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voip
(2512 results)-
White Papers
Dynamic Codec Selection Algorithm for VoIP
July 11, 2011 12:00am PDT
This paper gives a proposal on algorithm for adaptive adjustment of VoIP sources transmission rate based on voice quality estimated at the receiver. This adjustment is achieved through the...
Provided by: IARIA
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White Papers
User Utility Function as Quality of Experience (QoE)
July 11, 2011 12:00am PDT
The realization of a user-centric paradigm will revolutionize future wireless networks. For this innovative concept to materialize, a paradigm shift is required from a long-term contractual based...
Provided by: IARIA
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White Papers
An Analytic and Experimental Study on the Impact of Jitter Playout Buffer on the E-Model in VoIP Quality Measurement
July 11, 2011 12:00am PDT
Over the years, the quality in Voice over IP (VoIP) applications has been defined from the perspective of VoIP service providers but not necessarily from the perspective of end-users....
Provided by: IARIA
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White Papers
SIP Providers' Awareness of Media Connectivity
July 11, 2011 12:00am PDT
Voice-over-IP (VoIP) has become an important service in the Internet. In contrast to the Public Switched Telephone Network where the delivery of all messages and streams is the responsibility of...
Provided by: IARIA
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White Papers
Improving SIP Authentication
July 11, 2011 12:00am PDT
The digest access authentication method used in the voice over IP signaling protocol, SIP, is weak. This authentication method is the only method with mandatory support and widespread adoption in...
Provided by: IARIA
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White Papers
Implementing a VoIP SIP Server and User Agent on a Bare PC
July 11, 2011 12:00am PDT
Bare PC applications run on ordinary desktops and laptops without the support of an operating system or kernel. The authors provide immunity against attacks targeting an underlying operating...
Provided by: IARIA
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Whitepapers
Alcatel-Lucent IMS Security: Providing a Trusted Foundation
July 6, 2011 12:00am PDT
Security remains a top priority for service providers as threats continue to evolve, with service providers battling to defend against the increasing volume and sophistication of spam, spyware and...
Provided by: Alcatel-Lucent
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White Papers
Transmission of Delay Sensitive Data Over Non- QoS Enabled WANs
July 1, 2011 12:00am PDT
Vendors of Voice Over IP (VOIP) and other delay sensitive systems have always marketed their products with the stipulation that performance could be drastically affected unless end-to-end Quality...
Provided by: Cyber Journals
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White Papers
DHOSPF: Adaptive Parallel Routing Table Computation for Next Generation Routers
July 1, 2011 12:00am PDT
Fast convergence in Interior Gateway Protocol (IGP) is certainly critical to the widespread deployment of real time applications (such as, VOIP, IPTV, etc.). Many improvements for OSPF (Open...
Provided by: Tsinghua University
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White Papers
Location Based Performance of WiMAX Network for QoS With Optimal Base Stations (BS)
July 1, 2011 12:00am PDT
In this paper, the authors are given concept of their WiMAX (Worldwide Interoperability for Microwave Access) network performance for QoS monitoring and optimization solution for BS (Base Station)...
Provided by: Scientific Research
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Whitepapers
Transport Layer Protocols Taxonomy From Voice Over IP Perspective
July 1, 2011 12:00am PDT
VoIP technology is becoming increasingly important as they gain market share in PSTN technology. In the short run, it is likely that VoIP technology will dominate the telecommunications market....
Provided by: Universiti Sains Malaysia
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White Papers
Flash-Based Audio and Video Communication in the Cloud
June 30, 2011 12:00am PDT
Internet telephony and multimedia communication protocols have matured over the last fifteen years. Recently, the web is evolving as a popular platform for everything the authors do on the...
Provided by: Illinois Institute of Technology
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Whitepapers
Enhancement of Qos of WLAN by Improving Handoff Speed Using an Efficient COA Assignment
June 27, 2011 12:00am PDT
The increasing demand for broadband services such as VOIP is causing the cellular network providers to provide various added features in the mobile node. Mobile IP protocol has been designed to...
Provided by: EuroJournals
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Webcasts
Don Reed: The Road From Here To VERGE
June 22, 2011 12:00am PDT
In this webcast, the presenter explains how the convergence of technologies demands that companies adopt new strategies and programs to capitalize on the new opportunities for innovation, from the...
Provided by: GreenBiz Group
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Webcasts
Stephan Dolezalek: "We Know How This Movie Ends. We Just Don't Know The Plot."
June 22, 2011 12:00am PDT
In this webcast, the presenter discusses about the VERGE 11 San Francisco Roundtable with an overview of how the convergence of VERGE technologies mirrors - and is different from - the Internet...
Provided by: GreenBiz Group
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Webcasts
Rodrigo Prudencio: The Open Electron: Why Energy Connectivity Matters
June 22, 2011 12:00am PDT
The presenter provides insights into how the world of energy is transforming - into what the presenter calls "The open electron" - and the implications for the convergence of energy, information,...
Provided by: GreenBiz Group
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White Papers
Performance Optimization of Mobile WiMAX Netwoks for VoIP Streams
June 22, 2011 12:00am PDT
Supporting as many VoIP (Voice over Internet Protocol) users as possible in a BWA (Broadband Wireless Access) network, using limited radio resources is a very important issue that could lead the...
Provided by: Universidad Nacional Autonoma de Mexico
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White Papers
Dual Averaging for Distributed Optimization: Convergence Analysis and Network Scaling
June 17, 2011 12:00am PDT
The goal of decentralized optimization over a network is to optimize a global objective formed by a sum of local (possibly non-smooth) convex functions using only local computation and...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
The Impact of UTP on BitTorrent Completion Time
June 16, 2011 12:00am PDT
BitTorrent, one of the most widespread file sharing P2P applications, recently introduced uTP, an application-level congestion control protocol which aims to efficiently use the available link...
Provided by: Telecom ParisTech
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White Papers
Modeling Call Arrivals on VoIP Networks as Linear Gaussian Process Under Heavy Traffic Condition
June 15, 2011 12:00am PDT
The authors propose a new model for call arrival process on VoIP tandem networks under heavy traffic condition. Based on empirical evidence, such call arrivals can be modeled as linear Gaussian...
Provided by: DePaul University
