Evaluating Bluetooth as a Link Layer Technology for Energy-Constrained Ad hoc Networks

Master Thesis, Bachelor Thesis


Analysis: 2
Empiricism: 9
Implementation: 7
Literature Research: 3


Bluetooth allows direct device-to-device communication, for instance, between smartphones. Especially BT Low Energy was conceived to be very energy-efficient. This is why vendors allow Bluetooth background operation which is crucial for Disruption-Tolerant Networks (DTNs) as smartphones act as data mules and therefore have to accept new “bundles” as they pass other nodes without user interaction.

In this thesis, you will first explore whether Bluetooth (Low Energy) is a suitable candidate link layer for ad hoc and disruption-tolerant networks. This includes energy efficiency, transmission speed, disruption tolerance, and cross-vendor compatibility.

Finally, you will implement a Bluetooth convergence layer in IBR-DTN [1] to enable DTN communication between (Android) smartphones without infrastructure.

  • BT/BT-LE performance/practicality analysis
    • Energy consumption (scanning, data transmission, …)
    • Transmission speed (1-1, 1-n, …, depending on distance, …)
    • Disruption tolerance (how long does it take for BT to realize that a connection is broken?)
    • Cross-vendor (Android, iOS, …)
  • Implement a BT convergence layer for IBR-DTN [1]
    • Neighbor discovery (energy efficient, …)
    • Data transmission (based on TCPCL?)


[1] https://github.com/ibrdtn


Research Areas: Sichere Mobile Netze



Prof. Dr.-Ing. Matthias Hollick

Technische Universität Darmstadt
Department of Computer Science
Secure Mobile Networking Lab 

Mornewegstr. 32 (S4/14)
64293 Darmstadt, Germany

Phone: +49 6151 16-25472
Fax: +49 6151 16-25471


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