Title :
A novel code assignment scheme for W-CDMA systems
Author :
Tsuen, Wen ; Wu, Chen Ya-Ping ; Hsiao, Hung-Chang
Author_Institution :
Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fDate :
6/23/1905 12:00:00 AM
Abstract :
The third-generation wideband CDMA (W-CDMA) systems support the relative higher and variable bit rate transmissions for applications with various quality-of-service (QoS) requirements. Code assignment and reassignment schemes in W-CDMA are essential, with the aim of boosting utilization of codes. A dynamic code assignment scheme (DCA) is proposed for traffic with various QoS classes introduced by Universal Mobile Telecommunication System (UMTS). From the simulation results, the proposed DCA can reduce the new call blocking probability and thus improve the system utilization for W-CDMA
Keywords :
bandwidth allocation; cellular radio; channel coding; code division multiple access; probability; quality of service; telecommunication congestion control; telecommunication traffic; QoS; UMTS; Universal Mobile Telecommunication System; W-CDMA; call blocking probability; dynamic code assignment; quality of service; system utilization; traffic; variable bit rate transmissions; wideband CDMA; 3G mobile communication; Bit rate; Computer science; Electronic mail; Hardware; Multiaccess communication; Multicarrier code division multiple access; Quality of service; Transceivers; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956962
