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Current communication systems restrict user affordances in terms of expressiveness and interaction. Complex Event Processing (CEP) have gained much importance to overcome these shortcomings. It allows users to interact with powerful expressiveness when defining logical and temporal patterns of exchanged events. This expressiveness allows cleaning network traffic by eliminating the routing of useless...
This paper proposes an analytical model for latency aware publish/subscribe systems on mobile ad hoc networks. The proposed approach combines both proactive and reactive statistical analysis. On the one hand, the reactive analysis, suitable for multimedia applications, detects failures by approximating latency series with the Gumbel distribution. On the other hand, the proactive analysis, suitable...
This paper presents an analytical model for monitoring and analyzing QoS of publish/subscribe systems on MANET. The proposed customizable model ensures the user a good quality of service requirements and combines both proactive and reactive statistical analysis. In fact, the reactive analysis, suitable for multimedia applications, aims to detect failures by approximating latency series with a Gumbel...
In a Publish/Subscribe (Pub/Sub) system mainly used with event stream processing, churn represents a signifiant risk when brokers of the event service are dynamic enough and maintain full subscription table at the same time. Brokers would not be enabling to route received publications to interested subscribers when one or several intermediate brokers in the path to the subscribers are absent. In this...
In this paper, we propose an analytical framework for monitoring and analyzing QoS of publish/subscribe systems on MANET. Our framework copes with intermittent connectivity frequently occurring in MANET and provides statistical methods allowing detecting QoS degradations affecting links between brokers at the middleware layer. Besides, our analytical framework identifies QoS degradation source which...
This paper presents a novel approach for Quality of Service aware publish/subscribe systems on Mobile Adhoc Network. Crisis management application seems to be a relevant case study to our approach. On the one hand, our proposed solution monitor the system and analyzes his state towards predicting Quality of Service degradations. Real time prediction is based on the Auto Regressive Integrated Moving...
In this paper, we propose a failure prediction methodology for quality of service (QoS) degradation prediction for publish/subscribe systems on MANET. Our propose is to use the Auto Regressive Integrated Moving Average (ARIMA) method to predict failure occurrence in the system and to provide optimal QoS provision of applications. Besides, our forecasting algorithm looks for the source behind QoS degradation...
A Personal Network (PN) is a collection of geographically scattered clusters of personal devices, interconnected via a wide-area infrastructure such as Internet. PNs can federate to exchange messages and share simple and composed multimedia content. This paper proposes a publish/subscribe framework for managing composed multimedia delivery in PNs. A multimedia content produced by a device of a given...
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