Reliable and Secure Data Transmission in Smart Healthcare Application of Internet of Things

The emergence of the Internet of Things (IoT) into smart city applications leads to the evolution of the Healthcare 4.0 standard for smart healthcare systems. The core part of an IoT-enabled healthcare system is Wireless Sensor Network (WSN). The WSN mainly suffers from challenges such as energy consumption, reliability, and sensitive medical data security. We proposed a novel routing solution to address the concerns related to reliability and security with minimum energy consumption for IoT-enabled WSNs. This paper presents the preliminary model of The Cross-Layer and Cryptography-based Secure Routing (CLCSR) and its evaluations at a limited scale. The CLCSR introduce for achieving cross-layer attack detection, secure medical data transmission, and privacy preservations. The CLCSR initially divides the network into clusters and then performs cross-layer probability computation for optimal CH selection and attack detection. This phase of CLCSR ensures the detection of unreliable nodes in the network. The second phase of the CLCSR protocol is privacy preservation and data security using lightweight cryptography for authentication and authorization. The Elliptic Curve Cryptography (ECC)-based hybrid encryption and digital signature verification routing functions are introduced for robust security and privacy preservations. A simulation result proves that the CLCSR protocol improves the performances compare to state-of-art protocols. The throughput increased by 9.23 %, Packet Delivery Ratio (PDR) increased by 4.08 %, overhead decreased by 16.85 %, and energy consumption reduced by 22.54 %.