Performance Evaluation of Distributed Ledger Technologies for IoT data registry : A Comparative Study

Abstract

Internet-of-Things (IoT) technologies have gained prevalence in various areas including Smart Vehicles, Smart Buildings, and Smart Health. Especially on these domains, the use of IoT involves certain challenges around security, privacy and trust, which can be characterized as sensitive issues. Blockchain technologies have emerged as the potential solution to address these issues. However, Blockchain can be inefficient in terms of both performance and cost due to high bandwidth overhead and delays. In this paper, we have examined four different popular Blockchain platforms (Hyperledger Fabric, Hyperledger Burrow, Hyperledger Sawtooth, and BigchainDB) to identify what are the overheads around the use of Blockchain and to study whether there is a single optimal solution with respect to time and computation overheads, or if there are trade-offs between the four platforms for IoT applications.