UNIVERSITY OF JYVÄSKYLÄ Mobile Encounter Networks and Their Applications 1 st IEEE International...
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UNIVERSITY OF JYVÄSKYLÄ Mobile Encounter Networks and Their Applications 1 st IEEE International Peer-to-Peer for Handheld Devices Workshop IEEE CCNC, Las Vegas, 12 th of January 2007 Niko Kotilainen, research student, [email protected] With co-authors Oleksiy Volovikov, Timo Juonoja, Matthieu Weber, Mikko Vapa and Jarkko Vuori Department of Mathematical Information Technology University of Jyväskylä, Finland
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Transcript of UNIVERSITY OF JYVÄSKYLÄ Mobile Encounter Networks and Their Applications 1 st IEEE International...
UNIVERSITY OF JYVÄSKYLÄ
Mobile Encounter Networks and Their Applications
1st IEEE International Peer-to-Peer for Handheld Devices WorkshopIEEE CCNC, Las Vegas, 12th of January 2007
Niko Kotilainen, research student, [email protected] co-authors Oleksiy Volovikov, Timo Juonoja, Matthieu
Weber, Mikko Vapa and Jarkko Vuori
Department of Mathematical Information TechnologyUniversity of Jyväskylä, Finland
www.mit.jyu.fi/cheesefactory
UNIVERSITY OF JYVÄSKYLÄ
Mobile Encounter Networks
• Very sparsely connected P2P networks• No multi-hop capabilities• Emerge when mobile devices come across each
other and communicate• Single information exchanges result in a diffusion of
information• Users physically carry information to other devices
UNIVERSITY OF JYVÄSKYLÄ
Information Diffusion
R1
R2
R1
R2
R1 R2
R2 R1
R1 R2
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Advantages and Disadvantages
+ Scalable+ Robust+ No need for infrastructure+ Free communication medium- No real-time querying because of the ”push” type of
the network- Power consumption even when not actively using the
applications
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BlueCheese
• Prototype mobile encounter network middleware
• Provides applications a simple API for exchanging information with other devices running the same app
• Programmed in C++ and runs on Symbian S60 devices
App 2Application 1
BlueCheese
Bluetooth(RFCOMM, L2CAP, SDP)
Other BlueCheeseDevices
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BlueCheese Measurement Results (1/3)
Bluetooth device discovery time
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BlueCheese Measurement Results (2/3)
Bluetooth connection establishment time
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BlueCheese Measurement Results (3/3)
Power consumption ratios
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Applications: Gasoline Price Comparison System
• Collects gasoline price information when a user fuels his car
• Price data is diffused to the network
• Enables users to compare the prices from several gas stations nearby
• Prototype built on top of BlueCheese
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Other Application Ideas
• Other price comparison services• Joke Service• Event Service• Newspaper Service
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Conclusions and Future Work
• Mobile Encounter Networks…– …are not suitable for all applications– …provide clear benefits in some
applications• Future work idea: Mobility Assisted Routing
UNIVERSITY OF JYVÄSKYLÄ
