Abstract
One of the most promising enablers for the secure distributed operation of the Internet of Things (IoT) systems could be based on a mathematical construct widely known as blockchain that aims to neglect the system’s centralization and scalability properties. This paper aims to map the requirements and features of both systems, highlight the main co-existence challenges and technological candidates for smoother integration of IoT and blockchain, as well as provide the standartization outlook. Moreover, an architectural approach to an integrated solution is identified based on classic literature review methodology aiming to consider the IoT versus blockchain characteristics mapping and outlining related challenges. Critical solutions to address the integration bottlenecks include moving from Proof-of-Work (PoW) to Distributed Proof-of-Stake (DPoS) consensus, adding a Fog overlay to the architecture model, and leveraging the synergies combining the benefits of blockchain and IoT technology are highlighted.
Highlights
The emerging paradigm of the Internet of Things (IoT) and various related concepts are more and more coupling together towards a shared goal of enabling the smart objects to communicate in proximity and over the Internet to collect comprehensive data and provide personalized automation services with minimal deliberate human interaction [1]
As one of the enabling solutions, the Distributed Ledger Technology (DLT) is expected to become an enabler to resolve the present issue of centralized paradigms [4]
DLT is already being recognized by the industry and research community as a disruptive technology poised to play an essential role in the management, control, and security of IoT devices [6]
Summary
The emerging paradigm of the Internet of Things (IoT) and various related concepts are more and more coupling together towards a shared goal of enabling the smart objects to communicate in proximity and over the Internet to collect comprehensive data and provide personalized automation services with minimal deliberate human interaction [1]. DLT is already being recognized by the industry and research community as a disruptive technology poised to play an essential role in the management, control, and security of IoT devices [6]. It can monitor a vast number of connected devices and provide transaction processing and coordination between those, which will assist in creating a resilient ecosystem for future devices [7].
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