the proliferation of information and communications technology (ict) along with the incremental growth in the use of cloud services, enterprise network and data center technologies in recent years, have caused unprecedented expansion of computer networks. however, the existing network architecture was not well designed to meet the requirements of today's needs. one of the most important pr...

Users or potential users of computing services at research and educational institutions are currently trying to meet their computing needs in cost-effective ways that will also provide them with high-quality services. As these individuals attempt to match their needs against the expanding menu of available alternatives (miniand microcomputers; central campus facilities; and local, regional and ...

In this study, we design a pricing and allocation mechanism for a peer-to-peer (P2P) network that allows users in a firm to effectively share their computing resources. This mechanism allows tasks (incoming jobs) to be allocated to resources (participating peers) in an organization in a decentralized manner. The base case of our P2P mechanism derives the optimal transfer price that maximizes th...

Recent measurements of local-area and wide-area tra c have shown that network tra c exhibits variability at a wide range of scales|self-similarity. In this paper, we examine a mechanism that gives rise to self-similar network tra c and present some of its performance implications. The mechanism we study is the transfer of les or messages whose size is drawn from a heavy-tailed distribution. We ...

The GLEON Research And PRAGMA Lake Expedition – GRAPLE – is a collaborative effort between computer science and lake ecology researchers. It aims to improve our understanding and predictive capacity of the threats to the water quality of our freshwater resources, including climate change. This paper presents GRAPLEr, a distributed computing system used to address the modeling needs of GRAPLE re...

The computer network flow controlproblem has been a recurring theme for long time. The main objective has always been to use network resources efficiently where to prevent the data packet loss, which requires retransmission of the lost information. This article presents the theoretical background necessary to understand the flow control, the existing research in this area and a theoretical back...

A wide range of security services may be available to applications in a heterogeneous computer network environment. Resource Management Systems (RMSs) responsible for assigning computing and network resources to tasks need to know the resource-utilization costs associated with the various network security services. In order to understand the range of security services an RMS needs to manage, a ...