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Wireless Sensor Networks (WSNs) have inherent and unique characteristics rather than traditional networks. They have many different constraints, such as computational power, storage capacity, energy supply and etc. Energy aware routing protocol is very important in WSN, but routing protocol which only considers energy has not efficient performance. Therefore considering other parameters beside energy...
Policy-based management is considered an effective approach to address the challenges of resource management in large complex networks. Within the IU-ATC QoS Frameworks project, a policy-based network management framework, CNQF (Converged Networks QoS Framework) is being developed aimed at providing context-aware, end-to-end QoS control and resource management in converged next generation networks...
In this work, we illustrate our experiences on activities about monitoring of the User Quality of Services (QoS) measurement campaigns. We show the network architecture that has been implemented to achieve QoS tests on all Italian users. Such a network permits to achieve a detailed investigation on the network causes that induce performance degradation and, therefore, it can be assumed as a basis...
According to ITU database about telecommunication regulatory bodies, regulators were responsible to monitor the quality of services in about 84% countries across the world in 2005; furthermore, regulators assigned the quality borders in about 76% of countries. In this paper we use metamodeling strategy to analyze and model the required processes for QoS/SLA management system. This model is developed...
This paper presents a Cross-layer Network Management System (NMS) that allows Service Providers (SPs) to perform cost-effective network resource reservations with their Network Operators (NOs). The novelty of our NMS is that it offers a fresh and promising approach to use the end-users satisfaction level as the metric to perform the resource management. We show that our system is capable of achieving...
Wireless monitor system are widely used in recent years, but there are a few problems to solve, such as scalability and adaptability, and monitor system based on MANET has more difficulties because of multi-hop links and mutable channels. A new MANET monitor system based on Service-oriented architecture (MMS-SOA) is proposed to make the system easier to manage dynamically such as dynamic deployment,...
The quality of the network services has so far rarely been considered in composing and executing scientific workflows. Currently, scientific applications tune the execution quality of workflows neglecting network resources, and by selecting only optimal software services and computing resources. One reason is that IP-based networks provide few possibilities for workflow systems to manage the service...
In order to accomplish the automatic and intelligent management to the satellite network, this paper designs a policy-driven self-management model which integrates all network management function components by policy engine to manage the network. In the model, policy decision point receives soft-faulty events, conducts policy decision-making and sends the results to the corresponding management function...
Software infrastructures for networked enterprises may need data coming from low-level pervasive devices, such as Wireless Sensor Networks (WSNs). However, the complex management of such tiny physical devices is not acceptable for high-level enterprise applications. Hence the need for a middleware layer that hides complexity and supports the management of heterogeneous real-time data coming from the...
In realistic mobile heterogeneous environment, the quality perceived by user is variable and dependant on following major factors: available bit rate variation, packet loss and latency. Even though QoS management is enabled in most modern telecommunication systems, it does not ensure the actual end-user perceived quality of service level. Therefore, to make sure that operator follows SLA provisions,...
This paper presents the technical assessment of the Economic Traffic Management (ETM) mechanisms that have been specified and implemented in the EU FP7 SmoothIT (Simple Economic Management Approaches of Overlay Traffic in Heterogeneous Internet Topologies) project. The proposal inter-relates traditional mechanisms of network management with economic incentives. The most relevant ETM mechanisms are...
Network monitoring is today not only a process to merely gather information about the network status but also the basic step of further important activities of resource management and optimisation. Many network management processes start from the knowledge of the most up to date load status, and the measurement precision is of uttermost importance for an effective reaction. This paper presents a monitoring...
Wireless sensor networks have today emerged as a feasible infrastructure for healthcare applications. This paper addresses the non-trivial performance problems in contention-based wireless networks. We present a method for admission control in contention-based networks, implemented as a component of a performance management system. The test results show that admission control can improve the predictability...
In the next generation Internet, how to protect the QoS of real-time interactive services is an important issue. In order to implement active control of QoS, a network QoS management model of real-time services was established based on Stochastic Process Algebra(SPA) in this paper. The model added special function modules of QoS to carry on real-time QoS monitoring. The specific analysis showed better...
The Context-Aware Broker is a policy-based management system developed by the authors to achieve autonomic communication in delay-tolerant networks. This is in recognition of environment challenges when operating in remote regions, and time, human, and financial resource costs incurred during mission-specific configuration. The Context-Aware Broker seeks to limit cost overheads through achieving a...
Currently, Cloud network operators and service providers are managing server, network and storage resources by various management systems to manage hardware, applications, traffic, and resources monitoring including bandwidth, storage capacity, and throughput utilization. However, these systems are not coordinated with accounting, security and configuration systems to provide end-to-end service management...
In this paper, we provide a control-theoretic treatment of the resource allocations that adaptively occur in a QoS-aware network server system. Here, the target system being controlled is a logical service point that processes the transactions requested by clients using a resource infrastructure, with a goal of maximizing the revenues. Accurate management of resource allocations with a revenue-oriented...
As the global IPTV market is growing fast, assurance of IPTV service quality becomes one of the key factors to the success of IPTV business. To deal with the IPTV service assurance issue, one of the practical approaches that the service provider can apply is to employ the state-of-the-art development technologies (e.g., NGOSS frameworks) to construct an IPTV management platform, in which a number...
Networks have become an integral part of the computing landscape, forming a global interconnection of a staggering number of heterogeneous systems and services. Current research focuses on policy based management and autonomous systems and involves the utilisation of very different languages and technologies in concert. This paper examines four current proposals for autonomous network management and...
Grid systems allow the execution of a class of highly demanding services and applications. These grids involve communication networks, and their links are essential resources for massive data transfers. However, the management of current grid systems requires intervention for efficient service provisioning. Moreover, this need increases with the increase in demand for grid services. Therefore, grid...
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