Trusted Wireless Monitoring based on Blockchain over NB-IoT Connectivity
This addresses data integrity for stakeholders in IoT monitoring systems, but it is incremental as it combines existing DLT and NB-IoT technologies.
The paper tackles the problem of securing IoT data against tampering by integrating Distributed Ledger Technology (DLT) with NB-IoT connectivity, implementing a platform and evaluating performance tradeoffs in data authorization and real-time monitoring use cases.
The data collected from Internet of Things (IoT) devices on various emissions or pollution, can have a significant economic value for the stakeholders. This makes it prone to abuse or tampering and brings forward the need to integrate IoT with a Distributed Ledger Technology (DLT) to collect, store, and protect the IoT data. However, DLT brings an additional overhead to the frugal IoT connectivity and symmetrizes the IoT traffic, thus changing the usual assumption that IoT is uplink-oriented. We have implemented a platform that integrates DLTs with a monitoring system based on narrowband IoT (NB-IoT). We evaluate the performance and discuss the tradeoffs in two use cases: data authorization and real-time monitoring.