NDLI: Quick and simultaneous estimation of available bandwidth and effective UDP throughput for real-time communication

Content Provider	IEEE Xplore Digital Library
Author	Oshiba, T. Nakajima, K.
Copyright Year	2011
Description	Author affiliation: Service Platforms Research Laboratories, NEC Corporation, Japan (Oshiba, T.; Nakajima, K.)
Abstract	We propose a method, called PathQuick2, for quickly and simultaneously estimating both of the available bandwidth that is unused capacity of an end-to-end path and the effective UDP throughput that is the receiving rate of an UDP flow which can pass through the path, with a single measurement. In PathQuick2, a sender transmits a probing packet train (i.e., a set of multiple probing packets) that each packet is placed at an equal time interval, and each packet size increases as the packet sequence proceeds. A receiver produces the estimated available bandwidth and the estimated effective UDP throughput at the same time from the single packet train. To this end, the receiver detects a packet at which the observed time intervals begin increasing, and the per-packet receiving rate becomes the estimated available bandwidth. Then, the receiver detects a packet at which the observed per-packet receiving rates stop increasing even if the packet sequence proceeds, and the per-packet receiving rate becomes the estimated effective UDP throughput. Our evaluation of PathQuick2 has shown that its estimation duration is only 182 ms, and its probing load is about 90 kB which is more than 160 times as light as a direct measurement of effective UDP throughput. PathQuick2 can provide two useful metrics for real-time communication applications such as video chat and video conferencing; the available bandwidth indicates an upper limit of video sending rate which enables stable video communication without packet loss, and the effective UDP throughput indicates an upper limit of video receiving rate that can pass through an end-to-end path, with a given video sending rate.
Starting Page	1123
Ending Page	1130
File Size	553332
Page Count	8
File Format	PDF
ISBN	9781457706806
ISSN	15301346
e-ISBN	9781457706813
e-ISBN	9781457706783
DOI	10.1109/ISCC.2011.5983856
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-28
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	effective UDP throughput available bandwidth
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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