3,365 Hits in 3.1 sec

Pervasive Communications for Care Professionals in Hospitals

Chih-Yen Chiang, Po-Yen Lin, Chih-Ning Huang, Yi-Chieh Chou, Woei-Chyn Chu, Chia-Tai Chan, Pi-Chung Wang
2008 2008 2nd International Conference on Bioinformatics and Biomedical Engineering  
Several well-known SIP based VoWLAN services include powerful features for medical workers, such as One-Number service, Follow-me service and Three-way conference call [4] .  ...  Phone WiFi Phone WiFi tag WiFi tag WiFi tag WiFi tag PDA  ... 
doi:10.1109/icbbe.2008.667 fatcat:rjxfvbegyze2pczyc7ahzchm2u

Mobility and service discovery in opportunistic networks

Mikko Pitkanen, Teemu Karkkainen, Jorg Ott
2012 2012 IEEE International Conference on Pervasive Computing and Communications Workshops  
Past research on opportunistic communications has demonstrated the power of mobile phones as information mediators and content providers to co-located devices.  ...  This paper discusses several factors that affect the discoverability of pervasive services with current existing devices in light of their practical limitations.  ...  All WiFi based solutions in mobile devices are limited by power saving features, that call for the radio to be inactive as much as possible.  ... 
doi:10.1109/percomw.2012.6197480 dblp:conf/percom/PitkanenKO12 fatcat:ofqktt6xdvfhfmv2bfbe22wlby

HMM-driven Smart White-space-aware Frame Control Protocol for coexistence of ZigBee and WiFi

Jie Yuan, Ted Ward, Sam Honarvar, Tingting Chen, Johnson Thomas
2013 2013 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops)  
Based on the HMM model of white spaces and the analysis of system performance we develop a novel ZigBee frame control protocol called HMM-driven Smart White-space-aware Frame Control Protocol which can  ...  Our approach is to learn a Hidden Markov Model (HMM) based on traces of WiFi whitespaces in the current network.  ...  ZigBee devices have a power that is typically 20dB lower than that of WiFi devices.  ... 
doi:10.1109/percomw.2013.6529513 dblp:conf/percom/YuanWHCT13 fatcat:gpxkqlim2zb3ximv34d73cbcw4

Extending Use Cases to Support Activity Design in Pervasive Mobile Games

Luis Valente, Bruno Feijo
2014 2014 Brazilian Symposium on Computer Games and Digital Entertainment  
In this paper, we propose a template-based language to design activities in pervasive mobile games in the conceptual design phase, helping to fill a gap between the preproduction and production stages  ...  We define a template for activity specification based on an extension of traditional use case templates.  ...  In a nutshell, a pervasive mobile game is a context-aware game that uses mobile devices, being a subset of pervasive games.  ... 
doi:10.1109/sbgames.2014.11 dblp:conf/sbgames/ValenteF14 fatcat:huagmx3abnhmfjzbyeoemdlwsy

The iBICOOP middleware: Enablers and services for emerging pervasive computing environments

Amel Bennaceur, Pushpendra Singh, Pierre-Guillaume Raverdy, Valerie Issarny
2009 2009 IEEE International Conference on Pervasive Computing and Communications  
Content sharing and social networking are two activities that users now routinely engage in on a range of connected devices.  ...  However users have to face arcane configuration panels for setting up connectivity, heterogeneity in the human-machine interaction models, differences in devices' capabilities and a profusion of tools/  ...  While context-aware service discovery service can be devised for pervasive environments [18] , they require powerful nodes to forward discovery messages across networks in the environment, and raise energy  ... 
doi:10.1109/percom.2009.4912851 dblp:conf/percom/BennaceurSRI09 fatcat:rk72ypyefrhhvn6632udkzyht4

Energetic performance of service-oriented multi-radio networks

Mauro Caporuscio, Damien Charlet, Valerie Issarny, Alfredo Navarra
2007 Proceedings of the 6th international workshop on Software and performance - WOSP '07  
Pervasive services abstract the various digital resources, from base sensor/actuator (e.g., display) to advanced applications (e.g., nomadic collaborative gaming).  ...  Indeed, multi-radio networking is a key enabler of the pervasive computing vision, as it promotes anytime, anywhere access to the digital world, whether proximity-based or not.  ...  Scale : WiFi bandwidth b) Power consumption of the radio interfaces zoomed around Bluetooth bandwidth Fig. 1 . 1 Power consumption of Bluetooth and WiFi interfaces according to bitrate Figure 4 4 illustrates  ... 
doi:10.1145/1216993.1217002 dblp:conf/wosp/CaporuscioCIN07 fatcat:6kiva7wkgjdi3lqn6ywlfh2f4m

A Signal Adaptation Mechanism for Power Optimization of Wireless Adapters

Christos Bouras, Vaggelis Kapoulas, Georgios Kioumourtzis, Kostas Stamos, Nikos Stahopoulos, Nikos Tavoularis
2015 International Journal of Wireless Networks and Broadband Technologies  
This manuscript introduces, implements and evaluates a feedback-based adaptation mechanism that adjusts the transmission power of a wireless card on commodity mobile devices.  ...  Main focus of this work is to minimize the power consumption by adjusting the transmission power of the wireless card, thus extending the battery life, while negative effects on connection quality are  ...  Research in devices such as smartphones has shown that WiFi adapters are responsible for a significant percentage of the consumed power, and thus energy savings in this area are very important for devices  ... 
doi:10.4018/ijwnbt.2015070104 fatcat:wsu6xl655vbjti5fpyufrrhvsu

Towards context-aware and resource-driven self-adaptation for mobile handheld applications

Davy Preuveneers, Yolande Berbers
2007 Proceedings of the 2007 ACM symposium on Applied computing - SAC '07  
This statement holds as well for pervasive computing applications.  ...  Context-awareness can help to adapt and personalize applications or to optimize resource usage.  ...  Obviously, the power consumption for WiFi-based techniques is the highest. However, if WiFi network access is already used for the IM application, then the extra overhead is negligible.  ... 
doi:10.1145/1244002.1244255 dblp:conf/sac/PreuveneersB07 fatcat:4vp4eczfvngobpiekgf6lkau2a


2014 Procedia Computer Science  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 532 Power-aware  ...  Rice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368 Evaluating the Raw Potential for Device-to-Device Caching via Co-location X.  ... 
doi:10.1016/s1877-0509(14)00957-0 fatcat:xvzb2nvkzrafdgrdxge3bqo5oe

Demo abstract MoodChat: Using context-awareness to connect likeminded co-located individuals

Tomas Diaz, Christine Julien
2015 2015 IEEE International Conference on Pervasive Computing and Communication Workshops (PerCom Workshops)  
Grapevine provides a very lightweight but potentially lossy way to efficiently share context information among a group of co-located pervasive computing devices using just device-to-device connections  ...  Further, Grapevine embodies abstractions that allow flexible definition of contextdefined groups, i.e., clusters of co-located users that are similar in some way based on their context values.  ...  Like much work on context-awareness in pervasive computing, we take a wide perspective on the nature of context.  ... 
doi:10.1109/percomw.2015.7134022 dblp:conf/percom/DiazJ15 fatcat:pl7ervp4angj3n3ynymiqciujq

System challenges for ubiquitous & pervasive computing

Roy Want, Trevor Pering
2005 Proceedings of the 27th international conference on Software engineering - ICSE '05  
The Hardware platforms used to implement these systems encapsulate significant computation capability in a small formfactor, consume little power and have a small cost.  ...  The terms Ubiquitous and Pervasive computing were first coined at the beginning of the 90's, by Xerox PARC and IBM respectively, and capture the realization that the computing focus was going to change  ...  of WiFi, but can rely on the low standby power of Bluetooth.  ... 
doi:10.1145/1062455.1062463 dblp:conf/icse/WantP05 fatcat:dlqazucrvfecvpa7apdh4exrga

Utilization Possibilities of Area Definition in User Space for User-Centric Pervasive-Adaptive Systems [chapter]

Ondrej Krejcar
2009 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
I created a location based system enhancement for locating and tracking users of indoor information system.  ...  The ability to let a mobile device determine its location in an indoor environment supports the creation of a new range of mobile information system applications.  ...  To let a mobile device determine its own position is needed to have a WiFi adapter still powered on. This fact provides a small limitation of use of mobile devices.  ... 
doi:10.1007/978-3-642-03569-2_14 fatcat:4xvmd43hi5ax3jutvabcxnpzeq

Complex Event Processing Using IOT Devices Based on Arduino

Mahir Kaya, Yasemin Cetin-Kaya
2017 International Journal on Cloud Computing Services and Architecture  
Developers can easily develop many smart space systems by connecting various sensors to an Arduino as an internet of thing device.  ...  A publish-subscribe event based system is implemented on the central server. A mobile user is subscribed to the desired event topic.  ...  ZigBee communication protocol based on low data rate for home devices such as washing machine, lamp, TV and Wi Fi protocols based on high data rate for multimedia devices become state of the art.  ... 
doi:10.5121/ijccsa.2017.7602 fatcat:7wp5jutsjfhlrbt65cnhqvw5mm

An Heterogeneous wireless networks testbed for Smart Environment scenarios

Stefano Melzi, Stefano Napoli, Alberto Pollastro, Scott Fowler
2014 2014 IEEE 19th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)  
based localization, which can be carried out over the WiFi Access network.  ...  for battery powered devices [6] .  ... 
doi:10.1109/camad.2014.7033229 dblp:conf/camad/MelziNPF14 fatcat:4jfhu62bznh6lhw7s2f4hhauyu

Ubiquitous and Context-Aware Computing Modelling: Study of Devices Integration in Their Environment [chapter]

Francisco Gregório, Vítor Santos
2019 Advances in Intelligent Systems and Computing  
In the proposed research, it is suggested the development of new scenario building based on a current ubiquitous computing model dedicated to the environment context-awareness.  ...  In an almost imperceptible way, ubiquitous and context-aware computing make part of our everyday lives, as the world has developed in an interconnected way between humans and technological devices.  ...  Since BLE beacons are of low price, small size and independent from power supply, it can be considered a supplement to an existent WiFi network.  ... 
doi:10.1007/978-3-030-11051-2_64 fatcat:uw2ggay6erfe7bvr7amqv3ykpa
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