Title :
Analytical model of a differentiated service scheme over wireless IP links
Author :
Gyasi-Agyei, Amoakoh ; Coutts, R.P.
Author_Institution :
Dept. of Electr. & Electron. Eng., Adelaide Univ., SA, Australia
Abstract :
With the advent of multiservice mobile wireless Internet systems, there is a recent interest in the design, modeling and analysis of architectures that can support differing types of network traffic. This article analyses the performance of a differentiated service model for IP based wireless networks. The model accounts for a wireless link´s features, such as fading, which causes link drop outs as well as random and burst errors in a different form to fixed networks. Network traffic is classified into QoS classes and given differentiated services based on buffer sharing and buffer share proportional scheduling rates. The resulting queuing system is analyzed using matrix analytic methods. Numerical investigations show that the model can guarantee low loss and low queuing delays simultaneously to packets of a given traffic class. The analyzed traffic classes map one-to-one onto 3G (UMTS) QoS classes.
Keywords :
3G mobile communication; Internet; buffer storage; delays; fading channels; integrated voice/data communication; matrix algebra; mobile computing; mobile radio; packet radio networks; protocols; quality of service; queueing theory; scheduling; telecommunication traffic; 3G mobile communication; QoS classes; UMTS; buffer sharing; burst errors; data communication; differentiated service scheme; fading; matrix analysis; mobile Internet systems; multiservice systems; network traffic; proportional scheduling rates; protocols; queuing delays; random errors; voice communication; wireless IP links; wireless Internet systems; 3G mobile communication; Analytical models; Delay; Fading; IP networks; Performance analysis; Queueing analysis; Telecommunication traffic; Traffic control; Wireless networks;
Conference_Titel :
Networks, 2002. ICON 2002. 10th IEEE International Conference on
Print_ISBN :
0-7803-7533-5
DOI :
10.1109/ICON.2002.1033315