1,520 research outputs found

    Self-Configuration and Self-Administration of Wireless Grids

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    A Wireless Grid is an augmentation of a wired grid that facilitates the exchange of information and the interaction between heterogeneous wireless devices. The ability of various grid layouts to handle interactions among the grid constituencies is contingent upon the efficient resolution of multiple technical challenges of the grid. These challenges arise due the added complexities of the wireless grid such as the limited power of the mobile devices, the limited bandwidth (including partial connectivity), and the increased dynamic nature of the interactions involved. This paper focuses on the configuration and administration issues of the wireless grid. The proposed grid topology and naming protocol can allow self-configuration and self-administration of various possible wireless grid layout

    WIRELESS GRIDS: APPROACHES, ARCHITECTURES, AND TECHNICAL CHALLENGES

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    Grid computing and grid topologies are attracting a growing amount of attention. Originating as a concept for sharing computing resources among wired participants, the grid concept is gradually been extended into the wireless world. A Wireless Grid is an augmentation of a wired grid that facilitates the exchange of information and the interaction between heterogeneous wireless devices. While similar to the wired grid in terms of its distributed nature, the requirement for standards and protocols, and the need for adequate Quality of Service; a Wireless Grid has to deal with the added complexities of the limited power of the mobile devices, the limited bandwidth, and the increased dynamic nature of the interactions involved. Depending on the nature of the interactions among the constituencies served by the wireless grid, various layouts can be envisaged. The ability of these models to address needs at the enterprise, partner, and service levels is contingent upon the efficient resolution of multiple technical challenges of the gri

    Development of Online Course System and an Open Access Online Repository

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    This Project was divided in to two phases: the first phase comprising of development of an online course system for the institute with the help of moodle. Moodle( modular object oriented dynamic learning environment) is an open source software package for producing internet-based courses and web sites. It's an ongoing development project designed to support a social Constructionist framework of education. Moodle is provided freely as Open Source software (under the GNU Public License). Basically this means Moodle is copyrighted, but that we have additional freedoms of improvising the source code. The 2nd Phase of the project was that of deployment of an open access online repository system using E-prints. EPrints is an open source software package for building open access repositories that are compliant with the Open Archives Initiative Protocol for Metadata Harvesting. It shares many of the features commonly seen in Document Management systems, but is primarily used for institutional repositories and scientific journals. EPrints has been developed at the University of Southampton School of Electronics and Computer Science and released under a GPL license

    Autonomic Systems

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    An autonomic system is defined as self-configuring, self-optimizing, self-healing, and self-protecting. We implemented the Autonomic Cluster Management System (ACMS), a low overhead Java application designed to manage and load balance a cluster, while working at NASA GSFC. The ACMS is a mobile multi-agent system in which each agent is designed to fulfill a specific role. The agents collaborate and coordinate their activities in order to achieve system management goals. The ACMS is scalable and extensible to facilitate future development

    A private cloud infrastructure for desktop virtualization & application delivery based on Xen

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    Todays computing environment requires IT departments to confront more PC management challenges than they did just a few years ago. With the increment in the complexity of software, more computing power is required for their execution resulting in cost and maintenance to surge up. Additional challenges stem from the need to access applications and data anywhere and from any device. To reduce maintenance, cost and time, desktop virtualization and application delivery come handy. Desktop virtualization prospects to offer a new, cost efficient paradigm shift to cater the demand for resources while amplifying the return on investment. Additionally, desktop virtualization can provide more dynamic streamlined management by isolating the elements of the traditional desktop computing stack. So, virtualized desktop is the key to progress towards a pervasive computing in cloud computing era. As the pace of cloud adoption accelerates, a high degree of flexibility will be the clue to architecting environments that provide for highly secure and available application delivery. This thesis describes the design, installation and deployment of a private cloud using Xen open sourced software solutions within the organization. A private cloud is setup in a virtualized environment of VMware hypervisor for virtual desktop delivery and application streaming to remote users on the LAN through a browser interface over a secured connection. The users of this service would be able to remotely login and access the virtual environment using the given authorized id over the browser

    Enterprise Feedback Survey Tool

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    Many corporations in the United States are continuously expanding and improving their ability to gather customer feedback and incorporate the feedback into their business processes. It’s fairly easy to obtain reliable feedback within small, specialized teams with clearly defined roles and objectives. It becomes more difficult in larger IT organizations or those with complex relationships to gain such essential information needed to continue improving and prosper. That brings the need for IT organizations to explore comprehensive feedback solutions to provide accurate results. Information Technology (IT) Feedback project lifecycle must consist of how to designing the Feedback Survey web tool, assign data collection responsibilities to groups that are in the best position to collect the information, specify reporting mechanisms and templates, and define policies such as system access. This paper will explore issues in effective feedback system, discuss the enormous benefits of having the right feedback solution in place, and illustrates how the Feedback Survey system enables the implementation of a comprehensive Enterprise Feedback Survey program for IT organizations, utilizing the Internet as a way of delivery. To determine the response of certain specialists within IT organization, it was decided to conduct a pilot survey to selective Network Operations team members. This is just a pilot survey that had not been conducted prior to the creation of the Feedback Survey system in the paper. Details of this pilot survey are discussed in this paper

    College Senate Minutes May 18, 2019

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    Minutes for the meeting of the College Senate on May 18, 2017

    Network virtualization as an integrated solution for emergency communication

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    In this paper the Virtual Private Ad Hoc Networking (VPAN) platform is introduced as an integrated networking solution for many applications that require secure transparent continuous connectivity using heterogeneous devices and network technologies. This is done by creating a virtual logical self-organizing network on top of existing network technologies reducing complexity and maintaining session continuity right from the start. One of the most interesting applications relies in the field of emergency communication with its specific needs which will be discussed in this paper and matched in detail against the architecture and features of the VPAN platform. The concept and dynamics are demonstrated and evaluated with measurements done on real hardware

    An Autonomic Cross-Platform Operating Environment for On-Demand Internet Computing

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    The Internet has evolved into a global and ubiquitous communication medium interconnecting powerful application servers, diverse desktop computers and mobile notebooks. Along with recent developments in computer technology, such as the convergence of computing and communication devices, the way how people use computers and the Internet has changed people´s working habits and has led to new application scenarios. On the one hand, pervasive computing, ubiquitous computing and nomadic computing become more and more important since different computing devices like PDAs and notebooks may be used concurrently and alternately, e.g. while the user is on the move. On the other hand, the ubiquitous availability and pervasive interconnection of computing systems have fostered various trends towards the dynamic utilization and spontaneous collaboration of available remote computing resources, which are addressed by approaches like utility computing, grid computing, cloud computing and public computing. From a general point of view, the common objective of this development is the use of Internet applications on demand, i.e. applications that are not installed in advance by a platform administrator but are dynamically deployed and run as they are requested by the application user. The heterogeneous and unmanaged nature of the Internet represents a major challenge for the on demand use of custom Internet applications across heterogeneous hardware platforms, operating systems and network environments. Promising remedies are autonomic computing systems that are supposed to maintain themselves without particular user or application intervention. In this thesis, an Autonomic Cross-Platform Operating Environment (ACOE) is presented that supports On Demand Internet Computing (ODIC), such as dynamic application composition and ad hoc execution migration. The approach is based on an integration middleware called crossware that does not replace existing middleware but operates as a self-managing mediator between diverse application requirements and heterogeneous platform configurations. A Java implementation of the Crossware Development Kit (XDK) is presented, followed by the description of the On Demand Internet Computing System (ODIX). The feasibility of the approach is shown by the implementation of an Internet Application Workbench, an Internet Application Factory and an Internet Peer Federation. They illustrate the use of ODIX to support local, remote and distributed ODIC, respectively. Finally, the suitability of the approach is discussed with respect to the support of ODIC
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