Lightweight Modified Consensus Approach in IoT Blockchain

Abstract

Nowadays, the decentralized and distributed nature of blockchain in IoT platforms is gaining lot of acceptance. PoW is the most commonly used consensus approach in blockchain. But energy requirements of consensus approaches is very high. Due to which the implementation of blockchain in IoT becomes very difficult. To solve the problem of resource constrained devices, we proposed modified consensus approach for non-cooperative IoT blockchain platform. Our scheme also works like PoW for specific period of time and checks for the count of leading zeroes given by block manager. IoT network is divided into regions and each region contains regional head for interaction with the block manager. Usecase of e-healthcare is also provided to explain the scenario of our scheme. Energy consumption, consensus time, and latency are the performance parameters taken into consideration.