Opportunistic mobile networks (OMNs) are a class of MANETs where complete endto-end paths rarely exist between sources and destinations;consequently, the end-to-end delays in these networks are much greater than typic...
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In MANETs, congestion typically occurs on the interconnecting nodes between two or more groups of nodes. routing to avoid the congested nodes via alternate, perhaps longer paths, allows more throughput, e.g., 50% more...
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One-to-all or broadcast communication is one of the most important communication patterns and occurs in many important applications in parallel computing. In this paper, we propose a fault tolerant, local-information-...
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Overlay networks have been recently developed to support multicast framework. Specially, overlay architectures based on proxies and leased lines can provide applications with optimal performance in terms of bandwidth,...
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Recent works have shown that Markov chain theory can be used to model and realistically describe road network dynamics. Properties of the Markov transition matrix such as the Perron eigenvector, the second eigenvalue,...
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The on-demand multicast [1] is a novel scheme to reduce the video delivery cost for the streaming video applications. Unlike the conventional multicast, this scheme enables the transmission of the multicast data to mu...
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ISBN:
(纸本)0769511988
The on-demand multicast [1] is a novel scheme to reduce the video delivery cost for the streaming video applications. Unlike the conventional multicast, this scheme enables the transmission of the multicast data to multiple recipients at distinct times. This property is important for the streaming video applications since the users usually access the video program at different times. To deliver the same multicast data to the recipients at distinct times, the on-demand multicast scheme temporarily caches a sliding window of the incoming stream on a router (or a proxy) and then forwards it on different links at distinct times to generate timevariant outgoing streams. By carefully scheduling the departure time on each router's outgoing streams, a video stream can be distributed to the recipients at their expected times. Based on this scheme, this paper presents three routing algorithms on an asymmetric transmission network model, such as cable systems and ADSL systems. The simulation results indicate that our algorithm offers an outstanding performance in reducing the number of multicast streams and the network bandwidth. In addition, our simulation results are valuable to plan the system resources when deploying the video-on-demand systems.
Space-based Integrated Information Network (SIIN) is a newly proposed conception in recent years which means information are processed, interlinked and transmitted in multi-spacecraft. LEO satellite network is a basic...
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A simulation test methodology has been developed to evaluate Satellite-Network routing algorithms. The test technique simulates problems routing algorithms encounter in satellite network by selecting the routing strat...
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In this paper, we proposed a computational tool to assist the students' understanding about the working of Dijkstra and Greed Search algorithms, commonly taught in undergraduate courses such as Industrial Engineer...
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In this paper, we proposed a computational tool to assist the students' understanding about the working of Dijkstra and Greed Search algorithms, commonly taught in undergraduate courses such as Industrial Engineering, Logistics, Computer Science and Information Systems, for solving problems of operational research belonging to the category known as "network optimization problems". The tool consists of a graphical application that allows students to represent and solve the investigated problem and develop their understanding about each algorithm. We also present experiments with the proposed tool in a class of fourth year of Information Systems undergraduate course of a private university of São Paulo city.
Level routing LEACH protocol has uneven cluster head distribution, and each cluster head rotation takes place throughout the network, which will cause excessive energy consumption. However, the application of ant colo...
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