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To allow pervasive and distributed monitoring and control of grid devices and resources, the next-generation electricity grid needs a scalable and reliable two-way communication infrastructure, known as Advanced Metering Infrastructure (AMI). In such communication system, characterized by the interconnection of thousands of resource-constrained embedded devices, such as smart meters and intelligent...
The purpose of this paper is to study the overall savings provided by the utilization of cell breathing in a cellular network taking into account not only the attainable savings in the radio access network (RAN) but also the consequences in the mobile phone. First, we briefly describe some cell breathing algorithms found in literature. None of the references have taken into account so far the impact...
This paper presents the Green Move project, which is currently ongoing at Politecnico di Milano. The goal of Green Move is to create an innovative vehicle sharing system, based on electric vehicles, which can easily be accessed by users with little required infrastructure and few intermediaries. The paper provides an overview of the project, briefly describes the architecture of the system under development,...
Dynamic load management, i.e., allowing electricity utilities to remotely turn electric appliances in households on or off, represents a key element of the smart grid. Appliances should however only be disconnected from mains when no negative side effects, e.g., loss of data or thawing food, are incurred thereby. This motivates the use of appliance identification techniques, which determine the type...
To the best of our knowledge, there have been no efforts in devising power consumption prediction models for an idle server, where this latter contributes approximately 66% of the maximum power drain. In this paper, we propose power consumption prediction models for idle servers by taking into account their constituent components such as processor, memory, hard disk, fan and power supply unit. To...
In this paper, we have developed a system that simultaneously and comprehensively simulates movement of people, motion sensing infrastructure, and air/light control facilities in indoor space like office buildings. This system has been designed to configure, validate and evaluate “task-ambient control systems” that precisely control air and light based on the detected people location and movement...
We are pleased to present the proceedings of the Second International Workshop on Sustainable Internet and ICT for Sustainability (SustainIT 2012). The mission of SustainIT is the creation of a forum for researchers to share ideas about the novel technical challenges arising from the increasing demand for sustainable ICT and the use of ICT for sustainability. SustainIT 2012 is sponsored by theWorking...
Electricity bills of large-scale Internet services are a major component in overall operating costs [1]. As a result, it is increasingly important to identify cost-reduction approaches, either through reducing energy consumption or by strategically avoiding periods or data centers with the highest electricity costs. The first group of approaches based on reduction of energy consumption has been explored...
In this paper we present objectives and expected results of the CoolEmAll project that aims at improving energy-efficiency of data centers. To achieve this goal, CoolEmAll works on data center simulation and visualization tools (SVD Toolkit) and models of data center efficiency building blocks (DEBBs) that will be used by the SVD Toolkit to facilitate simulations and ensure their high quality. Using...
Residential and business buildings account for a very large fraction of the world-wide energy consumption. To improve their energy efficiency, building management systems (BMS) - based on (wireless) sensor and actuator networks - have been proposed. To be effective a BMS must be responsive, robust and scalable. Since its performance is mainly determined by the underlying sensor and actuator network,...
The miniaturization of electronic components and the evolution of wireless communication technologies have stimulated the development and use of Wireless Sensor Networks (WSN) in various applications, such as environmental monitoring, seismic detection, military surveillance, inventory tracking and smart spaces, among others. In general, WSNs consist of battery operated small size sensors, which use...
The GreenNet project aims at re-thinking and redesigning different aspects of the current Internet technologies and network protocols to smartly support hardware power management. The pursued approach exploits two basic features already and largely present in today's networks and devices: the network resource virtualization and the modular architecture of nodes. These features give the opportunity...
This article discusses the role of energy-efficient cloud server-on-chip solutions to reduce the total cost of ownership and the ecological impact of cloud computing data centers. A solution is envisaged exploiting a many core platform based on the new ARMv8 family, which extends the energy efficiency of the classic 32-b RISC ARM architecture to the server computing domain through a 64-b instruction...
Despite the raising awareness in general public on environmental changes and high energy costs, a significant part of energy consumption is still due to an improper use of electrical appliances. Thus, there is a growing interest in developing systems for profiling the use of electrical appliances and suggesting adequate policies for energy saving. In this context, we propose a novel approach to extract...
The Internet connected edge devices require active participation by generating and responding to routine applications/protocols heart-beat messages. Failing to do this will result in loss of their presence over the Internet. A huge amount of energy is wasted every year to keep idle or unused network hosts powered-up 24/7 only to maintain the network presence for remote access, file sharing and other...
Base stations have been identified to be the most power consuming part in current mobile networks. Since their power profile only depends to a small fraction on the actual traffic load, putting some base stations in sleep mode has been identified as a solution to scale the network's power consumption with the actual load. However, the traditional cellular approach limits the achievable energy efficiency...
This paper describes the implementation of an energy efficient Optical Network Unit (ECONU) on an Altera Stratix 4GT Field Programmable Gate Array (FPGA). An overview of the ECONU architecture along with its frame format design is also provided. The Finite State Machine (FSM) implementation for switching the ONU “on” and “off” is based on the sleep request encoded in the frames. The performance of...
This paper briefly describes the objectives of the TREND (Toward Real Energy-efficient Network Design) Network of Excellence of the European Commission 7th Framework Programme, and outlines some of the main results obtained so far within the project, looking at wireless access networks, core networks, and content distribution issues.
Domestic energy demand accounts for about 30% of overall energy use. The IDEAL project uses a variety of IT methods to investigate whether, and in which social groups, feedback of personalised, household-specific and behaviour-specific information results in greater reduction in energy use than overall consumption information reported by Smart Meters. It is a sociotechnical study, concentrated on...
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