This book presents an enhanced selection of papers from the 7th International Conference on Communication and Network Technology (ICCNT 2023). It highlights recent research and technological advances in embedded systems, communications, and signal processing, along with emerging topics in these fields. Key areas covered include: Embedded Systems & Electronics: SoC, MPSoC, NoC, reconfigurable computing, system design, and optimization. Advanced Communications: Circuits, optical fiber applications, RF and wireless communications. Image & Signal Processing: Video processing, compression, cryptology, watermarking, real-time systems. Sensors & Instrumentation: Data acquisition, biomedical signal processing, industrial sensors. Computer Engineering & Networks: Cloud computing, cybersecurity, internet technology, and computing networks. The book serves as a resource for researchers and professionals in these cutting-edge technological domains.