A study of intelligent multimedia services over PSTNs and the internet

1998 ◽  
pp. 250-264
Author(s):  
L. Orozco-Barbosa ◽  
D. Makrakis ◽  
N. D. Georganas
Keyword(s):  
The Internet ◽  
Multimedia Services ◽  
Intelligent Multimedia

Adaptive Transmission of Multimedia Data over UMTS

2007 ◽  
pp. 20-24
Author(s):  
A. Alexiou
Keyword(s):  
High Speed ◽  
Limited Resource ◽  
Mobile User ◽  
Wireless Channel ◽  
Multimedia Data ◽  
The Internet ◽  
Wireless Data ◽  
Multimedia Services ◽  
Internet Applications ◽  
Universal Mobile Telecommunications System

As communications technology is being developed, users’ demand for multimedia services raises. Meanwhile, the Internet has enjoyed tremendous growth in recent years. Consequently, there is a great interest in using the IP-based networks to provide multimedia services. One of the most important areas in which the issues are being debated is the development of standards for the universal mobile telecommunications system (UMTS). UMTS constitutes the third generation of cellular wireless networks which aims to provide high-speed data access along with real-time voice calls. Wireless data is one of the major boosters of wireless communications and one of the main motivations of the next-generation standards. Bandwidth is a valuable and limited resource for UMTS and every wireless network in general. Therefore, it is of extreme importance to exploit this resource in the most efficient way. Consequently, when a user experiences a streaming video, there should be enough bandwidth available at any time for any other application that the mobile user might need. In addition, when two different applications run together, the network should guarantee that there is no possibility for any of the above-mentioned applications to prevail against the other by taking all the available channel bandwidth. Since Internet applications adopt mainly TCP as the transport protocol, while streaming applications mainly use RTP, the network should guarantee that RTP does not prevail against the TCP traffic. This means that there should be enough bandwidth available in the wireless channel for the Internet applications to run properly.

scholarly journals Cooperative Buffering Schemes for Time-Shifted Live Streaming of Distributed Appliances

2021 ◽  
Vol 11 (23) ◽  
pp. 11527
Author(s):  
Eunsam Kim ◽  
Yunho Cho ◽  
Hyoseop Shin
Keyword(s):  
The Internet ◽  
Live Streaming ◽  
P2p Networks ◽  
Multimedia Services ◽  
Storage Devices ◽  
Broadcast Time ◽  
Streaming Services ◽  
Live Broadcast ◽  
Startup Delay ◽  
Do So

Distributed appliances connected to the Internet have provided various multimedia services. In particular, networked Personal Video Recorders (PVRs) can store broadcast TV programs in their storage devices or receive them from central servers, enabling people to watch the programs they want at any desired time. However, the conventional CDNs capable of supporting a large number of concurrent users have limitations in scalability because more servers are required in proportion to the increased users. To address this problem, we have developed a time-shifted live streaming system over P2P networks so that PVRs can share TV programs with each other. We propose cooperative buffering schemes to provide the streaming services for time-shifted periods even when the number of PVRs playing back at the periods is not sufficient; we do so by utilizing the idle resources of the PVRs playing at the live broadcast time. To determine which chunks to be buffered, they consider the degree of deficiency and proximity and the ratio of playback requests to chunk copies. Through extensive simulations, we show that our proposed buffering schemes can significantly extend the time-shifting hours and compare the performance of two buffering schemes in terms of playback continuity and startup delay.

REVIEW IN CLOUD BASED NEXT GENERATION TELECOMMUNICATION NETWORK

2016 ◽  
Vol 78 (6) ◽  
Author(s):  
Mohamed Khalaf Alla H. M. ◽  
Amin Babiker ◽  
Magdi B. M. Amien ◽  
Mutaz Hamad
Keyword(s):  
Cloud Computing ◽  
Telecommunication Network ◽  
Cloud Model ◽  
Telecommunications Industry ◽  
Next Generation Network ◽  
Next Generation ◽  
Multimedia Services ◽  
Generation Network ◽  
Telecommunications Services ◽  
Intelligent Multimedia

The development of cloud computing technologies is rapidly accelerating the integration of telecommunications services and the Internet, by adopting the cloud model the telecommunications industry can on demand ,organize and apply telecommunication resources as a services .The NGN (Next Generation Network), and IMS (intelligent multimedia subsystem) are essentially developed to provide multimedia services over an all-IP based network, however the full realization of both solutions is still is not reachable and it is still far from being widely deployed specially for the IMS, this is despite the development that has been undergoing for years .The main reasons behind that, is the  increasing demands by consumers, fast evolving access technologies , complexity of implementations to meet these growing demands. Cloud computing as fast evolving IT paradigm can be considered as solution for scalability issue of NGN and IMS which may lead to the full realization of NGN and IMS .This Paper presents literature review on researches and trials on cloud based NGN and IMS.

The Future of Money as it Affects Payment Systems

1997 ◽  
Vol 8 (1) ◽  
pp. 25-41
Author(s):  
Chris Potts ◽  
Ralph Browning ◽  
Tony de Vizio
Keyword(s):  
Smart Card ◽  
The Internet ◽  
Payment Systems ◽  
Electronic Cash ◽  
Electronic Money ◽  
Multimedia Services ◽  
Payment Mechanism ◽  
New Business ◽  
High Street ◽  
Economical Activity

The concept of electronic money is no longer a hypothesis but a realisation. Advanced smart card technology and the ability to replace physical cash with an electronic alternative is a reality with mass market utilisation being a matter of time, rather than just supposition. Mondex is an “electronic cash” smartcard, which is being introduced as an alternative to physical notes and coins for use in the high street and as a future payment mechanism in a wide variety of areas such as the Internet and multimedia services. It is also the pre-eminent product of its kind for it fully re-combines the existing features of physical money with additional utility; and it has been this type of behaviour which improves an existing paradigm that has advanced payment systems over the ages. Fundamental to any system will be its reliance on security, thereby imposing confidence among its scheme participants and ensuring the scheme’s success. The Mondex chip is virtually impossible—and almost certainly uneconomic—to crack. Therefore, within the features of Mondex—improved flexibility, acceptance, convenience, control, etc.—there exists the assets of security, scaleability and economy. In addition, the Mondex proposition will provide a foundation upon which entirely new business, social and economical activity could occur.

scholarly journals Designing and evaluating the usability of an API for real-time multimedia services in the Internet

2016 ◽  
Vol 76 (12) ◽  
pp. 14247-14304 ◽  
Author(s):  
Luis López-Fernández ◽  
Boni García ◽  
Micael Gallego ◽  
Francisco Gortázar
Keyword(s):  
Real Time ◽  
The Internet ◽  
Multimedia Services
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