The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We consider in this paper a synchronous dataflow (SDF) scheduling problem in the context of a multimedia real-time application. A SDF is in our context a chain of non-preemptive processing tasks in charge of the treatment of multimedia data blocks, denoted tokens. SDF has been wildly used in DSP (digital signal processor) design environments over the past ten years. The application relies on source,...
In numerous computational applications in mechanics, in engineering, as well as, in financial issues, the ability of manipulating instantly the state vector from the input is more than significant. Thus, in this paper, we extend a method for the instantly state transferring of linear singular descriptor differential systems, which is based on impulsive distributions. Using linear algebra techniques...
This paper describes a new scheme for generating paths that are optimized for faster execution while keeping a certain amount of clearance away from obstacles. An optimized path is first extracted from multiple query PRM using a Lazy A* algorithm with a weighted Linfin norm, this latter is post-processed to correct its clearance to over a desired threshold in regions where it is geometrically possible...
Resource conflict is an outstanding problem in concurrent multiple projects with sharing a common and limited resource pool, and it often results in lower performance of these projects. Therefore, it is important and urgent to find an effective method for scheduling multiple projects with limited resources. A mathematical model for the multi-project scheduling problem with resource-constrained is...
Modern distributed systems that have to avoid performance degradation and system overload require several runtime management decisions for load balancing and load sharing, overload and admission control, job dispatching and request redirection. As the external workload and the internal resource behavior of the modern system is highly complex and variable, self-adaptive techniques require a stable...
Peer-to-Peer (P2P) IPTV applications have increasingly been considered as a potential approach to online broadcasting. These overcome fundamental client-server issues and introduce new, self-management features that help improving performance. Recently, many applications such as PPlive, PPStream, Sopcast, and Joost have been deployed to deliver live and video on demand streaming via P2P. However,...
Ambient assisted living (AAL) applications are intended to allow elderly people to stay at home while connected to their family and medical staff. These applications involve several services as health-care services or infotainment, which are executed on different environments such as hospital, proximity doctor, family homes. These environments constitute a distributed, heterogeneous, highly dynamic...
The increased complexity of today's distributed, composite, Web-based systems presents difficult and unique systems management problems. The way these systems interact, and the fact that they often span organizational boundaries, render them difficult to monitor and manage. Autonomic computing has emerged as a promising approach to the management of complex systems. A key to realizing fully autonomic...
Topology Control (TC) is one of the most important techniques used in wireless ad hoc and sensor networks to reduce energy consumption and radio interference, The goal of this technique is to control the topology of the graph representing the communication links between network nodes with the purpose of maintaining some global graph property (e.g., connectivity), while reducing energy consumption...
Microreboot is one of the most efficient self recovery technologies for mission-critical system. But some limitations still exist in the existing microreboot methods such as demand of componentization and loosing coupling etc. In order to eliminate these limitations, we propose a more flexible and usable microreboot method called mixed reboot in this paper, which systematically combines coarse-grained...
With the emergence of pervasive computing environments, mobile information sharing and retrieval is becoming an exciting domain that challenges information scientists. In this paper, we describe a hybrid peer to peer context-aware framework for building mobile information sharing applications. A scalable and flexible architecture based on JXTA is presented. The architecture called "JHPeer"...
As long as computers continue to get more CPU processing power, data centers need to optimize their power usage. We can do this and maintain the same complexity level as before by using virtualized environments. We can put a large number of small isolated servers, inside a large one and improve a large number of values like the wattage or power consumption, space usage, and resource usage. In this...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.