Secure Network Coding for Multi-Resolution Wireless Video Streaming

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

L. Lima (Autor) FEUP; S. Gheorghiu (Autor) Outra; J. Barros (Autor) FEUP; M. Médard (Autor) Outra; A. L. Toledo (Autor) Outra

Revista

Título: IEEE Journal on Selected Areas in Communications

Vol. 28 Nº 3

Páginas: 377-388

ISSN: 0733-8716

Editora: IEEE

Indexação

ISI Web of Science

Scopus

INSPEC

COMPENDEX

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da computação e da informação

Outras Informações

DOI: 10.1109/JSAC.2010.100409

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica