Abstract
Several real-world applications, such as smart transportation and smart cities, are being industrialised by the Internet of Things (IoT). The Internet of Things (IoT) presents a number of difficulties that can be addressed with blockchain technology. In this review paper, they look at how blockchain technology can be used in conjunction with the Internet of Things (IoT). Block chain-based intelligent communication systems for IoT will be examined in this study. First, we introduce IoT and analyse some of its drawbacks. After that, we give a brief introduction to blockchain. Each block in the blockchain is linked to those that came before it, creating a decentralised ledger. Cryptographic hash code, block contents, and the previous block’s hash code are all contained in each block. In the Internet of Things (IoT), BC serves as a mechanism for securely storing and transmitting data between IoT nodes. BC is a safe and open technology that anyone can utilise. Secure communication between IoT nodes is essential for the IoT. The BC for IoT could be able to assist in enhancing the safety of communication. From 2016 to 2022, this article undertakes a comprehensive assessment of 51 reference papers in the subject of blockchain.
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