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Several studies in the last decade have pointed out that many devices, such as computers, are often left powered on even when idle, just to make them available and reachable on the network, leading to large energy waste. The concept of network connectivity proxy (NCP) has been proposed as an effective means to improve energy efficiency. It impersonates the presence of networked devices that are temporally...
Upcoming telecommunication networks are expected to lower energy requirements of current infrastructures, especially at the network edge. That necessarily entails cutting off energy wasted when devices are active, yet idle, just to maintain their presence on the network. To this purpose, the concept of delegating network activity has been introduced to allow devices to enter low power states without...
Smart Grids provide an effective and efficient management of production, transmission, distribution and usage of electricity. One of the main issues in designing applications for Smart Grids is the need to cope with a plethora of different devices, communication protocols and data representations. This paper presents the design of a Home Energy Gateway (HEG) that abstracts heterogeneous devices and...
A network connected host generates/responds to routine applications and protocols heart-beat messages and is considered as disconnected when it fails to do this. Past studies have revealed that about 60–70% people leave their computers powered up 24/7 in the offices and at homes just to maintain the network connectivity. Huge amount of energy savings are possible if these computers can sleep during...
Improving energy efficiency of mobile devices is one of the main challenges to extend the battery life. The Wireless Network Interface Card (WNIC) or 3G is usually considered as primary source of energy consumption. To reduce the energy consumption, different proxying schemes have been proposed in literature mostly focusing on increasing WNIC idle periods through traffic shaping, reducing number of...
Many network-based applications require full time connectivity of the hosts for fate sharing and responding to routine applications/protocols heart-beat messages. Past studies revealed that network hosts are most of the time unused or idle but still kept powered on just to maintain network connectivity. Thus, significant energy savings are possible if the network hosts can sleep when idle. Unfortunately,...
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