2015 Sustainable Internet and ICT for Sustainability (SustainIT)最新文献_第3页

Energy consumption trade-offs for XML compression on embedded devices 嵌入式设备上XML压缩的能耗权衡

2015 Sustainable Internet and ICT for Sustainability (SustainIT) Pub Date : 2015-04-14 DOI: 10.1109/SustainIT.2015.7101382

Jiva N. Bagale, John P. T. Moore, Antonio D. Kheirkhahzadeh, Yasmine Z. Rosunally

引用次数: 1

Exploring the dimensions of eco-feedback in the wild 探索野外生态反馈的维度

2015 Sustainable Internet and ICT for Sustainability (SustainIT) Pub Date : 2015-04-14 DOI: 10.1109/SUSTAINIT.2015.7101374

Filipe Quintal, N. Nunes, Valentina Nisi

引用次数: 2

Energy efficiency solutions for the mobile network evolution towards 5G: an operator perspective 面向5G移动网络演进的能效解决方案:运营商视角

2015 Sustainable Internet and ICT for Sustainability (SustainIT) Pub Date : 2015-04-14 DOI: 10.1109/SustainIT.2015.7101367

Damiano Rapone, D. Sabella, Maurizio Fodrini

{"title":"Energy efficiency solutions for the mobile network evolution towards 5G: an operator perspective","authors":"Damiano Rapone, D. Sabella, Maurizio Fodrini","doi":"10.1109/SustainIT.2015.7101367","DOIUrl":"https://doi.org/10.1109/SustainIT.2015.7101367","url":null,"abstract":"This paper focuses on techniques or actions that the network operator should consider for the mobile network's evolution towards 5G from a sustainability point of view. To this end, the energy consumption of the Radio Access Network (RAN) is assessed when considering different load conditions (obtained by means of actual daily traffic profiles extracted from the live network) and different yearly traffic forecasts. An overview of different \"what-if\" scenarios towards 2020 and beyond is provided and energy consumption of the network is assessed by considering evolutionary Power Models (PMs) of future Base Stations (BSs) related to different Radio Access Technologies (RATs). Together with evolutionary PMs, many Energy Efficiency (EE) features that may be implemented within the network are also considered, with particular focus on EE features evaluated at higher time scale (from minutes to years), i.e., related to progressive network renewal with traffic steering options and legacy RATs' phase-off policies. These have been evaluated by using a software tool fed by actual traffic profiles, aiming at assessing EE performance at network level, by also considering the European Telecommunications Standards Institute (ETSI) EE specification ES 203 228, which is based on homogeneous clusters' evaluations that may be extrapolated at country level, providing useful information on the possible evolutions of the mobile networks in the view of future 5G systems.","PeriodicalId":229673,"journal":{"name":"2015 Sustainable Internet and ICT for Sustainability (SustainIT)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121100746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Optimizing QoS, performance, and power efficiency of backup services 优化备份业务的QoS、性能和功耗

2015 Sustainable Internet and ICT for Sustainability (SustainIT) Pub Date : 2015-04-14 DOI: 10.1109/SustainIT.2015.7101359

L. Cherkasova, A. Zhang

{"title":"Optimizing QoS, performance, and power efficiency of backup services","authors":"L. Cherkasova, A. Zhang","doi":"10.1109/SustainIT.2015.7101359","DOIUrl":"https://doi.org/10.1109/SustainIT.2015.7101359","url":null,"abstract":"For most businesses, backup is a daily operation that needs to reliably protect diverse digital assets distributed across the enterprise. Efficiently processing ever increasing amounts of data residing on multiple desktops, servers, laptops, etc., and providing dynamic recovery capabilities becomes a high priority task for many IT departments. Driven by the advances in cloud computing and Software as a Service (SaaS) delivery model, IT departments are transitioning from providing highly customized services to offering on demand services which can be requested and canceled instantly. Backup service providers must be able to react efficiently to on-demand requests and cannot afford labor intensive resource planning and manual adjustments of schedules. Our goal is to automate the design of a backup schedule that minimizes the overall completion time for a given set of backup jobs. This problem can be formulated as a resource constrained scheduling problem where a set of n jobs should be scheduled on m machines with given capacities. In this work, we compare the outcome of the integer programming formulation with a heuristic-based job scheduling algorithm, called FlexLBF. The FlexLBF schedule produces close to optimal results (reducing backup time 20%-60%) while carrying no additional computing overhead and scaling well to efficiently process large datasets compared to the IP-based solution. Moreover, FlexLBF can be easily analyzed in a simulation environment to further tune a backup server configuration for achieving given performance objectives while saving power (up to additional 50% in our experiments). It helps to avoid guess-based configuration efforts by system administrators and significantly increase the quality and reliability of implemented solutions.","PeriodicalId":229673,"journal":{"name":"2015 Sustainable Internet and ICT for Sustainability (SustainIT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121859576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2