The explosive growth of 5G and the emergence of 6G have transformed wireless communication with ultra-low latency, high bandwidth, and massive device connectivity. Our research drives next-generation innovations, including 5G/6G systems for intelligent mobility and automation, and software-defined networking (SDN) for agile, programmable network control. We develop AI-driven security mechanisms for real-time threat detection and mitigation, design Open-RAN architectures with intelligent RICs, and utilize srsRAN and Open5G testbeds for prototyping and validation. We also explore blockchain-based frameworks to ensure secure and decentralized communication.