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voip
(2512 results)-
Whitepapers
Evaluation and Improvement of VoIP Capacity for LTE
March 18, 2012 12:00am PDT
LTE-Advanced (LTE-A) proposed by the 3rd Generation Partnership Project (3GPP) has been accepted by the International Telecommunication Union (ITU) in 2010 as an IMT-Advanced (IMT-A) compliant 4G...
Provided by: RWSoftware
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Whitepapers
QoE-Based Energy Conservation for VoIP Over WLAN
March 12, 2012 12:00am PDT
Minimizing energy consumption is becoming more and more crucial in today's mobile terminals communications. Reducing its use pass necessarily by exploiting low power design techniques and by...
Provided by: University of Reims Champagne Ardenne
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Whitepapers
Secondary User VoIP Capacity in Opportunistic Spectrum Access Networks With Friendly Scheduling
March 12, 2012 12:00am PDT
In conventional cognitive radio networks it is usually assumed that the primary network remains unchanged. The onus is then placed on the secondary network users to make the best use of any...
Provided by: McMaster University
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Whitepapers
Performance Evaluation of TCP and UDP During LTE Handover
March 12, 2012 12:00am PDT
LTE (Long Term Evolution) has been standardized in 3GPP (3rd Generation Partnership Project) to provide higher data throughput as well as lower latency for various IP based services including web...
Provided by: SOFTBANK Creative Corp.
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Whitepapers
Coverage Analysis of Skype VoIP Services Over 3G Cellular Networks
March 12, 2012 12:00am PDT
Provision of voice services over 3G W-CDMA radio access networks is generally designed as a function of the air interface requirements of Circuit-Switched (CS) connections. On the other hand,...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Simplified Joint Call and Packet Level Teletraffic Analysis of CAC Strategies for VoIP Traffic in Wireless Networks
March 12, 2012 12:00am PDT
In this paper, a simplified joint call and packet level tele-traffic analysis method for performance evaluation of Call Admission Control (CAC) strategies for Voice over IP (VoIP) traffic over...
Provided by: Institute of Electrical & Electronic Engineers
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White Papers
Five Top Tips for Choosing a Telecoms Partner for Social Media and Internet Applications
March 9, 2012 12:00am PST
Bringing universal mobile services such as voice, SMS and mobile phone numbers to the web environment is the latest focus of internet and social networking businesses. Facebook provides a...
Provided by: TynTec
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Whitepapers
A Dual Buffer Scheme for Combating Frame Erasure Problems in VoIP Communication
March 1, 2012 12:00am PST
This paper refers to the transmission of speech across data-style networks. This form of transmission is conceptually superior to conventional circuit switched communication in many ways. Quality...
Provided by: International Journal of Computer Applications
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Whitepapers
Performance Analysis of Various Codecs Using RSVP on VoIP Quality of Service Over Variable Bandwidth
March 1, 2012 12:00am PST
With the rapid growth of the Internet, customers are demanding multimedia applications such as telephony and video on demand, to be available on the internet. Voice over Internet Protocol (VoIP)...
Provided by: International Journal of Computer Applications
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Whitepapers
End to End Encryption Architecture for Voice Over Internet Protocol
March 1, 2012 12:00am PST
Session Initiation Protocol (SIP) is an open standard protocol and constitutes the provisioning of services like Internet Telephony and Instant Messaging. Vulnerabilities in SIP have made it...
Provided by: International Journal of Computer Applications
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Whitepapers
Survey of QoS Issues for TCP Connections in Optical Burst Switched Networks
March 1, 2012 12:00am PST
Optical Burst Switching (OBS) can cater the requirements of bandwidth intensive applications like Voice-over-IP, video conferencing, interactive video on demand. It is switching technique for the...
Provided by: International Journal of Computer Applications
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Whitepapers
Adaptive Rate Control Cryptographic Active Voice Transcoding (ARC-CAVT) Congestion Control Mechanism for Voice Over IP (VOIP) Transmission - A Case Study
March 1, 2012 12:00am PST
The quality of bulky real time voice communication over an IP network degrades due to packet header overhead, network congestion and improper queuing strategies. These overheads affect the overall...
Provided by: International Journal of Communications and Engineering
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White Papers
Privacy Preserving of VoIP Against Peer-to-Peer Network Attacks and Defense
March 1, 2012 12:00am PST
Peer-to-Peer VoIP (Voice over IP) networks, exemplified by Skype, are becoming increasingly popular due to their significant cost advantage and richer call forwarding features than traditional...
Provided by: gopalax softwares
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Whitepapers
Real Time Traffic Classification and Prioritisation on a Home Router Using DIFFUSE
March 1, 2012 12:00am PST
Quality of Service (QoS) is important in multi-user residential networks that share a common bandwidth-constrained Internet connection. A limited upstream bandwidth can become a bottleneck and the...
Provided by: Swinburne University of Technology
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Whitepapers
Anatomy of WiFi Access Traffic of Smartphones and Implications for Energy Saving Techniques
February 29, 2012 12:00am PST
Today's Smartphones are equipped with more features than an average personal computer. They have become the preferred means of communication, and consequently, Smartphone traffic constitutes an...
Provided by: Science and Development Network (SciDev.Net)
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Q&A
How can I set Voice over IP on MPLS ?
February 27, 2012 2:07am PST
How can I set Voice over IP on MPLS ? hi all .i'm a studant and i want to know how can i set Voice over ip on MPLS . if any one have any idea about that or have a link pleaze tell me . what...
2 Started by ihsanmokhlisse | Latest comment by OH Smeg
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White Papers
A SPIT Avoidance Workflow for SIP-Provider
February 23, 2012 12:00am PST
Voice-over-IP (VoIP) replaces traditional telephony network infrastructures in growing numbers. Along with this infrastructure change, SPam over Internet Telephony (SPIT) is likely to spread...
Provided by: IARIA
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White Papers
Performance Evaluation of Delay-Sensitive Services Over the Internet Using Multipath Routing
February 22, 2012 12:00am PST
In recent years, there has been a phenomenal growth in the commercial deployment of delay-sensitive services, such as voice and video services, over the Internet Protocol. Regardless of the...
Provided by: The Second International Conference on Communications and Information Technology
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Q&A
how can i setup a network between my offices in different countries ?
February 21, 2012 2:23am PST
how can i setup a network between my offices in different countries ? HEllo, I want to make a netwrok between my offices in different countries and to make calls between them throw Ip. can some...
2 Started by ahmadtecra | Latest comment by JPElectron
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White Papers
Mobile WiMAX Field Trial Test Through Multimedia Performance Evaluation
February 20, 2012 12:00am PST
IEEE 802.16e is a mobile version of Worldwide Interoperability for Microwave Access (WiMAX) that plays an important role in the evolution towards 4G. In this paper, the authors focus on multimedia...
Provided by: EURASIP
