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1980 marked the start of a boom in radiofrequency identification (RFID) technology, initially associated with a growing need for traceability. In view of the technological progress and lower costs, RFID's area of application became much broader and, today, multiple business sectors take advantage of this technology. But in order to achieve the maximum benefits of RFID technology, the RFID information...
Communications are required to operate in dynamic environments with random mobile devices in wireless networks, particularly in mobile ad hoc networks (MANETs). This unpredictable mobility is, in the most case, the principal cause of links breakage between nodes and their MPRs (Multi-point relays). To reduce the mobility effect in this kind of networks, we focus on the link lifetime. Therefore, we...
The main ad hoc routing protocols that were proposed generally operate only on flat networks. However the IP networks have always been of a hierarchical nature, for scalability and manageability reasons. In this paper, we propose a novel clustering algorithm for OLSR based on the density and mobility of nodes. Our algorithm takes into account the node mobility and gives major improvements regarding...
The performance of a Mobile Ad hoc Network (MANET) is closely related to the capability of the implemented routing protocol to adapt itself to unpredictable changes of topology network and link status. The Optimized Link State Routing (OLSR) protocol is a one key of the proactive routing protocols for MANETs. It is based on the multi-point relays (MPRs) technique to reach all nodes in the network...
ZRP (Zone Routing Protocol) is a hybrid routing protocol that combines proactive and reactive techniques. It distinguishes between two areas: proactive (or intra-zone) corresponding to the N-neighborhood in which it applies a proactive technique and reactive (or inter-zone) corresponding to the rest of the network (excluding the N-neighborhood), in which the reactive approach is applied. This hybrid...
Recent technological advances in miniaturization and wireless communication have made Wireless Sensor Networks an active research field. The increasing number of multimedia and real-time applications for Wireless Sensor Networks has led to a growing interest in Quality of Service for this category of networks. In this paper, we propose a QoS-geographic and energy aware routing protocol for Wireless...
In this paper, we investigate the use of multi-criteria approaches to enhance the routing process in MPLS networks. Dealing with distributed routing to select the best path between a source and a destination, we have included in our experiment the concept of multi-criteria which is more adapted to actual applications needs. Our proposition is fully based on the Distributed Multi Criteria Routing DMCR...
The dynamic nature of mobile ad hoc networks (MANETs) is attributed to several inherent characteristics, such as variable link behavior, node movements and changing network topology. Providing quality of service (QoS) in such a dynamic environment is very difficult. QoS-aware routing is one of the QoS support that provides QoS at the network layer. In the presence of high mobility, this QoS solution...
The performance of routing protocols in a mobile ad hoc network (MANET) is related to the network topology and nodes mobility. In order to ensure good performances of routing protocols in MANET, it is necessary to take into account the mobility criterion when choosing best routes in the network. In this paper, we propose a new measure of the network mobility which is relative and lightweight. Relative...
In Internet user's traffic crosses several areas. Increasingly, users are demanding quality of service (QoS) from beginning to end. Therefore, it is necessary to have a global schema of differentiation not only in the areas which make up the network backbone, but also in access networks that are also often bottlenecks. In this paper, we propose a global schema of QoS management Using DiffServ/MPLS...
Web services QoS management frameworks proposed in the literature deal essentially with issues such as QoS specification, QoS-based discovery and selection, and QoS monitoring of Web services. However, only few works have considered the issue of load distribution in a Web services context. In this paper, we investigate three models that might be used to achieve load distribution in a Web services...
The Fuzzy Radial basis function Neural Networks (FRBFN) for software cost estimation is designed by integrating the principles of RBFN and the fuzzy C- means clustering algorithm. The architecture of the network is suitably modified at the hidden layer to realise a novel neural implementation of the fuzzy clustering algorithm. Fuzzy set-theoretic concepts are incorporated at the hidden layer, enabling...
In this paper, we present a comparing framework of two proposed approaches for modeling interactive systems using scenarios as defined by the Unified Modeling Language (UML). Scenarios are first transformed into partial specifications and merged to obtain a global specification capturing the behavior of any object of the system or the behavior of the entire system. From the global specification, a...
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