The Research on Admission Control Algorithms in TD-SCDMA Trunking Communications System

Author

Tang, Hong ; Wang, Wei ; Song, Guangxiu ; Liu, Jiezhen ; Yao, Sheng ; Zhang, Yan

Author_Institution

Chongqing Key Lab. of Mobile Commun. Technol., Chongqing Univ. of Posts & Telecommun., Chongqing, China

fYear

2011

fDate

23-25 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

The paper puts forward an improved admission control algorithm for the TD-SCDMA trunking communications system. According to the technical features of TDD (Time Division Duplex) and one downlink channel shared by multi-users in this system, the improved algorithm predicts the power increment of interference through the group´s target SIR (Signal to Interference Ratio) and bandwidth requirement. Then, the system decides that whether the new group be admitted by the increment. The simulation results of dropping rate and admission rate show that the improved algorithm can predict interference increment more accurately, reduces the influence of new call on system, and ensures the coverage of cell.

Keywords

code division multiple access; radiofrequency interference; space division multiple access; telecommunication congestion control; time division multiple access; SIR; TD-SCDMA trunking communications system; TDD; admission control algorithms; downlink channel; interference increment; signal to interference ratio; time division duplex; Admission control; Algorithm design and analysis; Downlink; Interference; Prediction algorithms; Receivers; Time division synchronous code division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing (WiCOM), 2011 7th International Conference on

Conference_Location

Wuhan

ISSN

2161-9646

Print_ISBN

978-1-4244-6250-6

Type

conf

DOI

10.1109/wicom.2011.6036681

Filename

6036681