Title :
A dynamic rate assignment scheme for data traffic in cellular multi-code CDMA networks
Author :
Shu, Tao ; Niu, Zhisheng
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
6/24/1905 12:00:00 AM
Abstract :
By using Gaussian approximation, the optimal number of simultaneous transmissions which maximizes system throughput in multi-code CDMA networks is derived as a function of system parameters including the processing gain, the packet length, and the correctable bit number. Based on this optimal number of simultaneous transmissions and the queue length of each user, a dynamic rate assignment scheme is proposed to support data users with different rate requirements while improving the system resource utilization efficiency. By numerical example the efficiency of the proposed scheme is verified.
Keywords :
Gaussian distribution; cellular radio; code division multiple access; integrated voice/data communication; multimedia communication; optimisation; packet radio networks; quality of service; queueing theory; telecommunication traffic; variable rate codes; Gaussian approximation; QoS; cellular networks; correctable bit number; data users; dynamic rate assignment; future wireless networks; multi-code CDMA networks; multimedia traffic; optimal simultaneous transmissions; packet length; processing gain; quality of service; queue length; system resource utilization efficiency; system throughput maximization; Cellular networks; Gaussian approximation; Intelligent networks; Multiaccess communication; Multicarrier code division multiple access; Resource management; Streaming media; Telecommunication traffic; Throughput; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002600
