Blockchain in WSNs, VANets, IoTs and Healthcare: A Survey

Abstract

Recently, blockchain technology has become one of the most groundbreaking technology. Blockchain was introduced to support digital transactions and, provide access to the distributed ledger in a secure and trusted way. Blockchain with smart contracts has the ability to provide secure transaction among users without the need of trusted third party or intermediary. In this paper, we presented a comprehensive survey on blockchain applications for Wireless Sensor Networks (WSNs), Vehicular Adhoc Networks (VANets), Internet of Things (IoTs) and healthcare. We review the problems addressed, their proposed solutions and, experimental evaluation security analysis. We also spot and review future challenges or open research issues of utilizing blockchain for WSNs, VANETs, IoTs, and healthcare.