This book includes the proceedings of the 5th International Conference on Emerging Technology Trends in Electronics, Communication, and Networking (ET2ECN 2026). The book highlights recent advances and emerging directions in electronics, communication systems, and networking technologies. Featuring contributions from researchers and industry professionals, the book covers topics such as wireless systems, 5G and beyond, V2X communication, AI/ML-based signal processing, IoT and embedded systems, VLSI design, RF and microwave engineering, and modern signal processing techniques. This book offers both theoretical insights and practical perspectives on the rapidly evolving landscape of next-generation electronics and communication technologies, serving as a timely reference for researchers, students, and engineers.