Emerging Technologies and Applications in Communications, 1996. Proceedings., First Annual Conference on

In the same way that the IMAP protocol provides secure, ubiquitous access to a user's email, an analogous protocol is desirable to enable user access to an organized collection of URL links that comprise a private mapping of the Web document space. This paper describes the design and staged implementation of a SLINKY server that meets these goals. View full abstract»

Summary form only given. This paper describes the purpose, features and architecture of Intercast, a project under development in Intel's Internet Technology Lab (ITL) which enhances conventional television programming with additional, structured data, allowing the PC to add value to the TV experience. This associated digital information augments the broadcast television content and can be watched... View full abstract»

Cable Television Laboratories, Inc., has set up a laboratory to test conformance of consumer electronics equipment with the MPEG-2 standard. This paper discusses some MPEG background and initial MPEG-2 conformance testing for interoperability at CableLabs' testing laboratory. The methodology for performing encoder/decoder compliance testing is explained. Software and hardware platforms to support ... View full abstract»

There are limitations in the usability of the World Wide Web. One approach to circumventing these limitations involves inserting high-level transducers in the HTTP request/response stream. A second approach involves building more independent programs, called browsing associates. We have built example services and toolkits for both View full abstract»

The paper presents the results from signal attenuation due to trees, and radar interference testing conducted on the multichannel multipoint distribution service (MMDS), in operation at Virginia Beach, VA. The test data collected provides valuable information on the effects of attenuation caused by the foliage of trees common to the area, and interference from an aviation radar system View full abstract»

This paper introduces current and planned mobile data and messaging capabilities of the TDMA Digital AMPS cellular and personal communications standard. In addition to providing more than a threefold capacity increase over the venerable analog AMPS standard by digital transcoding and time division multiplexing, D-AMPS provides a flexible and competitive technological platform capable of significan... View full abstract»

A novel technology called WAVE for distributed processing and control in large open systems is presented. The technology, combining mobile agent ideology with parallel processing of distributed semantic networks, may be efficiently used on a variety of system organisation levels, ranging from intelligent communication protocols to arbitrary parallel and distributed applications View full abstract»

The paper propose a standards based IP over ATM architectural model for ATM network(s). This model could coexist with the currently implemented proprietary architecture(s), but could also replace them without any major loss in functionality. This architecture allows a convenient migration path to the standards currently under development, like NHRP (Next Hop Resolution Protocol) and IRA (Integrate... View full abstract»

A new multimedia conference system is designed and implemented. The system allows a group of users to conduct a meeting in real time. Participants can jointly view and edit relevant multimedia information, including text, graphics, and still images distributed throughout the network. Participants can also communicate simultaneously by voice to discuss the information they are sharing. This multime... View full abstract»

This paper presents an overview of the KNOWS client server system. The system is capable of cataloging individual World Wide Web servers, and building master subject catalogs of server content across the Web. Users are provided with a set of graphical tools that allow descriptions of files and directories to be built. Cataloging occurs through user interactions with this interface. The system's co... View full abstract»

WAVE is a novel paradigm and programming environment based on the concept of mobile intelligent agents. It allows intelligent mobile agents to roam in networks of arbitrary topology in a highly parallel and completely distributed manner. We show how WAVE can be effectively used in the simulation of the mobile-IP protocol. After a brief introduction of the WAVE paradigm and the mobile-IP protocol, ... View full abstract»

In this paper, we propose and discuss a universal digital simulation model for synchronization networks, which can be applied to SONET/SDH networks of arbitrary structures. This model is derived from the models of the slave clock and of the synchronization link, which take into consideration all important impairments such as jitter, wander, frequency offset, phase hop, as well as phase and clock n... View full abstract»

Speech quality, with cell losses in an ATM network, has been evaluated previously using random cell loss rates. However, it has been shown that cell loss behavior for speech transmission in ATM is more appropriately described by the burst model due to the burstiness properties of the aggregate voice cell arrival process. A mathematical model, called the burst model for cell loss behavior in an ATM... View full abstract»

Software simulators have often been used to test and validate new protocols, but the high bandwidth of newly emerging ATM networks implies prohibitive memory requirements. This paper describes several simulation techniques we have devised as part of the Thunder and Lightning project to build 40 and 100 gigabit per second ATM networks View full abstract»

We propose a compositional Petri net model, called CoPN, for multimedia synchronization specifications. The salient features of this model, including macroplaces and PN entities, are presented and the application of the CoPN model to multimedia synchronization specification is discussed via some simple examples. This compositional approach enables the compact and readable specification of complex,... View full abstract»

The success of the Internet and the World Wide Web has created an opportunity for a new generation of distributed applications. The developers of these new applications will need new tools to simplify protocol design and development. Once the applications are essentially complete, new portability and security technologies will be needed to overcome the current difficulties of deploying new applica... View full abstract»

Wireless cable, including MMDS, ITFS, and MDS, is a terrestrial television broadcast service at 2.1 and 2.5 to 2.7 GHz. A total of 33 channels are available, each 6 MHz wide. By utilizing MPEG2 video compression and spectrally efficient digital modulation, the number of programs delivered in this bandwidth can be dramatically increased. This paper describes the method by which the programming incr... View full abstract»

A new multicast routing algorithm for reducing congestion is presented. The algorithm uses efficient routing by transmitting multicast packets across fewer links in the network. The algorithm balances the use of network nodes and links by reducing packet duplication in the nodes. The computation time of the algorithm is short. The results show that the algorithm can find the multicast paths by usi... View full abstract»

The paper shows the design of a 2 Mb/s wireless IR experimental modem using DPSK modulation. This modem is suitable for LAN and data communications in office environments using both diffuse and quasidiffuse IR beams. The paper focuses on optical transmitter and receiver design, due to the optical power and sensitivity limitations in such links View full abstract»

Roaming agents threaten a server with theft of assets, system resources and reputation. Generally ignored is the reciprocal threat of server against agent. Not only might a server steal the assets, resources, and reputation of an agent, but it might actually kill the agent. The central security concern for systems that allow agents to roam is how to establish trust, and how to limit risk for both ... View full abstract»

Multimedia streams usually have an inherent hierarchy and an inter-independency of subsequent blocks in their data structures. Dealing with these features within the operating system and the network brings a global resource usage improvement. We propose a new method for media scaling based on two complementary techniques: circular buffers and filtering. We describe an MPEG distributed application ... View full abstract»

Computer telephony integration (CTI) holds the promise of changing the way in which we use our phones and computers. The Internet has always been ready for voice, in fact it is already ready for video. It is only now with the introduction of high speed broadband technologies like ATM, 100 Mbps LANs, and FDDI can one introduce this multimedia on the Internet. The author describes the state at which... View full abstract»