Mathieu Lemay

Mathieu Lemay
Inocybe Technologies

About

20
Publications
3,124
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339
Citations

Publications

Publications (20)
Conference Paper
Full-text available
Network Virtualization has led to the emergence of various software-based solutions. Specifically in Data Center Networks (DCNs), virtual switches like Open vSwitch (OVS) are used to interconnect virtual machines (VMs). Such solutions offer good flexibility, yet the performance is not guaranteed. In this paper we propose a hardware-based solution t...
Article
Infrastructure as a Service (IaaS) is considered a prominent model for IP based service delivery. As grid and cloud computing have become a stringent demand for today's Internet services, IaaS is required for providing services, particularly "private cloud," regardless of physical infrastructure locations. However, enabling IaaS on traditional Inte...
Article
Today's information and communications technology (ICT) services emit an increasing amount of greenhouse gases. Carbon footprint models can enable research into ICT energy efficiency and carbon reduction. The GreenStar Network (GSN) testbed is a prototype wide-area network of data centers powered by renewable energy sources. Through their work deve...
Article
Nowadays, reducing greenhouse gas (GHG) emissions is becoming one of the most challenging research topics in Information and Communication Technologies (ICT) because of the overwhelming utilization of electronic devices. Current solutions mainly focus on energy efficiency for saving power consumption at the micro level. Large-scale energy managemen...
Article
Cloud computing services have recently become a ubiquitous service delivery model, covering a wide range of applications from personal file sharing to being an enterprise data warehouse. Building green data center networks providing cloud computing services is an emerging trend in the Information and Communication Technology (ICT) industry, because...
Article
Full-text available
In this article we present a protocol which has been developed for the purposes of providing guidance for estimating the emission reductions that could result from the provision or sourcing of low or zero carbon information and communication technology (ICT) services. This is an increasingly important topic not only because ICT has growing environm...
Chapter
During the last years, a trend has emerged at universities, large enterprises, government institutions, hospitals and public institutions towards acquiring and deploying their own dark-fibre or wavelength networks as opposed to purchasing bandwidth network services from the traditional operators. These institutions usually follow the condominium mo...
Article
Green communication systems and, in broader terms, green information and communications technologies have the potential to significantly reduce greenhouse gas emissions worldwide. This article provides an overview of two issues related to achieving the full carbon abatement potential of ICT. First, green communications research challenges are discu...
Article
Currently, support for digital media is one of the fastest growing requirements of the Internet as demand transitions from services designed to support primarily text and images to those intended also to support rich, high quality streaming multi-media. In response to the need to address this important 21st century communications challenge, an inte...
Conference Paper
Full-text available
As one of the first worldwide initiatives provisioning ICT (Information and Communication Technologies) services entirely based on renewable energy such as solar, wind and hydroelectricity across Canada and around the world, the GreenStar Network (GSN) is developed to dynamically transport user services to be processed in data centers built in prox...
Conference Paper
Full-text available
Today, Data Center Networks (DCNs) are re-architected in different new architectures in order to alleviate several emergent issues related to server virtualization and new traffic patterns, such as the limitation of bi-section bandwidth and workload migration. However, these new architectures will remain either proprietary or hidden in administrati...
Conference Paper
Full-text available
Using smart grids to build low carbon networks is one of the most challenging topics in ICT (Information and Communication Technologies) industry. One of the first worldwide initiatives is the GreenStar Network, completely powered by renewable energy sources such as solar, wind and hydroelectricity across Canada. Smart grid techniques are deployed...
Article
Current network operators are focused mainly on providing and selling network services on top of the network infrastructures they own and manage. The end user has no control over how these services are provided. However, specific requirements are coming from emerging applications that request network and computational resources. These new requireme...
Article
With the rapid and growing volume of green house gas (GHG) we may soon cross a tipping point where there may be dramatic climatic catastrophes such that governments will be forced to order the shutdown of coal powered electrical production or mandate carbon neutrality across all sectors of society. On the other hand, in the event of such a developm...
Article
Full-text available
Purpose – The purpose of this paper is to illustrate the advantages of using the UCLP software for network operators, advanced and regular end users in the research networking community. Design/methodology/approach – This paper provides an example of the deployment of UCLP in the GÉANT2/National Research and Education Networks (NRENs) scenario, and...
Conference Paper
Full-text available
Quality of service (QoS) is difficult to achieve in modern voice over IP (VoIP) systems because software and hardware have a symbiotic relationship. The purpose of this paper is to present an analysis of softswitch quality that identifies where higher quality requirements should be enforced when designing or evaluating VoIP solutions. The work is b...
Conference Paper
Grid applications are becoming an integral part of e-science because of science's need for intensive computing and large knowledge base. In order to have capable applications that interact with real world science, the instruments must be accessible and represented in the grid middleware. In this paper, we present the overview, design and initial im...
Article
Network intelligence along with the ability to automatically respond to traffic changes are key enablers of next generation cost-efficient bandwidth provisioning. To be able to perform network systems research, the Communications Research Centre (CRC) in Ottawa, established a fully functional reconfigurable All-Optical Network (AON) testbed. The em...

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