A dynamic channel allocation algorithm in TDD mode CDMA systems

Author

Zhang, Jinwen ; Wang, Wenbo

Author_Institution

Beijing Univ. of Posts & Telecommun., China

Volume

1

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

385

Abstract

In the 3G mobile communication systems, the services consist of symmetric services such as voice service and asymmetric services such as WWW browsing. The TDD mode CDMA systems can adapt itself well to time varying asymmetric traffic. In this paper, a new dynamic channel allocation (DCA) model based on Markov decision programming (MDP) has been established to dynamically adapt the switching point in the TDD radio frame according to the states of the system. Simulation results have shown that it will decrease the system blocking rate and increase the resource usage compared with the fixed channel allocation (FCA) scheme.

Keywords

Markov processes; cellular radio; channel allocation; code division multiple access; telecommunication traffic; time division multiplexing; 3G mobile communication; DCA; Markov decision programming; TDD-CDMA systems; WWW browsing; asymmetric services; dynamic channel allocation algorithm; resource usage; simulation results; symmetric services; system blocking rate; time varying asymmetric traffic; voice service; 3G mobile communication; Channel allocation; Downlink; Dynamic programming; Heuristic algorithms; Multiaccess communication; Multimedia systems; Telecommunication traffic; Traffic control; World Wide Web;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th

ISSN

1090-3038

Print_ISBN

0-7803-7005-8

Type

conf

DOI

10.1109/VTC.2001.956625

Filename

956625