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Scalable Mobile Multimedia Group Conferencing Based on SIP Initiated SSM

Thomas Schmidt, Matthias Wahlisch, Hans Cycon, Mark Palkow
2007 Fourth European Conference on Universal Multiservice Networks (ECUMN'07)  
Mobility management for the recent SSM standard is under debate SSM group session initiation up until now remains unsupported by the Session Initiation Protocol (SIP).  ...  Multimedia group communication emerges to focal interest at mobile devices, enriching voice or video conferencing and complex collaborative environments.  ...  Conclusions & Outlook In this paper we addressed the essential issues of scalable multimedia group conferences, negotiated by the Session Initiation Protocol and relying on Source Specic Multicast distribution  ... 
doi:10.1109/ecumn.2007.46 dblp:conf/ecumn/SchmidtWCP07 fatcat:z35hhrgkfvee7av3j6zoiogexm

P2P Mobile Multimedia Group Conferencing: Combining SIP, SSM and Scalable Adaptive Coding for Heterogeneous Networks [chapter]

Thomas C. Schmidt, Matthias Wählisch, Hans L. Cycon, Mark Palkow
2007 Lecture Notes in Computer Science  
In this paper we present work in progress on extending multimedia conferencing standards to scalable, mobile multimedia group support based on SIP initiated Source Specific IP Multicast.  ...  We propose extensions of SIP for negotiating SSM sessions. SIP protocol specifications and semantics are compatibly extended without adding new SIP methods.  ...  The Mobile Multimedia Group Conferencing Problem and Related Work Multimedia session-based communication requires a number of initial negotiations to be accomplished.  ... 
doi:10.1007/978-3-540-72590-9_114 fatcat:rfjnkwceh5hape2675uimcdwpa

Distributed SIP conference management with autonomously authenticated sources and its application to an H.264 videoconferencing software for mobiles

Thomas C. Schmidt, Gabriel Hege, Matthias Wählisch, Hans L. Cycon, Mark Palkow, Detlev Marpe
2010 Multimedia tools and applications  
In this paper, we make several contributions towards a generic peer-to-peer (P2P) videoconferencing solution that extends into the mobile realm.  ...  We describe the essential building blocks for conference management and media distribution that are necessary for a distributed conferencing approach.  ...  Acknowledgements Alexander Knauf provided several experimental implementations of the SIP conference focus splitting. This is gratefully acknowledged.  ... 
doi:10.1007/s11042-010-0500-8 fatcat:7cqg25go5baqnimas2gt2dkz3u

Multiparty/multimedia conferencing in mobile Ad Hoc networks for improving communications between firefighters

Moayad Aloqaily, Fatna Belqasmi, Roch Glitho, Amin Hammad
2013 2013 ACS International Conference on Computer Systems and Applications (AICCSA)  
Overall conferencing architecture The SM (leader) and the UAs (the members of its team) are grouped together in a cluster. The SMs and the SSM are also grouped together.  ...  The last group gives an introduction to multimedia conferencing and its technical components.  ... 
doi:10.1109/aiccsa.2013.6616479 dblp:conf/aiccsa/AloqailyBGH13 fatcat:dkpm5bxldzasfir5kfoh7u2icy

A SIP-based conference control framework

Petri Koskelainen, Henning Schulzrinne, Xiaotao Wu
2002 Proceedings of the 12th international workshop on Network and operating systems support for digital audio and video - NOSSDAV '02  
We identify the requirements for conference control and propose a component-based scalable conference control framework employing the Session Initiation Protocol (SIP) and the Simple Object Access Protocol  ...  The framework assumes a single control point, but our architecture can scale to large groups by distributing media via a tree-shaped hierarchy of conference servers.  ...  INTRODUCTION Conference control is one of the core building blocks of the Internet multimedia conferencing architecture.  ... 
doi:10.1145/507670.507679 dblp:conf/nossdav/KoskelainenSW02 fatcat:7kbfaplgm5ckbct5vf5lfedxfa

A SIP-based conference control framework

Petri Koskelainen, Henning Schulzrinne, Xiaotao Wu
2002 Proceedings of the 12th international workshop on Network and operating systems support for digital audio and video - NOSSDAV '02  
We identify the requirements for conference control and propose a component-based scalable conference control framework employing the Session Initiation Protocol (SIP) and the Simple Object Access Protocol  ...  The framework assumes a single control point, but our architecture can scale to large groups by distributing media via a tree-shaped hierarchy of conference servers.  ...  INTRODUCTION Conference control is one of the core building blocks of the Internet multimedia conferencing architecture.  ... 
doi:10.1145/507678.507679 fatcat:bebwx6ouxbcjti7yajcly6urlm

A Light-Weight Implementation Scheme of the Tree Morphing Protocol for Mobile Multicast Sources

Olaf Christ, Thomas C. Schmidt, Matthias Wahlisch
2007 33rd EUROMICRO Conference on Software Engineering and Advanced Applications (EUROMICRO 2007)  
Multicast network services advantageously complement multimedia information and communication technologies, as they open up the realm for highly scalable multicustomer applications.  ...  It is widely believed that simpler and more selective mechanisms for group distribution in Source Specific Multicast (SSM) will globally disseminate to many users of multicast infrastructure and services  ...  In this paper we first discuss the mobile multimedia group conferencing problem and related work. In section 3 we present our signaling protocol for mobile SSM sources.  ... 
doi:10.1109/euromicro.2007.8 dblp:conf/euromicro/ChristSW07 fatcat:u3vgb3ikj5evzgyewqpg3y3zsq

On name-based group communication: Challenges, concepts, and transparent deployment

Thomas C. Schmidt, Matthias Wählisch, Dominik Charousset, Sebastian Meiling
2013 Computer Communications  
Current approaches concentrate on unicast-based pull mechanisms and thereby fall short in automatically updating content at receivers.  ...  These aspects are comprehensively reflected by a group-oriented naming concept that integrates the various available group schemes and introduces new use cases.  ...  By including name-based group access into high-level programming paradigms such as Actors [36, 37] , the distribution of multimedia data will appear natural to the user, while remaining native to the  ... 
doi:10.1016/j.comcom.2013.08.001 fatcat:ducqglivsnchfn4e4wphw6m6qa

Multicasting streaming media to mobile users

A. Dutta, J. Chennikara, W. Chen, O. Altintas, H. Schulzrinne
2003 IEEE Communications Magazine  
This article surveys a set of protocols and technologies that offer multicast-based services for streaming multimedia in a mobile environment.  ...  However, if the end hosts are mobile over heterogeneous wireless access networks, one needs to consider many operational issues such as network detection, handoff, join and leave latency, and desired level  ...  and Session Initiation Protocol (SIP).  ... 
doi:10.1109/mcom.2003.1235599 fatcat:ps3kf6436nh6hcrywsigrzqcxu

Fast adaptive routing supporting mobile senders in Source Specific Multicast

Thomas C. Schmidt, Matthias Wählisch, Maik Wodarz
2009 Telecommunications Systems  
Extensive evaluations based on a full protocol implementation, and simulations based on real-world topology data are performed, granting full insight into the properties of packet loss and delay stretch  ...  In this paper, we propose the Enhanced Tree Morphing (ETM) protocol for extending SSM routing to mobile multicast sources.  ...  We first introduce and discuss the mobile multimedia group conferencing problem and related work. In Sect. 3, we present the core protocol. A thorough evaluation follows in Sect. 4.  ... 
doi:10.1007/s11235-009-9200-y fatcat:knldsr4hvrg65mltrudngv3bf4

Networked Multimedia with Internet Media Guides

Jörg Ott, Dirk Kutscher, Janico Greifenberg, Kevin Loos
2005 Computational Methods in Science and Technology  
Conferencing Architecture-based media broadcast (IMCA) [HCBO99] to a generalised, integrated media broadcast environment.  ...  multimedia sessions.  ...  between universities, based on Mbone multicast connectivity, research projects have developed and validated architectures and applications for multimedia conferencing, tele-learning, and IP telephony.  ... 
doi:10.12921/cmst.2005.11.02.129-139 fatcat:m63gf4r76rgxnmf7uwglsad5a4

In this issue

2015 Journal of family planning and reproductive health care  
For his PhD he studied multicast-based multimedia conferencing systems, and was technical director of the European Union funded "MICE" and "MERCI" multimedia conferencing projects.  ...  Multimedia Internet Keying (MIKEY) is targeted at real-time multimedia communications, particularly those using the Secure RTP, and can be tunneled over the Session Initiation Protocol (SIP) [45] .  ...  The first one discusses the basic background needed to understand the rest of the book.  ... 
doi:10.1136/jfprhc-2015-101421 fatcat:4pj2fty4jbfuhj4qtyo5jklpn4

Real-time and content-aware applications and infrastructure: a holistic approach dealing with architectural, performance and security issues

Roberta Presta
2013
We propose a framework for the performance optimization of content-delivery based on the awareness of the contents to be delivered, as well as of the users' behavior in terms of mobility, request patterns  ...  In the second part of the thesis, we focus on Content-Oriented Applications, once again basing our work on a study of current architectural and performance challenges.  ...  One of the first RAI Working Group (WG) attempting to standardize the multimedia conferencing service was the Session Initiation Proposal Investigation (SIPPING) WG.  ... 
doi:10.6092/unina/fedoa/9396 fatcat:6efb6edqzfbgzgqqayuu3alcii

Mobility support in IP Cellular Networks [article]

Andreas Festag, Technische Universität Berlin, Technische Universität Berlin, Adam Wolisz
2003
Today's cellular communication networks offer seamless mobility support but are based on a homogeneous networking technology and a complex voice-oriented networking infrastructure.  ...  with the number of multicast groups.  ...  Information is pushed to the users on these channels upon appearance of proper events. • Audio-and video-conferencing and group collaboration applications: These applications are based on mechanisms that  ... 
doi:10.14279/depositonce-784 fatcat:drguy7lxi5hgjo5hphvwptt3yq

Voice over Application-Level Multicast

N. Blundell, N. Egi, L. Mathy
2006 IEEE International Performance Computing and Communications Conference  
However, the problem of realising Internet media streaming applications that can support efficient and scalable group communication is actually a non-trivial problem -since the Internet was never designed  ...  Laurent Mathy, Towards (Perceived) Latency Minimisation in Audio-Conferencing Systems over Application-Level Multicast, in  ...  ( 2 ) Join(3) Join (4) Session Initiation Protocol Session Initiation Protocol (SIP) has been proposed by the Multiparty Multimedia SessIon Control (MMUSIC) working group of the IETF to address the  ... 
doi:10.1109/.2006.1629468 dblp:conf/ipccc/BlundellEM06 fatcat:s5lfphlksvhyjozulxyusbaf4u
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