NDLI: Architecture for asymmetric P2P group communication

Please wait, while we are loading the content...

Architecture for asymmetric P2P group communication

Content Provider	ACM Digital Library
Author	Schierl, Thomas Wiegand, Thomas Singh, Varun Globisch, Ralf
Abstract	In asymmetric group communication, active participants create the multimedia content, while the dormant/passive participant interactively consumes it. This use-case is visible in remote teaching, seminars and conferences. Asymmetric group communication imposes strict timing requirements that directly impact on the Quality of Service (QoS). We use Application Layer Multicast (ALM) to disseminate media from the active speaker to all other conference participants. The ALM tree network minimizes the end-to-end (e2e) delay and reduces the load on the active participants. We propose a system that enables the setup of an asymmetric group communication system using the SIP 3rd party call control (3PCC) mechanism. This facilitates the negotiation and setup of the forwarding relationships between peers to distribute media to all conference participants. We evaluate the maximum outage caused by tree reconstruction and provide a mechanism to make it performant.
Starting Page	1
Ending Page	6
Page Count	6
File Format	PDF
ISBN	9781450309752
DOI	10.1145/2124436.2124442
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2011-08-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Alm Conferencing Sip Sdp P2p Rtp
Content Type	Text
Resource Type	Article

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