NDLI: QoS control using an end-point CPU capability detector in a secure VoIP system

Content Provider	IEEE Xplore Digital Library
Author	Elbayoumy, A.D. Shepherd, S.J.
Copyright Year	2005
Description	Author affiliation: Sch. of Eng. Design & Technol., Bradford Univ., UK (Elbayoumy, A.D.; Shepherd, S.J.)
Abstract	Security is a serious bottleneck for the future of VoIP. Because of the time-critical nature of VoIP most of the same security measures currently implemented in today's data networks could not be used in VoIP networks. Two main factors affect voice traffic over secure IP channels. The first is the time required to encrypt payload and headers and the construction of the new ones. The second is the increased packet size because of the headers added to the original IP packet. Techniques that could be adopted to overcome these two problems in addition to the compression QoS issues associated with audio codecs put more strain on end-point CPU's. In this paper we propose a new QoS control scheme that uses a simple protocol to detect the end-point CPU capabilities, and according to this information, we choose dynamically the most suitable techniques for the transmission of voice over a secure IP channel to provide a superior QoS control performance, in terms of perceived speech quality.
Starting Page	792
Ending Page	797
File Size	139826
Page Count	6
File Format	PDF
ISBN	0769523730
ISSN	15301346
DOI	10.1109/ISCC.2005.129
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-27
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Control systems Detectors Data security Time factors Current measurement Telecommunication traffic Cryptography Payloads Codecs Capacitive sensors
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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