Secure Network Coding for Multi-Resolution Wireless Video Streaming
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Medard_Secure network.pdf
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3.3 MB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Medard, Muriel
Barros, Joao
Gheorghiu, Steluta
Lima, Luísa
Lopez Toledo, Alberto
Date Issued
April 2010
Journal
IEEE Journal on Selected Areas in Communications
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
Médard, Muriel et al. “Secure Network Coding for Multi-resolution Wireless Video Streaming.” IEEE Journal on Selected Areas in Communications 28.3 (2010): 377–388. © 2010 IEEE.
Version
Final published version
Abstract
Emerging practical schemes indicate that algebraic mixing of different packets by means of random linear network coding can increase the throughput and robustness of streaming services over wireless networks. However, concerns with the security of wireless video, in particular when only some of the users are entitled to the highest quality, have uncovered the need for a network coding scheme capable of ensuring different levels of confidentiality under stringent complexity requirements. We show that the triple goal of hierarchical fidelity levels, robustness against wireless packet loss and efficient security can be achieved by exploiting the algebraic structure of network coding. The key idea is to limit the encryption operations to a critical set of network coding coefficients in combination with multi-resolution video coding. Our contributions include an information-theoretic security analysis of the proposed scheme, a basic system architecture for hierarchical wireless video with network coding and simulation results.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/jsac.2010.100409
