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Dissemination of dynamic multimedia content in networked virtual environments

Dissemination of dynamic multimedia content in networked virtual environments
Dissemination of dynamic multimedia content in networked virtual environments
This paper aims to design an infrastructure for distribution of dynamic multimedia objects in a Networked Virtual Environment (NVE) based on a distributed proxy architecture. Dynamic objects (such as audio, video and images) are generated by the users on-the-fly, are often short lived and must be disseminated to others in their area of interest while the application is running. It is expected that a significant portion of network traffic for future NVE applications will be due to these objects. However, because of the upstream bandwidth constraints of clients, a peer-to-peer model for dissemination of these objects is unlikely to be scalable. We develop a distributed server infrastructure for this purpose and produce a mathematical model for optimal establishment of proxy servers, assignment of clients to proxies, and replication pattern of objects among the proxies. The formulation is non-linear (quadratic)in both the objective function and one set of constraints. We provide a technique to linearize the model, which provides the opportunity to solve reasonable size problems for benchmarking. In addition, we provide a fast and efficient heuristic that can be used to obtain near-optimal solutions to the problem in real-time. Finally the paper concludes with computational results showing the performance of the linearization procedure and the heuristic algorithm on randomly generated Internet topologies. It is shown that our heuristic algorithm produces solutions that are within 20% of the optimal.
31-36
Bektas, Tolga
0db10084-e51c-41e5-a3c6-417e0d08dac9
Safaei, Farzad
4ce82942-f085-4aa2-9ce9-7a02e72195f3
Ouveysi, Iradj
00ddfe32-f680-4e21-a519-25cad25d616f
Oguz, Osman
ab1dead8-96df-4aeb-8d2c-a2197619917e
Bektas, Tolga
0db10084-e51c-41e5-a3c6-417e0d08dac9
Safaei, Farzad
4ce82942-f085-4aa2-9ce9-7a02e72195f3
Ouveysi, Iradj
00ddfe32-f680-4e21-a519-25cad25d616f
Oguz, Osman
ab1dead8-96df-4aeb-8d2c-a2197619917e

Bektas, Tolga, Safaei, Farzad, Ouveysi, Iradj and Oguz, Osman (2006) Dissemination of dynamic multimedia content in networked virtual environments. Proceedings of Multicomm 06. 11 Jun 2006. pp. 31-36 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper aims to design an infrastructure for distribution of dynamic multimedia objects in a Networked Virtual Environment (NVE) based on a distributed proxy architecture. Dynamic objects (such as audio, video and images) are generated by the users on-the-fly, are often short lived and must be disseminated to others in their area of interest while the application is running. It is expected that a significant portion of network traffic for future NVE applications will be due to these objects. However, because of the upstream bandwidth constraints of clients, a peer-to-peer model for dissemination of these objects is unlikely to be scalable. We develop a distributed server infrastructure for this purpose and produce a mathematical model for optimal establishment of proxy servers, assignment of clients to proxies, and replication pattern of objects among the proxies. The formulation is non-linear (quadratic)in both the objective function and one set of constraints. We provide a technique to linearize the model, which provides the opportunity to solve reasonable size problems for benchmarking. In addition, we provide a fast and efficient heuristic that can be used to obtain near-optimal solutions to the problem in real-time. Finally the paper concludes with computational results showing the performance of the linearization procedure and the heuristic algorithm on randomly generated Internet topologies. It is shown that our heuristic algorithm produces solutions that are within 20% of the optimal.

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More information

Published date: June 2006
Additional Information: A workshop of the IEEE international conference on communications 2006
Venue - Dates: Proceedings of Multicomm 06, 2006-06-11 - 2006-06-11

Identifiers

Local EPrints ID: 47691
URI: http://eprints.soton.ac.uk/id/eprint/47691
PURE UUID: 6b53c024-6389-4e19-b7be-f8cef9f2d122
ORCID for Tolga Bektas: ORCID iD orcid.org/0000-0003-0634-144X

Catalogue record

Date deposited: 08 Aug 2007
Last modified: 14 Mar 2019 01:39

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Contributors

Author: Tolga Bektas ORCID iD
Author: Farzad Safaei
Author: Iradj Ouveysi
Author: Osman Oguz

University divisions

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