Performance analysis and improvement for WCDMA system outer loop power control

Author

Guan, Mingxiang ; Yuan, Fang ; Wang, Ruichun

Author_Institution

Dept. of Electron. & Commun. Technol., Shenzhen Inst. of Inf. Technol., Shenzhen, China

fYear

2009

fDate

16-18 Oct. 2009

Firstpage

73

Lastpage

77

Abstract

The load will change drastically when a new user accesses the CDMA system. So the advanced outer loop power control (OLPC) technology will be taken to enrich the target signal interference ratio (SIR) and improve the system performance. The author introduces the ever existed problems about WCDMA outer loop power control for multi-service and analyzes the power control theoretical model. By system simulation the author explains how to obtain the theoretical performance and parameter optimization of power control algorithm. The OLPC algorithm is improved and the performance comparisons between the old algorithm and the improved algorithm are given. The results show the good performance of the improved OLPC algorithm and prove the validity of improved method for multi-service.

Keywords

code division multiple access; interference (signal); telecommunication power supplies; OLPC algorithm; WCDMA system; multi-service; outer loop power control; performance analysis; signal interference ratio; Attenuation; Communications technology; Frequency; Interference; Multiaccess communication; Performance analysis; Power control; Power system modeling; Quality of service; Transmitters; WCDMA; multi-service; outer loop power control; performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Technology and Applications, 2009. ICCTA '09. IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-4816-6

Electronic_ISBN

978-1-4244-4817-3

Type

conf

DOI

10.1109/ICCOMTA.2009.5349234

Filename

5349234