A Trust Evaluation Method Based on Environmental Assessment in the Perception Layer of Internet of Vehicles

With the rapid development of Internet of things and intelligent transportation technology, the Internet of vehicles has become an important part of intelligent urban traffic. Similar to other heterogeneous wireless networks, there are many cross-network access and cross-network mobility interactions between nodes in urban vehicle network, which makes the trust relationship between nodes full of uncertainty. It is an important research content of trust management to evaluate the reliability of vehicle networking nodes objectively and effectively. This paper mainly studies trust evaluation in heterogeneous wireless networks. We proposed a trust evaluation model considering trust factors around nodes. According to the simulation analysis, compared with the existing trust evaluation model, this model can effectively improve the security of the whole network while ensuring the data transmission rate.