Modeling and assessing secure Voice over IP performance
Name
62558267-MIT.pdf
Description
Full printable version
Size
10.64 MB
Format
Adobe PDF
Checksum (MD5)
376e7fa414fae471e742d5a869682131
Author(s)
Zue, Cory L
Advisor(s)
Robert K. Cunningham.
Alternative Title
Performance of Voice-Over Internet Protocol in airborne networks
Date Issued
2005
Publisher
Massachusetts Institute of Technology
Abstract
Voice over Internet Protocol (VoIP) systems enable efficient communications over data networks, but security of VoIP and the impact of that security on communications quality has not been quantitatively modeled. A conversational model is adapted for VoIP and a computational model of communication quality - the Z-Model - is developed. VolIP conversations are simulated for networks with a range of performance characteristics including differing bandwidth, latency and bit error rates to evaluate the impact of security on communication quality. Results show that improving conficlentiality via encryption of conversation data packets does not introduce significant delays, but does increase bandwidth. In certain restricted-bandwidth environments this results in dramatic reductions of perceived conversation quality.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.
Includes bibliographical references (p. 102-106).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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