A Secure and Energy Efficient Cross-Layer Network Architecture for Internet Of Things

Secure and energy-efficient network architectures are required due to the quick spread of 1 the Internet of Things (IoT) devices in vital industries including healthcare, smart cities, and indus- 2 trial automation. In this paper, we propose a secure and energy-efficient cross-layer architecture for 3 Internet of Things. The proposed architecture incorporates security features and energy-saving tech- 4 niques across various open system interconnections protocol layers. The better security and energy 5 efficiency are achieved using lightweight cryptographic protocols (Speck and Present Cipher) and 6 adaptive communication strategies. The system performance is evaluation by extensive simulation 7 experiments using Cooja (Contiki operating systems). Results obtain show a 95% attack mitigation 8 effectiveness, a 30% reduction in energy usage, and a 95% packet delivery ratio are achieved. In a 9 20-node network scenario, Speck uses 5.2% less radio power than advanced encryption standard, 10 making it the best trade-off among the investigated encryption techniques. The scalability across 11 various IoT contexts is ensured through hybrid assessment approach combining hardware testbeds 12 and simulation for system validation. Our research findings highlight the opportunities for advancing 13 IoT systems toward secure and energy-efficient smart ecosystems.