Title :
An adaptive time slot allocation strategy for W-CDMA/TDD system
Author :
Lee, Jiwoong ; Han, Youngnam ; Kwon, Dongseund
Author_Institution :
Inf. & Commun. Univ., South Korea
Abstract :
The code division multiple access system with time division duplex mode (CDMA/TDD) where the same frequency allocation is made for both uplink and downlink is a good solution when the traffic asymmetry between uplink and downlink exists. However, when the asymmetry of each cell may be significantly different from each other, the traffic may experience severe interference from each other when each cell´s own slot allocation is made according to the level of traffic asymmetry in each cell. The interference in the W-CDMA/TDD system when the slot allocations are made according to traffic patterns of each cell is analyzed, and a time slot allocation scheme considering the traffic asymmetry is proposed. In this paper, system performances are simulated under the proposed time slot allocation strategy and its optimal operation of the strategy is investigated
Keywords :
cellular radio; code division multiple access; radiofrequency interference; telecommunication traffic; time division multiplexing; W-CDMA/TDD system; adaptive time slot allocation strategy; adjacent cell interference; cellular radio; code division multiple access system; downlink; interference; time division duplex mode; traffic asymmetry; uplink; Bandwidth; Downlink; Electronic mail; Interference; Land mobile radio; Multiaccess communication; Radio frequency; Radio spectrum management; Resource management; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944053
