On energy efficient encryption for video streaming in wireless sensor networks

Wei Wang, Michael Hempel, Dongming Peng, Honggang Wang, Hamid Sharif, Hsiao Hwa Chen

Research output: Contribution to journalArticle

38 Scopus citations

Abstract

Selective encryption for video streaming was proposed for efficient multimedia content protection. However, the issues on joint optimization of video quality, content protection, and communication energy efficiency in a wireless sensor network (WSN) have not been fully addressed in the literature. In this paper, we propose a scheme to optimize the energy, distortion, and encryption performance of video streaming in WSNs. The contribution of this work is twofold. First, a channel-aware selective encryption approach is proposed to minimize the extra encryption dependency overhead at the application layer. Second, an unequal error protection (UEP)-based network resource allocation scheme is proposed to improve the communication efficiency at the lower layers. Simulation experiments demonstrate that the proposed joint selective encryption and resource allocation scheme can improve the video transmission quality significantly with guaranteed content protection and energy efficiency.

Original languageEnglish (US)
Article number5466233
Pages (from-to)417-426
Number of pages10
JournalIEEE Transactions on Multimedia
Volume12
Issue number5
DOIs
StatePublished - Aug 2010

Keywords

  • Cross layer approach
  • resource allocation
  • video selective encryption
  • wireless sensor network

ASJC Scopus subject areas

  • Signal Processing
  • Media Technology
  • Computer Science Applications
  • Electrical and Electronic Engineering

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