A strategy for time-slot assignment in TD-CDMA/TDD systems

Author

Cho, Ho-Shin

Author_Institution

Sch. of Electron., Telecommun. & Comput. Eng., Hankuk Aviation Univ., Koyang, South Korea

Volume

2

fYear

2002

fDate

27-30 Oct. 2002

Firstpage

631

Abstract

We consider the TD-CDMA/TDD multiple access scheme to support asymmetrical multimedia traffic between an uplink and downlink. The TD-CDAM/TDD scheme manages two-dimensional channel; time and code. The channel resource is divided by a switching-point on the time axis into uplink and downlink channels. Positioning the switching-point according to traffic load distributions on both uplink and downlink is very important to efficiently manage the channel resource. In this paper, we propose a mathematical model to analyze the performance of TD-CDMA/TDD systems in terms of the call blocking probability and find the optimum switching-point to efficiently manage the channel resource considering the up/down traffic load distributions for various kinds of service applications.

Keywords

code division multiple access; multimedia communication; probability; telecommunication congestion control; time division multiplexing; TD-CDMA/TDD systems; asymmetrical multimedia traffic; call blocking probability; channel resource; downlink; mathematical model; switching-point; time-slot assignment; traffic load distributions; two-dimensional channel; up/down traffic load distributions; uplink; Downlink; Mathematical model; Multimedia computing; Performance analysis; Radio spectrum management; Resource management; Telecommunication computing; Telecommunication switching; Telecommunication traffic; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on

ISSN

1347-6890

Print_ISBN

0-7803-7442-8

Type

conf

DOI

10.1109/WPMC.2002.1088251

Filename

1088251