Investigates the fundamental principles for “communication and security issues in VANETs”, including the system fundamentals and algorithm fundamentals. These fundamental principles help to fully and deeply understand the communication and security issues for vehicular ad-hoc networks Shows how machine learning techniques can solve problems in vehicular ad-hoc networks Investigates in various aspects, including “authentication in VANETs”, “VANET communication against smart jamming”, “task offloading in vehicular edge computing networks”, and “network selection on heterogeneous vehicle network.”