”All animals are equal, but some animals are more equal than others”, Antrum Farm, George Orwell. Object Orientation is a current hot theme for researchers and developers of distributedsystems. This paper reviews t...
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Applications of inter-vehicle and vehicle-to-roadside communication that make use of vehicular ad hoc networks (VANETs) will often require reliable communication that provides guaranteed real-time message propagation....
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ISBN:
(纸本)1581139225
Applications of inter-vehicle and vehicle-to-roadside communication that make use of vehicular ad hoc networks (VANETs) will often require reliable communication that provides guaranteed real-time message propagation. This paper describes an event-based middleware, called RT-STEAM. Unlike other event systems, RT-STEAM does not rely on a centralized event broker or look-up service while still supporting event channels providing hard real-time event delivery. RT-STEAM event filtering can be based on subject, content and/or proximity. To guarantee real-time communication, we exploit proximity-based event propagation to guarantee real-time constraints within the defined proximities only. The proximity within which real-time guarantees are available is adapted to maintain time bounds while allowing changes to membership and topology, typical of VANETs. This Space-Elastic Model of real-time communication is the first to directly address adaptation in the space domain to guarantee real-time constraints.
Now that the Internet and Web are abundantly present in every days live and net-working and computing speed are improving at an impressive rate, more and more attempts become visible to apply these developments toward...
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Current solutions to communication in mobile ad hoc networks (MANETs) are based on the use of IP addresses. These approaches identify the nodes involved in data transmission through the same type of address used in tr...
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There have been some efforts to apply agent based approaches in Wireless Sensor Networks (WSNs) for different applica- tion scenarios in recent past. These efforts have met with varying levels of success so far. Howev...
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There have been some efforts to apply agent based approaches in Wireless Sensor Networks (WSNs) for different applica- tion scenarios in recent past. These efforts have met with varying levels of success so far. However, the efforts to assess the suitability of Foundation for Intelligent Physical Agents (FIPA) compliant multiagent solutions for WSNs are almost non-existent. In this paper we present a scenario from an industrial domain and asses the suitability of a FIPA compli- ant multiagent based solution for it. The scenario is based on a WSN deployment in an underground mine where it could be put to use for several purposes like hazardous gas plume detection and tracking, mine lighting control, Proximate En- vironment Monitoring (PEM), structural health monitoring of mine structure, to name a few. However, we only consider the PEM usage scenario in this paper. Copyright ACM 2007.
distributed application programmers rely on middleware such as CORBA in order to handle the complexity that arises from the distributed and heterogeneous nature of the underlying computing platform. CORBA, in particul...
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Lack of bandwidth has been shown to be a major impediment to achieving realism in large scale virtual worlds with many interacting entities. Recent projects that have addressed this problem have, for the most part, be...
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The Routing and Wavelength Assignment problem is a graph optimization problem which deals with optical networks, where communication requests in a network have to be fulfilled. In this paper, we present a multilevel d...
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File copying is frequently used to implement ad hoc management of file replicas, backups and versions. Such tasks can be assisted by appropriate applications, at the expense of introducing some restrictions to the usa...
ISBN:
(纸本)9781450373562
File copying is frequently used to implement ad hoc management of file replicas, backups and versions. Such tasks can be assisted by appropriate applications, at the expense of introducing some restrictions to the usage patterns. In particular, this is the case of interactions involving disconnected machines and transportable media. Panasync tries to support these actions by introducing a set of commands for file copying and re-integration that complement the file-system commands and provide support for dependency analysis among time-stamp assisted files.
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