Title :
Time slot allocation in CDMA/TDD systems for mobile multimedia services
Author :
Jeong, Dong Geun ; Jeon, Wha Sook
Author_Institution :
Dept. of Electron. Eng., Hankuk Univ. of Foreign Studies, Kyounggi, South Korea
Abstract :
An important issue in wireless multimedia communications is to cope with the traffic asymmetry between uplink and downlink. The asymmetrical slot allocation in the code division multiple-access systems with time-division duplex mode (CDMA/TDD systems) can be a good solution for this problem. However, the level of traffic asymmetry can be significantly different from cell to cell. In this letter, we calculate the utilization of a CDMA/TDD system for the multicell model. In addition, we suggest an optimal slot allocation that maximizes the frequency utilization.
Keywords :
cellular radio; code division multiple access; multimedia communication; telecommunication traffic; time division multiplexing; CDMA/TDD systems; asymmetrical slot allocation; code division multiple-access systems; downlink; frequency utilization; mobile multimedia services; multicell model; time slot allocation; time-division duplex mode; traffic asymmetry; uplink; wireless multimedia communications; Bandwidth; Downlink; Mobile communication; Multiaccess communication; Multimedia communication; Multimedia systems; Proposals; Radio spectrum management; Resource management; Traffic control;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.824756
