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One of the challenges faced by data-intensive computing is the problem of stragglers, which can significantly increase the job completion time. Various proactive and reactive straggler mitigation techniques have been developed to address the problem. The straggler identification scheme is a crucial part of the straggler mitigation techniques, as only when stragglers are detected not only correctly...
In recent years, the demand for agarwood oil has increased tremendously. Agarwood oil is being used widely in fragrance, incense and religious ceremony. The quality of agarwood oil will determine the price of the oil. However, there are some limitations on using standard approach to classify its quality as they are time consuming, expensive and the results is questionable. This paper presents on the...
The continuous evolution of the telecommunication network architecture has made their network functions to become more available and utilizable. With SDN/NFV network service providers can program their own network functions on the standard commercial hardware platform. SDN/NFV enable more efficient utilization of resources and better service agility. It supports new network services faster and less...
A cloud provider provides, on-demand, physical computing resources to clients. It enables clients to improve their computing delivered resources in virtual machines. However, the cloud provider faces major problems impacting its correct operation. One of these problems is that a cloud provider cannot deliver more resources when it has not enough resources during peak hours. Another problem related...
The emergence of cloud computing as a ubiquitous platform for elastically scaling services has generated need and opportunity for new types of operating systems. A service that needs to be both elastic and resource efficient needs A) highly specialized components, and B) to run with minimal resource overhead. Classical general purpose operating systems designed for extensive hardware support are by...
The EU funded FP7 project T-NOVA, with the specific goal of accelerating the evolution of NFV, proposes an open architecture to provide Virtual Network Functions as a Service (VNFaaS), together with a dynamic, and flexible platform for the management of Network Services (NSs) composed by those Virtual Network Functions (VNFs). The proposed architecture allows operators to deploy distinct virtualized...
Many cloud computing platforms adopt visualization technology to provide cloud services. To achieve high computing performance, many data parallel frameworks are adopted to run the jobs. The job is broken into pieces and farmed out to virtual machines (VMs) to process in parallel. The responses from these VMs are aggregated to produce the final result with concurrent flows. However, the concurrent...
The increasing number of Public Clouds, the large and varied range of VMs they offer, and the provider specific terminology used for describing performance characteristics, makes price/performance comparisons difficult. Large performance variation can lead to Clouds being described as 'unreliable' and 'unpredictable'. The aim of this paper is to offer a basis for making probability-based performance...
Instead of a single circuit dedicated to a particular physical (PHY) layer standard, a Software Defined Radio (SDR) platform embeds several hardware accelerators which enable it to support different modulation schemes. In this study we propose an architecture for a SDR PHY layer based on the Virtual Machine (VM) concept. Once a program is compiled in a portable byte-code, the VM can then execute it...
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