Fundamental trade-offs in aggregate packet scheduling

In this paper, we investigate the fundamental trade-offs in aggregate packet scheduling for support of guaranteed delay service. In our study, we consider two classes of aggregate packet scheduling algorithms: the static earliest time first (SETF) and dynamic earliest time first (DETF). Through thes...

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Vydané v:IEEE transactions on parallel and distributed systems Ročník 16; číslo 12; s. 1166 - 1177
Hlavní autori: Duan, Z., Zhang, Z.-Li, Hou, Y.T.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York IEEE 01.12.2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
aggregate packet scheduling algorithms
Aggregates
Algorithm design and analysis
Algorithms
Delay effects
Diffserv networks
H infinity control
IP networks
Packet scheduling algorithms
Performance analysis
Quality of service
quality of services (QoS)
Scalability
Scheduling algorithm
Scheduling algorithms
Studies
ISSN:1045-9219, 1558-2183
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Shrnutí:In this paper, we investigate the fundamental trade-offs in aggregate packet scheduling for support of guaranteed delay service. In our study, we consider two classes of aggregate packet scheduling algorithms: the static earliest time first (SETF) and dynamic earliest time first (DETF). Through these two classes of aggregate packet scheduling (and together with the simple FIFO packet scheduling algorithm), we show that, with additional timestamp information encoded in the packet header for scheduling purposes, we can significantly increase the maximum allowable network utilization level, while, at the same time, reducing the worst-case edge-to-edge delay bound. Furthermore, we demonstrate how the number of the bits used to encode the timestamp information affects the trade-off between the maximum allowable network utilization level and the worst-case edge-to-edge delay bound. In addition, the more complex DETF algorithms have far superior performance than the simpler SETF algorithms. These results illustrate the fundamental trade-offs in aggregate packet scheduling algorithms and shed light on their provisioning power in support of guaranteed delay service.
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ISSN:1045-9219
1558-2183
DOI:10.1109/TPDS.2005.149