An Experimental Study on Energy Consumption of Video Encryption for Mobile Handheld Devices

Author

Lee, Kyoungwoo ; Dutt, Nikil ; Venkatasubramanian, Nalini

Author_Institution

Sch. of Inf. & Comput. Sci., California Univ., Irvine, CA

fYear

2005

fDate

6-6 July 2005

Firstpage

1424

Lastpage

1427

Abstract

Secure video communication on mobile handheld devices is challenging mainly due to (a) the significant computational needs of both video coding and encryption algorithms and (b) the limited battery capacity of handheld devices. In this paper, we evaluate several video encryption schemes from the perspective of energy consumption both analytically and experimentally. Specifically, we implement video encryption schemes on mobile handhelds to support a H.263 based secure video application, and extensively measure the energy consumption due to encoding and encryption for several classes of video clips. Contrary to popular belief, our experiments show that energy overhead of full video encryption is insignificant compared to the energy consumed for video encoding (between 2% and 4% of total energy cost) in most cases

Keywords

code standards; cryptography; data compression; mobile radio; power consumption; telecommunication security; video coding; video communication; H.263 standard; energy consumption; mobile handheld device; secure video communication; video coding; video encryption; Battery charge measurement; Costs; Cryptography; Encoding; Energy consumption; Energy measurement; Handheld computers; Mobile communication; Mobile computing; Video coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2005. ICME 2005. IEEE International Conference on

Conference_Location

Amsterdam

Print_ISBN

0-7803-9331-7

Type

conf

DOI

10.1109/ICME.2005.1521698

Filename

1521698