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Master’s Thesis: Low-Power Clock Synchronization for the Contiki-NG OS

We are looking for a dedicated Master’s student to join us in the Connected Intelligence Unit at RISE.

The Connected Intelligence Unit is part of RISE Computer Science in Kista. The current research focus is on the Internet of Things. Among the group's key technologies are the Contiki-NG operating system, uIP stack, ContikiRPL, SICSLoWPAN, and the COOJA network simulator. The unit conducts projects together with industry and academic partners from Sweden and across the world.

Thesis Description
The Internet of Things (IoT) contains many use cases in which low-power, wireless networking over multiple hops is required. An important problem for such networks is to keep the clocks running on the network nodes synchronized with reasonable accuracy while keeping the communication overhead low. In this thesis project, the student will investigate and implement software and network protocols to keep track of calendar time in IoT networks that run the Contiki-NG operating system on the devices. The expected benefits of the project cover several scenarios including cryptographic certificate management, sensor data logging, and network attack forensics.


  • Start Time: As soon as possible
  • Scope: 30 hp
  • Location: RISE Computer Science, Kista, Stockholm

Who are you?
We expect you to have good programming skills in embedded, low-level C. Experience in working with resource-constrained IoT platforms and network protocols is beneficial as well.                

Welcome with your application!
If this sounds interesting and you would like to know more, please contact Nicolas Tsiftes, phone +46 707349247 or Saptarshi Hazra, phone +46 767519691 . Applications should include a brief personal letter, CV, and recent grades. Candidates are encouraged to send in their application as soon as possible, but at the latest by the 15th of December 2022. Suitable applicants will be interviewed as applications are received.

Our union representatives are Lazaros Tsantaridis, SACO, 010 516 62 21 and Bertil Svensson, Unionen, 010-516 53 56.

Master’s thesis, Contiki-NG, Network Protocols, Clock Synchronization, Embedded systems, Internet of Things, RISE, Stockholm

Om jobbet




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Student - examensarbete/praktik


Nicolas Tsiftes



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