Recent research in the Internet of Vehicles (IoV) emphasizes the integration of intelligent communication, sensing, and computing technologies to enable smart, connected, and autonomous transportation systems. Studies focus on leveraging 5G and 6G networks, edge and fog computing, and artificial intelligence to enhance vehicle-to-everything (V2X) communication, real-time decision-making, and traffic efficiency. Researchers are also addressing key challenges in security, privacy, trust management, and interoperability across heterogeneous networks. Emerging trends include blockchain-based authentication for secure data sharing, federated learning for decentralized intelligence, and UAV-assisted connectivity for extending network coverage. Overall, IoV research aims to create a reliable, scalable, and intelligent vehicular ecosystem that supports safer and more efficient transportation in future smart cities.