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Context-for-wireless

Ahmad Rahmati, Lin Zhong
2007 Proceedings of the 5th international conference on Mobile systems, applications and services - MobiSys '07  
Based on our findings, we propose to leverage the complementary strength of Wi-Fi and cellular networks by choosing wireless interfaces for data transfers based on network condition estimation.  ...  The findings from our recent field-collected data from an urban university population show that while network availability is decent, the energy cost of network interfaces poses a great challenge.  ...  We would like to thank the volunteers who participated in our data collection and field validation.  ... 
doi:10.1145/1247660.1247681 dblp:conf/mobisys/RahmatiZ07 fatcat:56udffyicjddtmsbdgu6cq3dni

Context-Based Network Estimation for Energy-Efficient Ubiquitous Wireless Connectivity

A Rahmati, Lin Zhong
2011 IEEE Transactions on Mobile Computing  
In this work, we focus on the use of context information to achieve energy-efficient, ubiquitous wireless connectivity.  ...  Our field-collected data show that the energy cost of network interfaces poses a great challenge to ubiquitous connectivity, despite decent availability of cellular networks.  ...  Last but not least, the authors also thank the volunteers who participated in their data collection and field validation.  ... 
doi:10.1109/tmc.2010.139 fatcat:3oajh25mkzcrzdepo7oe4pus5u

EnVi

Sahil Suneja, Vishnu Navda, Ramachandran Ramjee, Eyal de Lara
2013 Proceeding of the 2013 workshop on Cellular networks: operations, challenges, and future design - CellNet '13  
This paper introduces EnVi, a signalaware scheduler that saves energy for mobile downloads by scheduling data transfers when signal quality is expected to be good, and avoiding communication in other periods  ...  Unfortunately, sustained use of the cellular interface for long-standing data transfers severely reduces the battery life of the device.  ...  Context-for-Wireless [7] also requires training on and maintaining usermobility and usage-context history to select either Wi-Fi or cellular network for communication based on network condition estimation  ... 
doi:10.1145/2482985.2482987 fatcat:a6mpc6rjjrfo3opfmunjaqb2fy

Energy-delay tradeoffs in smartphone applications

Moo-Ryong Ra, Jeongyeup Paek, Abhishek B. Sharma, Ramesh Govindan, Martin H. Krieger, Michael J. Neely
2010 Proceedings of the 8th international conference on Mobile systems, applications, and services - MobiSys '10  
Smartphones have multiple wireless interfaces -3G/EDGE and WiFi -for data transfer, but there is considerable variability in the availability and achievable data transfer rate for these networks.  ...  Moreover, the energy costs for transmitting a given amount of data on these wireless interfaces can differ by an order of magnitude.  ...  Context-for-Wireless [22] uses the history of context information to decide whether it is beneficial, in terms of energy, to use 3G/EDGE or WiFi for data transfer.  ... 
doi:10.1145/1814433.1814459 dblp:conf/mobisys/RaPSGKN10 fatcat:jwnie6fkwngc7l7j44pks5zp7m

An Adaptive Link Layer for Range Diversity in Multi-Radio Mobile Sensor Networks

J. Gummeson, D. Ganesan, M. D. Corner, P. Shenoy
2009 IEEE INFOCOM 2009 - The 28th Conference on Computer Communications  
The wireless radio must enable node-to-node and node-to-basestation communication over distances dictated by application needs, while being energy-efficient and robust to wireless effects introduced by  ...  An important challenge in mobile sensor networks is to enable energy-efficient communication over a diversity of distances while being robust to wireless effects caused by node mobility.  ...  An updated Wake-On-Wireless system [1] and Context-for-Wireless [15] use 802.11 with cellular radios for data transmissions, with a static preference given to 802.11 when available.  ... 
doi:10.1109/infcom.2009.5061917 dblp:conf/infocom/GummesonGCS09 fatcat:i7ijyrmo4rdoplqsycbbzz3hxu

An adaptive link layer for heterogeneous multi-radio mobile sensor networks

Jeremy Gummeson, Deepak Ganesan, Mark Corner, Prashant Shenoy
2010 IEEE Journal on Selected Areas in Communications  
An important challenge in mobile sensor networks is to enable energy-efficient communication over a diversity of distances while being robust to wireless effects caused by node mobility.  ...  Second, we describe a simple protocol that translates the benefits of the adaptive link layer into practice in an energy-efficient manner.  ...  An updated Wake-On-Wireless system [1] and Context-for-Wireless [17] use 802.11 with cellular radios for data transmissions, with a static preference given to 802.11 when available.  ... 
doi:10.1109/jsac.2010.100914 fatcat:fep2pmbd35dkthc2eggvvp66yy

VirtualConnection: Opportunistic Networking for Web on Demand [chapter]

Lateef Yusuf, Umakishore Ramachandran
2010 Lecture Notes in Computer Science  
Wireless interfaces offer ad hoc networking capability, without the need for infrastructure support.  ...  Wireless devices abound from affluent countries to developing countries. Social networks need wide area Internet support.  ...  Projects such as Breadcrumbs [2] and Context-for-wireless [7] , and Blue-Fi [25] allow the use of multiple network adapters for communication but focus on prediction algorithms to determine when to  ... 
doi:10.1007/978-3-642-11322-2_33 fatcat:uw46565lszbcjbxwvfrsos6l5q

Avoiding the Rush Hours: WiFi Energy Management via Traffic Isolation

Justin Manweiler, Romit Roy Choudhury
2012 IEEE Transactions on Mobile Computing  
We design SleepWell, a system that achieves energy efficiency by evading network contention.  ...  WiFi continues to be a prime source of energy consumption in mobile devices. This paper observes that, despite a rich body of research in WiFi energy management, there is room for improvement.  ...  Context-for-Wireless predicts WiFi availability from nearby cell towers [21] . Blue-Fi correlates the presence of nearby Bluetooth devices with WiFi availability [3] .  ... 
doi:10.1109/tmc.2011.269 fatcat:qoxsrmuagzgcdcp3rlb4h35mji

Avoiding the rush hours

Justin Manweiler, Romit Roy Choudhury
2011 Proceedings of the 9th international conference on Mobile systems, applications, and services - MobiSys '11  
We design SleepWell, a system that achieves energy efficiency by evading network contention.  ...  WiFi continues to be a prime source of energy consumption in mobile devices. This paper observes that, despite a rich body of research in WiFi energy management, there is room for improvement.  ...  Context-for-Wireless predicts WiFi availability from nearby cell towers [21] . Blue-Fi correlates the presence of nearby Bluetooth devices with WiFi availability [3] .  ... 
doi:10.1145/1999995.2000020 dblp:conf/mobisys/ManweilerC11 fatcat:y3ahebnfm5fppj44ok57r5e62y

Spectrum Valuation: Implications for Sharing and Secondary Markets

Marcela Gomez, Martin B. H. Weiss, William Lehr, Giulia McHenry
2018 Social Science Research Network  
are used efficiently.  ...  Furthermore, the continued growth in wireless services and networks of all types and further advances in wireless technologies enabling more dynamic and granular spectrum sharing are transforming the supply  ...  We do not argue for including such a characterization in a valuation schema; but, it is also true that this complex context for wireless communications means that we should not assume that all transmissions  ... 
doi:10.2139/ssrn.3142182 fatcat:earkbmw7zbcireb6ify47dlhr4

Dynamic operator splitting in mobile CEP scenarios [article]

Stefan Schmidhäuser, Universität Stuttgart, Universität Stuttgart
2014
Since energy costs of such messages are rather high it is in some cases more energy efficient to evaluate some data directly on the mobile device before sending it, in order to reduce communication.  ...  In these clusters, members use the much cheaper wireless lan communication to collect data, which will then be pre-processed locally before being sent to the host via the more expensive 3G or GSM for final  ...  In order to approximate upload cost we use experimental values from 'Context-for-wireless: context-sensitive energy-efficient wireless data transfer' [RZ07] .  ... 
doi:10.18419/opus-3455 fatcat:dkvp6jwa2feg7bb7x2wobkt5wy

Utility and profit maximization in dynamic spectrum allocation

Joydeep Acharya
2009
Next we consider a downlink scenario where SPs sell spectrum to users and then transmit data. The SPs operate to maximize their profits.  ...  Demand driven, short term allocation of spectrum will be important for future wireless systems. Engineering and economics will jointly determine optimal ways to operate such systems.  ...  For wireless applications [13] considers a two SP, multiple user model where the SPs offer fixed prices and rates to the users, who decide which SP to obtain service from.  ... 
doi:10.7282/t38p60rm fatcat:5tm3jtchuneyhcewstunqltua4