Fairness of scheduling algorithms for Real-time UMTS traffic in case of IP Link Congestion (CROSBI ID 584577)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Zorić, Slađana ; Kos, Mladen ; Bajrić, Himzo
engleski
Fairness of scheduling algorithms for Real-time UMTS traffic in case of IP Link Congestion
In order to achieve end-to-end Quality of Service for next generation of mobile phones that will be all-IP based, IP QoS mechanism such as DiffServ should be applied to UMTS technology. A mapping of UMTS classes to DiffServ Code Points can be used in order to get efficient PHB configurations. DiffServ have limitation problems regarding implementation of PHB groups and choosing the appropriate traffic scheduling algorithm. This paper presents evaluation results of a simulation based study on the fairness of traffic scheduling algorithms for UMTS real time traffic that passes through UMTS core network and external IP backbone network, based on DiffServ. In this paper link congestion effect on critical performance metrics of conversational and streaming traffic classes is investigated in case that WFQ, WRR, PRI and LLQ are implemented as schedulers at network nodes. The aim of simulation is to determine which scheduling algorithm has the best performances and provides IPTD, IPDV and IPLR for conversational and streaming traffic classes below standard defined values, but not to completely exhaust bandwith for interactive and background traffic classes.
QoS; DiffServ; Scheduling; WRR; WFQ; PRI; LLQ
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
2011.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 3rd International Congress on Ultra Modern Telecommunications and Control Systems - ICUMT 2011
978-1-4577-0682-0
2157-0221
Podaci o skupu
ICUMT 2011 - 3rd International Congress on Ultra Modern Telecommunications and Control Systems
predavanje
05.10.2011-07.10.2011
Budimpešta, Mađarska