Dynamic Reconfiguration of Network Protocols for Constrained Internet-of-Things Devices

Abstract

Abstract. The Internet-of-Things paradigm shifts the focus of sensor networks from simple monitoring to more dynamic networking scenarios where the nodes need to adapt to changing requirements and conditions. For this purpose many configuration options are added to the network protocols. Today, however, they can only be modified at compile-time, which seriously limits the ability to adapt the behaviour of the network. To overcome this, a solution is proposed that allows reconfiguring the entire network stack remotely using CoAP. The Contiki implementation shows that for a small memory overhead (1.2 kB) up to 57 configuration parameters can be reconfigured dynamically. The average latency for reconfiguring one parameter in a twenty node network is only three seconds. A simple case-study illustrates how the energy consumption of an application can be reduced with (50%) by dynamically fine-tuning the MAC duty-cycle.

IoT and IoE prototype for scalable infrastructures, architectures and platforms

“…Work needs to be matured for HTTP, CoAP and Web sockets. A very noticeable and referable effort by Peter Ruckebusch et al 18 for Tiny OS, RIOT and Contiki OS based embedded local and network control engine needs to address the effect of database integration used. Green aspect, energy harvesting and nano-power implementations by Farid Touati et al 19,20 and the SERENO module for air quality 21,22 needs to be assessed for mass production from scalable aspects and digital infrastructure definitions, being an excellent novel contribution.…”