NDLI: The implication of short-range dependency on delay variation measurement

Content Provider	IEEE Xplore Digital Library
Author	Qiong Li Mills, D.L.
Copyright Year	2003
Abstract	Packet delay variation (or delay jitter) measurements are used by applications to estimate the service quality received from the network, or by network operators to monitor network operation states. Since a single jitter measurement takes two delay samples to calculate, the time scale over which the two delay samples are taken may affect the statistics of measured jitter. The current common practice of calculating jitter statistics is by treating all measurements as valid samples of the same sampling space. In this paper, we perform scaling analyses on measured delay sequences to show that the proper way of conducting jitter statistic analysis is by first grouping jitter samples into different clusters each containing samples that are taken over the same or similar time scales, and then carrying out statistic analysis separately on these clusters. This special treatment is desired due to the existence of strong short-range dependency among packet delays, which is introduced by queueing effect. The tool selected to perform the scaling analysis is called Deviation-Lag Function (DLF). We show that some congestion-related information of congested end-to-end paths can be derived from their DLF plots. We also discuss the potential usage of DLF for bottleneck queue detection.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Distributed Process
Starting Page	374
Ending Page	380
File Size	340414
Page Count	7
File Format	PDF
ISBN	0769519385
DOI	10.1109/NCA.2003.1201178
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-04-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Jitter Delay effects Performance analysis Delay estimation Time measurement Statistics Statistical analysis State estimation Monitoring Current measurement
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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