Title :
A dynamic channel allocation algorithm in TDD mode CDMA systems
Author :
Zhang, Jinwen ; Wang, Wenbo
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
fDate :
6/23/1905 12:00:00 AM
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;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956625
