Phd thesis defense humberto j abdelnur henri poincaré university - nancy 1 background motivation challenges voice over ip telephony (voip) humberto j abdelnur 4 voip intelligence distributed over the equipments packet-switched network evolution depends on software upgrades pstn. Voice over ip (voip) cyber-attacks are on the rise these attacks use the session initiation protocol (sip) and accounted for more than half of all security event activities over the past year sip is the most commonly used application-layer protocol technology in fact, it has been in use since voip technology. Theses the thesis and phd dissertations are the capstone achievements of a student's academic endeavors at nps a permanent copy of these documents are adams, c m, voip quality measurements in a multilevel secure (mls) environment, masters thesis, naval postgraduate school, monterey, california,. Optimizing the qos of voip applications over wifi through thesis addresses a dual approach of simulation and real-world experimentation is taken the former is used to validate the core idea whereas the latter the undertaking of this phd has been a time of many ups and downs in my academic, so. C technica 529 esa piri improving heterogeneous wireless networking with cross-layer information services academic dissertation to be presented with the assent of the doctoral training committee of technology and natural sciences of the university of oulu for public.
Department of informatics reducing latency in internet access links with mechanisms in endpoints and within the network phd thesis naeem khademi may 28, 2015 voice-over-ip (voip), skype, online gaming and even popular web traffic this forms a major challenge for the internet today, where buffer sizes. A study of voip performance in anonymous network - the onion routing (tor) dissertation for the award of the degree “doctor rerum naturalium (drrernat)” of the georg-august-university göttingen within the doctoral programme in computer science (pcs) of the georg-august university school of. Voice over ip (voip) is defined as the transport of voice as packets over ip based networks therefore, voip can be achieved on any data network that uses ip, such as describe a secure voip call pattern as well as three other different patterns topic of his doctoral dissertation is “voip network security and forensic.
We advice students to go through different universities in europe and to see the master and phd theses in these universities to see the impact of bg updates on voip calls qos in ns-2 environment blerina topciu 5 semantic search and its integration with an e-learning platform dorian kokoshi theses 15 6. The dissertation follows a five-course model, for answering different questions, both tech- nical and businesslike, around central issues, that have been crucial to explanation of the topic starting with a general overview of voip tech- nology, analyzing current voip encryption methods, identifying security. Ic a tio n s a a lto u n ive rs ity communicationsandnetworking framework architecturefor decentralized communications jounimäenpää doctoral dissertations a doctoral dissertation completed for the degree of doctor of science the session initiation protocol (sip) to decentralize its functions p2psip is.
Voip quality measurement: recommendation of mos and enhanced objective measurement method for standard thai spoken language mr therdpong daengsi a thesis submitted in partial fulfillment of the requirements for the degree of doctor of. Loughborough university institutional repository secure voip performance measurement this item was submitted to loughborough university's institutional repository by the/an author additional information: • a doctoral thesis submitted in partial fulfilment of the requirements for the award of doctor.
February 2004, before the united states senate the objective of this thesis is to study how voip challenges the incumbent us telecommunications act the appearance of voip comes at a juncture when telecommunications system has already turned into a large-scale, complex system with multiple,. Voice over ip (voip) is increasingly displacing traditional voice tele- phony services, but the ip networks that carry the traffic are inherently prone to delays and losses that impact the voice quality this thesis ad- dresses those quality degradations with particular emphasis on wireless networks.
Thesis convergence of telecommunications, media and information technology sectors and its impact upon the ways of doing business by mehmet name of second reader, phd (voip) is an example of such services it disrupted the traditional voice services and facilitated. The doctoral training committee of technology and natural sciences of the applications, such as dci (data center interconnect), voice over ip (voip) and videoconferencing services due to their of this thesis is to develop secure and scalable vpls architectures for future communication networks.
The combination of wireless networks and free voip services is very popular, however its limitations in security and giving me the opportunity and support to pursue this phd his encouragement and insights hence, in this thesis, speech prediction is considered when improving voip com- munications implementing a. The phd journey is different for everyone but always full of experiences and lessons the biggest lesson for me in this thesis, we present jtp, a new energy -aware transport protocol, whose goal is to reduce power but delay is not a concern, while a voip application requires low delay and reliability is less important. Honours and masters by coursework thesis topics for students interested in further study in computer science, it, computer engineering and games technology. Phd thesis voip streaming over packet-based networks mirko luca lobina advisor: prof luigi atzori university of electrical and electronic engineering cagliari.
Tkk dissertations 184 espoo 2009 a study of mobile voip performance in wireless broadband networks doctoral dissertation andres arjona dissertation for the degree of doctor of science in technology to be presented with due permission of the faculty of information and natural. Full-text paper (pdf): bandwidth calculation for voip networks based on pstn statistical model this paper shows an analysis how to calculate proper bandwidth for voip calls after proper dimensioning of pstn network for this connection-based network access technologies,” phd dissertation, virginia poly. The voice over internet protocol (voip) is on its way to surpassing toll quality although voip shares its transmission channel with other communication traffic, today internet has a wider bandwidth than the legacy digital loop carrier and voice could be digitized higher than traditional 8 kbps, to say 16 kbps thus, voip. E myakotnykh, adaptive speech quality in voice-over-ip communications, degree of philosophy phd dissertation, information science and telecommunications, university of pittsburg 2008  tasuka, voip with sip [ 4] j cumming, sip market overview, 2003  g americas, why sip-i: a switching core protocol.