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Article
Publication date: 1 November 2005

Giuseppe Anastasi, Marco Conti, Enrico Gregori, Andrea Passarella and Luciana Pelusi

Pervasive services and smart environments are becoming more and more popular as an ever‐increasing number of people enjoys these services typically by means of portable devices…

Abstract

Pervasive services and smart environments are becoming more and more popular as an ever‐increasing number of people enjoys these services typically by means of portable devices. These devices are battery‐fed and, thus, energy efficiency is a critical factor for the deployment of pervasive services. In this paper we focus on multimedia streaming services for mobile users. Specifically, we consider a scenario where mobile users with Wi‐Fi devices access the Internet to receive audio files from a remote streaming server. We propose a proxybased architecture and an energy‐efficient streaming protocol that minimize the energy consumption of the Wi‐Fi interface at the mobile device, while guaranteeing the real‐time constraints of the audio streaming. The experimental analysis performed on a prototype implementation shows that our solution allows an energy saving ranging from 76% to 91% of the total consumption due to the network interface. Moreover, it also preserves a good user‐level Quality of Service.

Details

International Journal of Pervasive Computing and Communications, vol. 1 no. 4
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 22 December 2020

Jorge Furtado Falorca

This study aims to present a strategic framework aiming to streamline building operation and sustainability issues. To make available a further contribution to respond to…

Abstract

Purpose

This study aims to present a strategic framework aiming to streamline building operation and sustainability issues. To make available a further contribution to respond to Coronavirus Disease 2019 (COVID-19), an operational prevention guideline relying on the level of spread risk has also been developed, primarily intended for users when accessing and circulating within common spaces of buildings in general.

Design/methodology/approach

The research approach involved the development of a whole theory, essentially based on a qualitative design, by means of tree schematic representations and explanatory frames. It presents part of a model already developed (called SIAPME), although, in general, besides integrating the underlying aspects of the individual experience of daily life, it is based on insights and impressions taken from the literature review.

Findings

With an identity of its own, this study offers an overview of an alternative set of well-founded and integrated strategies to improve working processes in a number of fields of the building operation function. A structured vision has thus, been provided with interest in certain key topics of the present time, such as energy management, comfort and sustainability. Still, in this context, based on a frame of knowledge gathered to date, a current, innovative and simple guidance has also been designed to help prevent the contagion of COVID-19.

Research limitations/implications

The draft of procedures is part of an ambitious goal to serve as a well-founded strategic basis for the eventual development of an advanced software solution. As it is mainly limited to qualitative analysis, from which themes and generalisations have been arranged, this research may need more empirical evidence and additional work will be necessary to overcome any gaps that may be found.

Practical implications

An overall assessment of this study seems to corroborate the idea that a significant impact on the developments in building operation can occur if stakeholders seek a more integrated way of management, based on cross-referencing of current issues. At a time when great uncertainties remain and knowledge advances are in full swing, the designed framework aims to be an added input towards already existing research. Furthermore, it can be seen as a valuable contribution to improving related software applications.

Originality/value

The originality lies in trying to better understand how and in which aspects the general day-to-day management of building operation can be handled more effectively, sustainable and framed, following a reasoned scientific line, in addition of trying to figure out greater capacity to deal with users’ contagions, especially in the existing context of the pandemic.

Details

Journal of Facilities Management , vol. 19 no. 2
Type: Research Article
ISSN: 1472-5967

Keywords

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