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Journal of Electrical and Computer Engineering - Volume 2015 2015, Article ID 548638, 7 pages -

Research Article

Department of Informatics, King’s College London, London WC2R 2LS, UK

School of Science and Technology, Middlesex University, London NW44BT, UK

Halmstad University, 301 18 Halmstad, Sweden

Received 20 May 2015; Accepted 26 July 2015

Academic Editor: Peppino Fazio

Copyright © 2015 Fragkiskos Sardis et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Supporting high quality multimedia streaming on wireless devices poses several challenges compared to wired networks due to the high variance in network performance encountered in the mobile environment. Although rate adaptation is commonly used in multimedia applications to compensate for fluctuations in network performance, it is a reactive mechanism which is not aware of the frequently changing connectivity that may occur on mobile devices. This paper proposed a performance evaluation model for multimedia streaming applications that is aware of user mobility and network performance. We presented an example of mathematical solution to the model and demonstrated the functionality using common mobility and connectivity examples that may be found in an urban environment. The proposed model is evaluated based on this functionality and how it may be used to enhance application performance.

Autor: Fragkiskos Sardis, Glenford Mapp, Jonathan Loo, Mahdi Aiash, and Alexey Vinel



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