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voip
(2512 results)-
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
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White Papers
A Study of Adaptive Replication Technique in Routing Time-Constrained Messages (VoIP) in MANET
June 14, 2011 12:00am PDT
Imposing the constraint of timely delivery on usual messages is referred as time-constrained messages. The utility of such messages depends upon the time at which they arrive at their destination....
Provided by: Engg Journals Publications
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White Papers
Duality And Convergence For Binomial Markets With Friction
June 10, 2011 12:00am PDT
The authors prove limit theorems for the super-replication cost of European options in a Binomial model with friction. The examples covered are markets with proportional transaction costs and the...
Provided by: Cornell University
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White Papers
VoIP Over WMN: Effect of Packet Aggregation
June 6, 2011 12:00am PDT
VoIP services are getting more and more popular day by day. In order to meet the users demand for such services irrespective of users location requires wide area wireless coverage .To this extent,...
Provided by: Engg Journals Publications
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White Papers
Multimedia in Wireless Mesh Networks
June 4, 2011 12:00am PDT
Wireless Mesh Networks (WMNs) have proclaimed critical interests among the wireless network community around the world. They have been introduced as an alternative solution for todays wireless...
Provided by: Oregon State University
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Webcasts
Introducing VERGE
June 1, 2011 12:00am PDT
There is a coming convergence of four technology platforms: Vehicles, Information, Buildings and Energy. VERGE will fundamentally transform cities, companies, communities, and households. Its...
Provided by: GreenBiz Group
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Whitepapers
Secure SIP From DoS Based Massage Flooding Attack
June 1, 2011 12:00am PDT
Over IP network the SIP-based VoIP system build, so it is precious by the IP network security problem. In this paper, the authors concentrate on the issue of Denial of Service (DoS) attacks which...
Provided by: International Journal of Computer Applications in Engineering Sciences (IJCAES)
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White Papers
The Near-extreme Density Of Intraday Log-returns
May 31, 2011 12:00am PDT
The extreme event statistics plays a very important role in the theory and practice of time series analysis. The reassembly of classical theoretical results is often undermined by non-stationarity...
Provided by: Cornell University
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White Papers
Penalty Methods For The Numerical Solution Of HJB Equations - Continuous Control And Obstacle Problems
May 30, 2011 12:00am PDT
In this paper, the authors present a novel penalty approach for the numerical solution of continuously controlled HJB equations and HJB obstacle problems. The results include estimates of the...
Provided by: Cornell University
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White Papers
Multichannel Virtual Access Points for Seamless Handoffs in IEEE 802.11 Wireless Networks
May 23, 2011 12:00am PDT
Within IEEE 802.11 Wireless Local Area Networks (WLANs), client stations can move freely, but because of the short range of their Access Points (APs), they usually need to reassociate with...
Provided by: IMAG
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White Papers
Indoor Seamless Roaming for VoIP Using IPv6 Location Assisted Network
May 23, 2011 12:00am PDT
In this paper, the authors present an approach to estimate the location of mobile unit in an indoor WiFi network environment. The estimated location information is then used to perform seamless...
Provided by: Universiti Teknologi Malaysia
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Discussion Threads
10 things you can do to conserve Internet bandwidth
May 22, 2011 7:05pm PDT
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Whitepapers
Using Voice over IP (VoIP) in Mobile Networks
May 12, 2011 12:00am PDT
Early in the last decade, service providers viewed VoIP as a threat to their traditional revenue streams. This has turned out to be true and is made possible by VoIP and the Internet, which is not...
Provided by: Global Knowledge
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Case Studies
Leading European Telecoms Operator
May 5, 2011 12:00am PDT
The company provides high-quality fixed and mobile telephony, Internet and digital television services and products, and is an all-round provider of ICT services for consumers. It also provides an...
Provided by: Capgemini
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White Papers
Consistency, Availability, and Convergence
May 3, 2011 12:00am PDT
The authors examine the limits of consistency in fault-tolerant distributed storage systems. In particular, they identify fundamental tradeoffs among properties of consistency, availability, and...
Provided by: University of Texas
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White Papers
Comparative Study of VoIP Over WiMax and WiFi
May 1, 2011 12:00am PDT
Recently wireless technology has grown immensely in popularity and usage becoming a medium of choice for networks. The wireless communication revolution is bringing fundamental changes to data...
Provided by: University of Karachi
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White Papers
Endpoint-Based Call Admission Control and Resource Management for VoWLAN
May 1, 2011 12:00am PDT
This paper examines two specific aspects of resource management in Wireless Local Area Networks (WLANs) - Call Admission Control (CAC) and handling of Link Adaptation (LA) events. A...
Provided by: Institute of Electrical and Electronics Engineers
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Whitepapers
An Approach of Covert Communication Based on the Adaptive Steganography Scheme on Voice over IP
April 26, 2011 12:00am PDT
An effective covert communication system can be achieved based on steganography in stream media such as VoIP (Voice over IP), and the LSB-based (Least-Significant-Bit) methods are the most popular...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
A MOS-based Routing Approach for Wireless Mesh Networks
April 26, 2011 12:00am PDT
In this paper, the authors propose a routing approach aimed at enhancing the quality of Voice-over-IP transmissions in multipath Wireless Mesh Networks. The proposed approach executes a path...
Provided by: Institute of Electrical & Electronic Engineers
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White Papers
A Sharp Analysis On The Asymptotic Behavior Of The Durbin-watson Statistic For The First-order Autoregressive Process
April 17, 2011 12:00am PDT
The purpose of this paper is to provide a sharp analysis on the asymptotic behavior of the Durbin-Watson statistic. The authors focus the attention on the first-order autoregressive process where...
Provided by: Cornell University
