Resource allocation method for improving wireless transmission safety performance of Internet of Vehicles

Abstract

The invention relates to a resource allocation method for improving the wireless transmission safety performance of the Internet of Vehicles. The method comprises the steps of obtaining a first communication parameter of each first communication link, a second communication parameter of each second communication link, a first eavesdropping parameter of a first eavesdropping link and a second eavesdropping parameter of a second eavesdropping link in the Internet of Vehicles, respectively calculating channel transmission capacities of each first communication link and each second communication link on each resource block according to the first communication parameter and the second communication parameter; respectively calculating a first eavesdropping channel capacity and a second eavesdropping channel capacity according to the first eavesdropping parameter and the second eavesdropping parameter, and determining the total confidentiality capacity of the system through the transmission capacity of each channel and the capacity of each eavesdropping channel, establishing a resource allocation and power control combined model based on the target of the maximum total confidentiality capacity of the system, allocating resource blocks, and improving the safety performance of the system in a manner of improving the confidentiality capacity of the system.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a resource allocation method for improving the safety performance of wireless transmission in the Internet of Vehicles. Background technique [0002] With the gradual increase in the requirements for data transmission security in wireless networks, information security has become a key issue. Different from the application of traditional cryptography in the upper layer of the network architecture, the physical layer security technology mainly studies how to use the characteristics of the physical layer channel in the wireless network to achieve absolutely secure communication, that is, it can be used without high-level encryption or if the key is stolen by an eavesdropper. Under the circumstances, effective confidential communication can still be provided. [0003] The State Grid Corporation of China put forward the vision of "Smart Internet of Vehicles". ...

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Problems solved by technology

[0004] Based on this, it is necessary to provide a resource allocation method to improve the security performance of the wireless transmission of the Internet of Vehicles for the problem that the security performance of the Internet of Vehicles is not high enough based on the physical layer.

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