This paper proposes M(3)A - Multicast Mobile Measurement Architecture- a software architecture for the development of flexible distributed measurement systems. M(3)A centres at the large level on nowadays internet tec...
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ISBN:
(纸本)0780347978
This paper proposes M(3)A - Multicast Mobile Measurement Architecture- a software architecture for the development of flexible distributed measurement systems. M(3)A centres at the large level on nowadays internet technologies such as multicast and mobile computing and at the small level on a Java and Actor-based Framework. M(3)A allows the building of open, portable and dynamically re-configurable systems. The paper describes the architecture and exemplifies it by some examples.
One of the most promising applications of internettechnology is the implementation of distributed information systems (IS). However, internet doesn't provide adequate security. internet security, derived from ele...
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One of the most promising applications of internettechnology is the implementation of distributed information systems (IS). However, internet doesn't provide adequate security. internet security, derived from electronic commerce, cannot implement IS security policies. Alternatively, more robust security protocols cannot scale. Viable solutions merge internet scalability with the robust security of current distributed IS protocols. As this merger occurs, performance should be considered. This paper uses modeling to analyze the performance of new internet-capable security architectures.
Since the internet becomes popular and widely used, many services including databases are available for users. However, more databases are available, more difficult it becomes to select and use them. One promising way...
ISBN:
(纸本)3540653902
Since the internet becomes popular and widely used, many services including databases are available for users. However, more databases are available, more difficult it becomes to select and use them. One promising way to solve this problem is to use a software agent called Mediator (or Facilitator) [1]. A mediator has meta-information of databases, and it can select databases that satisfy requests from users, access them in suitable protocols, and summarize their answers. Users have only to know the way to access the mediator. From the view of users, a mediator realizes the virtual integration of distributed databases
The proceedings contain 23 papers. The special focus in this conference is on Services and Visualization. The topics include: Convergence of telecommunications and computing on networking models for integrated service...
ISBN:
(纸本)3540643672
The proceedings contain 23 papers. The special focus in this conference is on Services and Visualization. The topics include: Convergence of telecommunications and computing on networking models for integrated services and applications;a new concept for online publishing and knowledge management;distributed compression of live video;incremental scene graph distribution method for distributed virtual environments;value-added services in industrial automation;requirements and a proposal for the prevention of a class of service interactions in intelligent networks;INAP protocol test suite verification method using the IUT simulator for AIN system conform testing IN protocol implementation;agent-based data services in future IN-platforms;visualisation of executable formal specifications for user validation;design and evaluation of a visual formalsism for real time logics;visualising the behaviour of intelligent networks;formal methods and customized visualization;using a visual formalism for design verification in industrial environments;automatic error location for IN service definition;the generation of service database schema through service creation environment;a study of intelligent multimedia services over PstNs and the internet;open switching for ATM network;application of INAP to AIN intelligent peripheral;IN evolution to support mobility in DECT access networks and a mobile broadband service switching point.
We propose a unified framework far coordination in multi-user Virtual Worlds, based an our experience with LogiMOO, a BinProlog+Linda based programmable shared Virtual World LogiMOO adopts unification for pattern retr...
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ISBN:
(纸本)0818682558
We propose a unified framework far coordination in multi-user Virtual Worlds, based an our experience with LogiMOO, a BinProlog+Linda based programmable shared Virtual World LogiMOO adopts unification for pattern retrieval while using exclusively deterministic operations, unlike most Prolog based Linda systems. Moving beyond the Linda framework LogiMOO is based an, we describe a coordination logic for agent programming based on ideas front (affine) linear logic and Java's synchronized object system as well as a set Of new primitives describing uniformly Linda operation, database updates and hypothetical assumptions. The main novelty is that our constructs emphasize an 'object based' approach, with synchronization information built in 'container objects' and allowing more flexible wait/notify negotiations between consumer/producer agent components, as well as inheritance and agent component reuse. Our experiments with agent coding in LogiMOO and Java and interaction with external visual and logic components, show the practicality of our constructs for real life programming.
This paper proposes a solution to the problems associated with network latency within distributed virtual environments. It begins by discussing the advantages and disadvantages of synchronous and asynchronous distribu...
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This paper gives a snapshot on the convergence of telecom and computer industries on a common vision on networking models against the stringent requirements of multimedia applications on future integrated services inf...
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When a distributed MPEG player system is transmitting MPEG video streams over an open network, like the internet, the system usually has no control on the network traffic. In this paper, we define the quality of servi...
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ISBN:
(纸本)081869209X
When a distributed MPEG player system is transmitting MPEG video streams over an open network, like the internet, the system usually has no control on the network traffic. In this paper, we define the quality of service (QoS) for video transmissions in an adaptive mechanism, and we propose a priority feedback mechanism with QoS Control (PFB-QoS) for a distributed MPEG player system. With the feedback signal coming from each client and our pre-defined priority mapping functions, the current status and priority of each client can be obtained With such information the video server will adapt to the dynamic changes in the network and make efforts to maintain the eos requirement for each client under the current network constraints. From our preliminary experiments, we find that when a video sewer is sewing multiple clients where every client can demand a different QoS, the use of a priority feedback mechanism can effectively maintain the committed quality of service.
internet and ATM possess quality of service (QoS) architectures which allow them to integrate services of data and telecommunications formerly performed by separate infrastructures. We believe that none of them will b...
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internet and ATM possess quality of service (QoS) architectures which allow them to integrate services of data and telecommunications formerly performed by separate infrastructures. We believe that none of them will be able to oust the other. That means both will exist for at least the middle-term future. Therefore, an interaction between both is necessary, especially in the field of distributed multimedia applications where both worlds "meet" first. These applications require a certain QoS to perform gracefully. Hence, in particular the interaction between internet and ATM QoS architectures is important. Interaction approaches for the QoS architectures developed for the internet and for ATM are discussed. We do not restrict ourselves to common approaches but derive more unconventional models by regarding the possible communication patterns based on different topological variants for heterogeneous IP-ATM networks.
Advances in networking technology and the establishment of the Information Superhighway have rendered the virtual library a concrete possibility. We are currently investigating user experience in walking through a lar...
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