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Trust and Stability in Heterogeneous Multimedia Networks

Trust and Stability in Heterogeneous Multimedia Networks

Dimitrios Koukopoulos
Copyright: © 2010 |Pages: 43
ISBN13: 9781615206827|ISBN10: 1615206825|EISBN13: 9781615206834
DOI: 10.4018/978-1-61520-682-7.ch016
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MLA

Koukopoulos, Dimitrios. "Trust and Stability in Heterogeneous Multimedia Networks." Trust Modeling and Management in Digital Environments: From Social Concept to System Development, edited by Zheng Yan, IGI Global, 2010, pp. 378-420. https://doi.org/10.4018/978-1-61520-682-7.ch016

APA

Koukopoulos, D. (2010). Trust and Stability in Heterogeneous Multimedia Networks. In Z. Yan (Ed.), Trust Modeling and Management in Digital Environments: From Social Concept to System Development (pp. 378-420). IGI Global. https://doi.org/10.4018/978-1-61520-682-7.ch016

Chicago

Koukopoulos, Dimitrios. "Trust and Stability in Heterogeneous Multimedia Networks." In Trust Modeling and Management in Digital Environments: From Social Concept to System Development, edited by Zheng Yan, 378-420. Hershey, PA: IGI Global, 2010. https://doi.org/10.4018/978-1-61520-682-7.ch016

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Abstract

In this chapter, the author views trust as the confidence in the association of a stable network execution to the efficient distribution of multimedia products in the final user. A network is stable under a greedy protocol (or a composition of protocols) if, for any adversary of injection rate less than 1, the number of packets in the network remains bounded at all times. The author focuses on a basic adversarial model for packet arrival and path determination for which the time-averaged arrival rate of packets requiring a single edge is no more than 1. Within this framework, the author studies the property of stability under various compositions of contention-resolution protocols and different packet trajectories trying to characterize this property in terms of network topologies. Furthermore, the author enhances the adversary allowing the monitoring of network link capacities/slowdowns. Within this context, the author shows how the stability properties of network topologies change when network link slowdowns/capacities can change dynamically. Interestingly, his results indicate that a composition of protocols leads to worst stability behaviour than having a single unstable protocol for contention-resolution. This suggests that the potential for instability incurred by the composition of protocols may be worse than that of some single protocol. Consequently, this study could help on the design and maintainance of trustworthy heterogeneous multimedia systems.

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