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Wireless Wakeups Revisited: Energy Management for VoIP over Wi-Fi Smartphones

by Yuvraj Agarwal, Ranveer Chandra, Alec Wolman, Paramvir Bahl, Kevin Chin, Rajesh Gupta - PROC. 5 TH INTERNATIONAL CONFERENCE ON MOBILE SYSTEMS, APPLICATIONS AND SERVICES (MOBISYS 07), PUERTO RICO , 2007
"... IP based telephony is rapidly gaining acceptance over traditional means of voice communication. Wireless LANs are also becoming ubiquitous due to their inherent ease of deployment and decreasing costs. In enterprise Wi-Fi environments, VoIP is a compelling application for devices such as smartphones ..."
Abstract - Cited by 78 (6 self) - Add to MetaCart
such as smartphones with multiple wireless interfaces. However, the high energy consumption of Wi-Fi interfaces, especially when a device is idle, presents a significant barrier to the widespread adoption of VoIP over Wi-Fi. To address this issue, we present Cell2Notify, a practical and deployable energy management

Wireless Wakeups Revisited: Energy Management for

by Voip Over Wi-fi Smartphones
"... IP based telephony is rapidly gaining acceptance over traditional means of voice communication. Wireless LANs are also becoming ubiquitous due to their inherent ease of deployment and decreas-ing costs. In enterprise Wi-Fi environments, VoIP is a compelling application for devices such as smartphone ..."
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such as smartphones with multiple wire-less interfaces. However, the high energy consumption of Wi-Fi interfaces, especially when a device is idle, presents a significant barrier to the widespread adoption of VoIP over Wi-Fi. To address this issue, we present Cell2Notify, a practical and deployable en-ergy management

A Cloud-Assisted Energy-Efficient Video Streaming System for Smartphones

by Mohammad Reza Zakerinasab, Mea Wang - in Proc. of ACM/IEEE Int. Symp. on Quality of Service
"... Abstract—Due to the increasing deployment of 3G/4G tech-nologies and the growing computing power of modern smart-phones, video streaming is one of the most popular applications on these devices. In this paper, we propose an energy-efficient multimedia streaming system for smartphones. This system si ..."
Abstract - Cited by 2 (1 self) - Add to MetaCart
si-multaneously utilizes two communication channels: cellular links carrying streaming content from the media Cloud to smartphones and WiFi links enabling cooperation among smartphones. There are three key contributions. First, the system copes with the variable loss rate and bandwidth fluctuation

MORFEO: Saving Energy in Wireless Access Infrastructures

by unknown authors
"... Abstract—Energy efficiency is acknowledged as a pivotal issue for a sustainable development of wireless networking technologies. Traditionally, most works in the area focused on the user equipment, where battery duration represents a key asset. However, as the smartphone and tablet revolution fuels ..."
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a massive deployment of wireless networks, often in the form of WiFi hotspots, more and more attention is expected to be devoted to the energy-efficient management of wireless access infrastructure. These networks tend to be dense and over– provisioned, which in time leads to significant energy

Wireless Sensor Networking in Challenging Environments

by Mo Sha, Raj Jain, Jonathan Turner, Guoliang Xing, Mo Sha , 2014
"... This Dissertation is brought to you for free and open access by Washington University Open Scholarship. It has been accepted for inclusion in All Theses and Dissertations (ETDs) by an authorized administrator of Washington University Open Scholarship. For more information, please contact ..."
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This Dissertation is brought to you for free and open access by Washington University Open Scholarship. It has been accepted for inclusion in All Theses and Dissertations (ETDs) by an authorized administrator of Washington University Open Scholarship. For more information, please contact

ISRN SICS-D--56--SE Improving Low-Power Wireless Protocols with Timing-Accurate Simulation

by Fredrik Österlind, Christer Norström, Janusz Launberg, Karin Fohlstedt, Eva Gudmundsson, Lotta Jörsäter, Kersti Hedman, Orc Lönn, Thomas Ringström, Vicki Knopf, Olle Olsson, Lars Rasmusson, Bengt Ahlgren, Björn Grönvall, Martin Nilsson, Lalle Albertsson, Laura Feeney, Ian Marsh, Jarmo Laaksolahti , 2011
"... I first thank my thesis advisors Thiemo Voigt and Adam Dunkels for being my excellent advisors, and also for being the great colleagues you still are. Thiemo and Adam have complemented each other superbly, giving me feedback, perspectives, insights, and having made every single new venture truly fun ..."
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I first thank my thesis advisors Thiemo Voigt and Adam Dunkels for being my excellent advisors, and also for being the great colleagues you still are. Thiemo and Adam have complemented each other superbly, giving me feedback, perspectives, insights, and having made every single new venture truly fun. My deepest thanks also go to my professor Per Gunningberg, Uppsala University. Per has in a seemingly easy way spotted erroneous assumptions, has valued my research contributions, and has connected my own work with another broader world of research. I want to thank all colleagues in the Networked Embedded Systems group:

Raj Jain! Routing vs Switching

by Raj Jain, Raj Jain Overview, Raj Jain, Label Stacks
"... 1. Networking trends 2. QoS over data networks 3. Label switching 4. Gigabit, 10 Gb Ethernet, RPR 5. Storage area networks 6. IP over DWDM 7. Wireless 8. Voice over IP ..."
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1. Networking trends 2. QoS over data networks 3. Label switching 4. Gigabit, 10 Gb Ethernet, RPR 5. Storage area networks 6. IP over DWDM 7. Wireless 8. Voice over IP

Abstract Multichannel Communication in Contiki's Low-power IPv6 Stack

by Ipv Stack, Beshr Al Nahas, Beshr Al Nahas
"... Vast majority of wireless appliances used in household, industry and medical field share the ISM frequency band. These devices need to coexist and thus are challenged to tolerate their mutual interference. One way of dealing with this is by using frequency hopping; where the device changes its radio ..."
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Vast majority of wireless appliances used in household, industry and medical field share the ISM frequency band. These devices need to coexist and thus are challenged to tolerate their mutual interference. One way of dealing with this is by using frequency hopping; where the device changes its

hardware and mobile web technology Master of Science Thesis in Programme Computer Systems and Networks

by Tomas Ohlson, Tomas Ohlson , 2013
"... Digitising statistics handling through ..."
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Digitising statistics handling through

Human Trust Establishment

by Michael Farb, Manish Burman, Gurtej Singh Ch, Jon Mccune, Adrian Perrig, Michael Farb, Manish Burman, Gurtej Singh, Chandok Jon, Mccune Adrian Perrig , 2011
"... Users regularly experience a crisis of confidence on the Internet. Is that email truly originating from the claimed individual? Is that Facebook invitation indeed from that person or is it a fake page set up by an impersonator? These doubts are usually resolved through a leap of faith, expressing th ..."
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the desperation of users. To establish a secure basis for Internet communication, we propose SafeSlinger, a system leveraging the proliferation of smartphones to enable people to securely and privately exchange their public keys. Through the exchanged authentic public key, SafeSlinger establishes a secure channel
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