E-ENERGY

In this talk, I will describe work we have been doing with a major TV company to reduce the energy costs of their content distribution, which currently uses 3 different types of network. In the near future, when the networks are unified, and content is ...

Up to one third of the electricity supplied to a data center is required for the operation of the storage subsystem. A typical data-center workload, characterized by short idle periods, prevents traditional disk power management (DPM) from saving ...

The problem of reducing energy usage in datacenter networks is an important one. However, we would like to achieve this goal without compromising throughput and loss characteristics of these networks. Studies have shown that data-center networks ...

Data centres are powerful ICT facilities which constantly evolve in size, complexity, and power consumption. At the same time users' and operators' requirements become more and more complex. However, existing data centre frameworks do not typically take ...

We examine how to re-design the Internet for an energy-constrained future powered by diffuse, intermittent, and expensive power sources. We consider the types of constraints this might place upon the Internet architecture and the manner in which ...

The importance of deploying energy efficient networks has vastly increased due to the rapidly growing nature of power consumption of ICT industry. This requires redesign of networks or modification to existing networks that could prove to be energy ...

A measurement campaign based on commodity wireless sensors shows that the majority of thermostatic loads in a user premise are described by periodic pulse waves. The superposition of these loads results to high peak power demand and costs in the ...

Recent works advocate the possibility of improving energy efficiency of network devices by modulating switching and transmission capacity according to traffic load. However, addressing the trade-off between energy saving and Quality of Service (QoS) ...

The large majority of electrical power in the United States today is generated from fossil feedstocks. While renewable energy sources offer compelling alternatives, there are many challenges and complexities that currently limit their use. The high-...

In this paper we describe an ongoing project which develops an automated residential Demand Response (DR) system that attempts to manage residential loads in accordance with DR signals. In this early stage of the project, we propose an approach for ...

The conflict between energy consumption and battery capacity has become more significant in modern mobile terminals that support various functions in addition to traditional voice. It is of great importance to extend battery lifespan and at the same ...

Recently, energy-efficient computing has become a major interest, both in the mobile and IT sectors. With the advent of multi-core processors and their energy-saving mechanisms, there is a necessity to model their power consumption. The existing models ...

With the widespread development of cloud computing and high speed communications, end users store or retrieve video, music, photo and other contents over the cloud or the local network for video-on-demand, wireless display and other usages. The ...

Many computer systems change into a sleep mode when idle. While this conserves energy it also increases the average latency. In this paper we quantify the effect of state change times on latency and power consumption for a single queuing system with a ...

We consider the power-efficient design of an Internet Protocol (IP)-over-Wavelength Division Multiplexing (WDM) network, tackling the problem of deciding which equipment needs to be installed in both the optical and IP layer. Our model explicitly ...

In this work we propose the routing standby model to save energy in an IP networks during low traffic hours. This model is based on the ability to put in standby mode all the IP processing functionalities of a network node. The main feature of this ...

In this paper we focus the attention on the energy-aware cooperative management of cellular access networks that offer service over the same area. In particular, we propose an approach based on the cooperative game theory to address issues, such as ...

The Ontario electrical grid is sized to meet peak electricity load. If this worst-case load were reduced, the government and Ontario tax-payers could defer large infrastructural costs, reducing the cost of generation and electricity prices. Storage, ...

Growing environmental awareness and new government directives have set the stage for an increase in the fraction of energy supplied using renewable resources. The fast variation in renewable power, coupled with uncertainty in availability, emphasizes ...

Significant investments have been made into deploying phasor measurement units (PMUs) on electric power grids worldwide. PMUs allow the state of the power system -- the voltage phasor of system buses and current phasors of all incident transmission ...

Loads on the electrical grid are multiplexed at distribution transformers in the same way that traffic from data sources is multiplexed at a router. This motivates the use of teletraffic theory to size power distribution networks just as it is used to ...

We consider the problem of minimizing the power consumption of Internet backbone networks by means of power aware design and auto configuration of Points of Presence (PoPs). We show that the problem of achieving a power-optimal PoP design under general ...

In this paper, the issue of non-cooperative, green resource allocation in a multicarrier relay-assisted interference channel is considered. The energy efficiency of a given terminal is defined as the ratio between the throughput of that terminal and the ...

The massive explosion of mobile applications with the ensuing data exchange over the cellular infrastructure is not only a blessing to the mobile user but also has a price in terms of regular discharging of the device battery. A big contributor to this ...

Cloud computing utilizes arbitrary mega-scale computing infrastructures and is currently revolutionizing the ICT landscape by allowing remote access to computing power and data over the Internet. Besides the huge economical impact Cloud technology ...

Server farms are playing an important role in the Internet infrastructure today. However, the increasing power consumption of server farms makes them expensive to operate. Thus, how to reduce the power consumed by server farms has become a important ...

In the current web service, a lot of interactive and multimedia contents are used for delivering information and entertainments. In particular, Adobe Flash, a Rich Internet Application (RIA) technology, is popular for publishing contents, advertisements,...

Unlike prior work on demand management, which typically requires industrial loads to be turned off during peak times, this paper studies the potential to carry out demand response by modifying the elastic load components of common household appliances. ...

Market-based electricity pricing provides consumers an opportunity to lower their electric bill by shifting consumption to low price periods. In this paper, we explore how to lower electric bills without requiring consumer involvement using an ...

The Indian electricity sector, despite having the world's fifth largest installed capacity, suffers from a 12.9% peaking shortage. This shortage could be alleviated, if a large number of deferrable loads, particularly the high powered ones, could be ...