Title :
Dynamic predictive weighted fair queueing for differentiated services
Author :
Gallardo, José R. ; Makrakis, Dimitrios
Author_Institution :
Dept. of Electron. & Telecommun., CICESE Res. Center, Ensenada, BC, Mexico
Abstract :
The main objective of this paper is to establish that it is not efficient to use weighted fair queueing (WFQ) with a static allocation of bandwidth for the different traffic classes in a differentiated services environment and to propose an extension to WFQ, based on prediction techniques of realistic traffic models, in order to provide it with the necessary adaptability to cope with the dynamic nature of Internet traffic. We call our proposed scheme dynamic predictive weighted fair queueing (DP-WFQ). Its performance is evaluated via simulations. In addition to WFQ, our proposal is also compared to other algorithms, such as WF2Q and LTO-WFQ. Our results show the superior performance of the new algorithm in terms of the number of transmitted packets, buffer overflows, and delay
Keywords :
Internet; bandwidth allocation; buffer storage; delays; packet switching; performance evaluation; prediction theory; queueing theory; telecommunication network planning; telecommunication services; telecommunication traffic; Internet traffic; LTO-WFQ algorithm; QoS guarantees; WF2Q algorithm; WFQ; buffer overflow; delay; differentiated services; dynamic predictive weighted fair queueing; packet transmission; performance evaluation; prediction techniques; simulations; static bandwidth allocation; telecommunication network planning; traffic classes; traffic models; Bandwidth; Buffer overflow; Electronic mail; Internetworking; Laboratories; Predictive models; Quality of service; Queueing analysis; Telecommunication traffic; Traffic control;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.936558
