Title :
A strategy for time-slot assignment in TD-CDMA/TDD systems
Author_Institution :
Sch. of Electron., Telecommun. & Comput. Eng., Hankuk Aviation Univ., Koyang, South Korea
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;
Conference_Titel :
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Print_ISBN :
0-7803-7442-8
DOI :
10.1109/WPMC.2002.1088251
