This paper shows how some of the TINA principles used in the development of Service Management techniques for the Broadband ISDN may be applied to the management of Internet Services. In the original B-ISDN concept of...
详细信息
ISBN:
(纸本)3540658955
This paper shows how some of the TINA principles used in the development of Service Management techniques for the Broadband ISDN may be applied to the management of Internet Services. In the original B-ISDN concept of these services, it was assumed that there would be B-ISDN components in both the network and subscriber systems. In the Internet version of the services, it was considered that ip Multicast would be used for the multimedia conferencing services. In the approach adopted here, the normal Internet functionality is maintained unchanged in the subscriber equipment;modifications in the access network dealt with the differences between the B-ISDN and the Internet. The paper discusses the architecture adopted, the applications services integrated and the methods employed to demonstrate remotely the system. The latter encompassed the novel use of Direct Broadcast Satellite connectivity, for the purposes of the demonstration.
The recent emergence of World Wide Web (WWW) and Internet changes the study life of people. Online learning through the web will become popular in the decade. In this paper, we introduce a multimedia distance learning...
详细信息
The recent emergence of World Wide Web (WWW) and Internet changes the study life of people. Online learning through the web will become popular in the decade. In this paper, we introduce a multimedia distance learning tool which enables online education through the internet - LearnNet. LearnNet is a server-based distance learning system designed to provide centralized, flexible control and easy administration of online distance learning applications. It relies on open architecture based on TCP/ip, HTML, JAVA and SQL. Its functions include virtual classroom, assignment handler, course material browser, discussion forum and online chat room so as to facilitate both online teaching and online learning through the WWW.
This paper describes the project of a processor for the calculation of the direct/inverse two-dimensional discrete cosine transform to be employed in videoconferenceapplications. This processor makes use of the separ...
详细信息
CORBA has developed rapidly and been taken into use in many fields of industry and commerce. But the growing use of distributed application with time sensitive requirements (such as distributed multimedia application)...
详细信息
In this paper a new VLSI architecture, called ALPHA-B, for the motion estimation full-search algorithm is proposed. It features high throughput/area efficiency and high block size flexibility for a small hardware comp...
详细信息
Conferencing applications require an efficient conference control service. The present paper introduces the main features of a conference control service based on the CORBA Event Service using the Java platform under ...
详细信息
ISBN:
(纸本)0769502539
Conferencing applications require an efficient conference control service. The present paper introduces the main features of a conference control service based on the CORBA Event Service using the Java platform under development at the Communications and Telematic Services Group of the University of Coimbra. This framework is based on the ITU T.120 recommendations with reliable multicasting communication for both data and control information. The control service extends the CORBA Event Service architecture with mechanisms for reliable ip multicast communication, with total ordering of the events transmission, filtering and fragmenting/reassembling of large messages.
multimediaapplications introduce new requirements in terms of network resources. applications need to be capable of specifying and requesting network resources. Many protocols for quality of service (QoS) provision e...
详细信息
multimediaapplications introduce new requirements in terms of network resources. applications need to be capable of specifying and requesting network resources. Many protocols for quality of service (QoS) provision exist. Rendering an application independent from the underlying network reservation protocol constitutes the major motivation for this paper. A QoS middleware is required that will provide a generalised interface for reservations and, at the same time, will take the role of an umbrella, under which a number of different reservation mechanisms can be placed. This paper presents a layered QoS middleware architecture and gives details of the specification and implementation of this architecture in terminals supporting ip and ATM-based applications.
The recent emergence of the World Wide Web (WWW) and Internet is changing the studying habits of people. More and more institutions require an effective and flexible application to launch their distance learning progr...
详细信息
The recent emergence of the World Wide Web (WWW) and Internet is changing the studying habits of people. More and more institutions require an effective and flexible application to launch their distance learning programs on the WWW. Learn@Net is a possible solution. Learn@Net is a server-based distance learning system designed to provide centralized, flexible control and easy administration of online distance learning applications. It relies on an open architecture based on TCP/ip, HTML, Java and SQL. It involves functions such as virtual classroom, assignment handler, course material browser, discussion forum and online chat room to facilitate both online teaching and online learning through the WWW.
Conferencing applications require an efficient conference control service. This paper introduces the main features of a conference control service based on the CORBA event service using the Java platform, under develo...
详细信息
Conferencing applications require an efficient conference control service. This paper introduces the main features of a conference control service based on the CORBA event service using the Java platform, under development at the Communications and Telematic Services Group of the University of Coimbra. This framework is based on the ITU T.120 recommendations, with reliable multicasting communication for both data and control information. The control service extends the CORBA Event Service architecture with mechanisms for reliable ip multicast communication, with total ordering of the events transmission, filtering and fragmenting/reassembling of large messages.
Currently, the market of multimedia information appliance based on Internet activated by the growth of both multimedia service and access of Internet augment the importance of TCP/ip protocol S/W which can provide the...
详细信息
Currently, the market of multimedia information appliance based on Internet activated by the growth of both multimedia service and access of Internet augment the importance of TCP/ip protocol S/W which can provide the existing standalone embedded systems with Internet service. In this paper we analyze the architecture and function of TCP/ip module to depend on 4.4BSD OS (Operating System) runtime environment and propose the new method against TCP/ip module dependent on 4.4BSD OS runtime environment. And then we implement embedded OS for the network appliance that supports multitasking under its environment to use only physical memory in embedded system.
暂无评论