobile radio; radio links; radio repeaters; telecommunication control; wireless channels; ACPR; ADS; AGC circuit; WCDMA frequency selective repeater; adjacent channel power ratio; agilent advanced design system; mobile station; pass band gain; repeater uplink system design; signal dead zone; steady controllable output; two-stage automatic gain control; wideband code division multiple access; Automatic control; Circuit simulation; Communication system control; Control systems; Gain control; Multiaccess communication; RF signals; Radio frequency; Receivers; Repeaters;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5301189
