Computational grid systems are becoming popular with the rapid spread of computational environments dealing with large-scale applications in various areas. In general, a grid service needs to use a set of resources to complete certain tasks. Thus, in order to provide a grid service, allocating required resources to the grid is necessary. In order to increase the grid service reliability, optima...

Due to the large scale of Grid environment and its rapid expansion, both in Grid resources and Grid network environment, it is getting more imperative to provide a Grid management mechanism that can enable Grid Computing to adapt to various application requirements in a flexible and automated way. This paper proposes to introduce policy-based management, enhanced by active network, to cope with...

Computing grids require the underlying network infrastructure to be properly configured for provisioning of appropriate communications among their nodes. The management of networks and grids are currently executed by different tools, operated by different administrative personnel. Eventually, the grid communication requirements need corresponding support from the network management tools, but s...

In Wireless Sensor Networks (WSNs), localization algorithms could be range-based or range-free. The Approximate Point in Triangle (APIT) is a range-free approach. We propose modification of the APIT algorithm and refer as modified-APIT. We select suitable triangles with appropriate distance between anchors to reduce PIT test errors (edge effect and non-uniform placement of neighbours) in APIT a...

The development of ubiquitous computing and mobility opens challenges for implementation of grid computing in ad hoc network environments. In this paper, a new grid computing implementation for ad hoc networks is proposed. The proposed addition of the ad hoc network protocols suite offers an easy and effective way to exploit the computing power of the network nodes. The model is implemented in ...

Grid computing has been defined as ‘‘coordinated resource sharing andproblemsolving in dynamic,multi-institutional virtual organisations’’ (Ian Foster: http://www-fp.mcs.anl.gov/~foster/); see also [1] for a recent overview of the current status and perceived future directions of the Grid. In practice, the above definition implies that a computation intensive application is distributed across a...

The smart grid (SG) is a promising platform for providing more reliable, efficient, and cost effective electricity to the consumers in a secure manner. Numerous initiatives across the globe are taken by both industry and academia in order to compile various security issues in the smart grid network. Unfortunately, there is no impactful survey paper available in the literature on authentications...

the paper tries to present an improved mathematical model for distribution companies (discos) in order to solve distribution network expansion planning (dnep) problems in the presence of certain resources of distributed generations (dgs) entitled small scale gas engines in the medium voltage grids. with the aim of minimizing investment and operation costs, the recommended model combines a compr...

We propose a novel elastic optical path network where each specific bitrate signal uses its own dedicated fixed grid and one edge of its frequency grid is anchored at a specific frequency. Numerical evaluations using various bitrate signal patterns and network topologies show that the network proposal can almost match the performance of conventional flexible grid networks, while greatly mitigat...