Energy efficient watermarking on mobile devices using proxy-based partitioning

Digital watermarking embeds an imperceptible signature or watermark in a digital file containing audio, image, text, or video data. The watermark can be used to authenticate the data file and for tamper detection. It is particularly valuable in the use and exchange of digital media, such as audio an...

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Bibliographic Details
Published in:IEEE transactions on very large scale integration (VLSI) systems 2006-06, Vol.14 (6), p.625-636
Main Authors: Kejariwal, A., Gupta, S., Nicolau, A., Dutt, N.D., Gupta, R.
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
Cellular phones
Communication system security
Computer science
Computers, microcomputers
Cryptography
Devices
Electronics
Energy consumption
Energy efficiency
Exact sciences and technology
Handheld computers
Hardware
Information, signal and communications theory
Internet
mobile computing
partitioning
Partitioning algorithms
Product introduction
Protection
Proxy client servers
Security
Signal and communications theory
Studies
Telecommunications and information theory
Very large scale integration
Watermarking
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Summary:Digital watermarking embeds an imperceptible signature or watermark in a digital file containing audio, image, text, or video data. The watermark can be used to authenticate the data file and for tamper detection. It is particularly valuable in the use and exchange of digital media, such as audio and video, on emerging handheld devices. However, watermarking is computationally expensive and adds to the drain of the available energy in handheld devices. In this paper, we first analyze the energy profile of various watermarking algorithms. We also study the impact of security and image quality on energy consumption. Second, we present an approach in which we partition the watermarking embedding and extraction algorithms and migrate some tasks to a proxy server. This leads to a lower energy consumption on the handheld without compromising the security of the watermarking process. Experimental results show that executing the watermarking tasks that are partitioned between the proxy and the handheld devices, reduces the total energy consumed by 80%, and improves performance by two orders of magnitude compared to running the application on only the handheld device
ISSN:1063-8210
1557-9999
DOI:10.1109/TVLSI.2006.878218