Exploiting (Commercial) Hot-Spots for Device-to-Device Communication

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• Jörg Ott (Aalto University)
• Friday 15 November 2013, 11:00-12:00
• FW26, Computer Laboratory, William Gates Builiding.

If you have a question about this talk, please contact Eiko Yoneki.

Opportunistic networking between mobile devices relies on the capabilities of those devices to establish ad-hoc communication among each other. While the two dominant wireless interface technologies, IEEE 802.11 wireless LAN and Bluetooth, offer such capabilities in theory, limitations of the protocol specification, chipsets, and operating systems in mobile devices render those features largely unusable in practice. One proposed remedy has been making some mobile devices act as WLAN access points. We complement this idea by instrumenting commercial WLAN A Ps that do not employ L2 security to serve as link layer packet relays without requiring the mobile nodes to authenticate with the WLAN hot-spot. We present different mechanisms for peer discovery, evaluate their feasibility for a set of commercial hot-spots, and discuss operational considerations for fair use.

This talk is part of the Computer Laboratory Systems Research Group Seminar series.

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