Optimized Energy-Efficient Hybrid LW-AES and LW-ECC Security Framework for VLC and RF Networks

In hybrid Visible Light Communication (VLC) and Radio Frequency (RF) networks, optimizing energy efficiency and ensuring secure resource allocation are key challenges. This paper addresses these issues by introducing a Hybrid Lightweight Advanced Encryption Standard (LW-AES) and Lightweight Elliptic Curve Cryptography (LW-ECC) secure resource algorithm. This innovative approach aims to enhance the sustainability and reliability of communication systems across diverse environments. Our analysis reveals substantial performance improvements compared to existing methods, including higher throughput (100 Mbps) and packet delivery ratio (98%), with reduced latency (10 ms) and extended network lifetime (500 hours). The algorithm also features lower memory usage (100 KB) and enhanced energy efficiency, showing a 20% decrease in energy consumption (800 mW) and an energy efficiency of 0.8 mJ/bit. Security is bolstered with a 25% reduction in interception probability (3.75%) and a 50% increase in secure communication range (150 meters). Moreover, the approach aligns with green communication objectives, reducing CO2 emissions by 20% (800 kg/year) and achieving an energy efficiency metric of 10 nJ/bit. Communication safety is markedly improved, with an 80% decrease in outage probability (1%) and a 40% boost in reliability (84%). By integrating LW-AES and LW-ECC in a hybrid configuration, this research offers a robust framework for advancing sustainable and resilient hybrid VLC-RF networks, effectively meeting the evolving needs of modern communication systems.