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A D2D Spectrum Efficient Sharing Method for Networked Unmanned Driving Safety Communication

An unmanned, safe communication technology, applied in wireless communication, combustion engine, power management, etc.

Active Publication Date: 2021-05-04
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, most of the existing work considering D2D communication and physical layer security assumes a quasi-static cellular network, and most of them focus on protecting the communication security of cellular users.

Method used

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  • A D2D Spectrum Efficient Sharing Method for Networked Unmanned Driving Safety Communication
  • A D2D Spectrum Efficient Sharing Method for Networked Unmanned Driving Safety Communication
  • A D2D Spectrum Efficient Sharing Method for Networked Unmanned Driving Safety Communication

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Embodiment

[0073] We will simulate and verify the proposed D2D spectrum efficient sharing method for unmanned driving safety communication in the network. In our simulation, the coverage radius of the small cell base station is 500 meters. A 6-lane road is located 100 meters away from the small cell base station. The setting of roads is based on the free road case in 3GPP TR 36.885. The maximum transmission power of both cellular users and vehicle D2D users is 23dBm, the minimum achievable data rate required by the default cellular service quality is 10bps / Hz, and the minimum confidentiality rate threshold of vehicle D2D is 1bps / Hz.

[0074] In addition, we compare the proposed algorithm with three control algorithms and a greedy algorithm. Compared with Algorithm 1, the spectrum resource block sharing strategy is optimized separately, and the transmit power of cellular and vehicle users is set to a fixed value; compared with Algorithm 2, the power control scheme is optimized separatel...

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Abstract

The present invention proposes a D2D spectrum efficient sharing method for network-connected unmanned driving safety communication. Since cellular users and vehicle D2D users share spectrum resources, they will interfere with each other, but cellular users can act as a friendly interferer to improve the security transmission performance of vehicle D2D communication. Based on this situation, the present invention firstly ensures both the cellular service quality and the vehicular D2D communication confidentiality by jointly controlling the transmit power of the cellular user and the vehicle D2D user. Then, based on the Hungarian algorithm, the globally optimal spectrum resource block matching scheme is obtained, thereby improving the spectrum efficiency of the networked unmanned vehicle communication system. The present invention minimizes co-frequency interference and improves the safety of network-connected unmanned vehicle communication through power control, and can adapt to a highly dynamic vehicle communication environment.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a D2D frequency spectrum efficient sharing method for unmanned driving safety communication in the network. Background technique [0002] Due to the great potential of connected unmanned vehicles in improving traffic safety and reducing energy consumption, the development of connected unmanned driving technology has attracted a lot of attention from academia and industry. In the unmanned driving technology of the Internet, real-time transmission of data such as position, speed and acceleration, interactive control information with the cloud, and multimedia infotainment services require a large amount of data transmission. Therefore, compared with traditional vehicles, the demand for higher communication capacity of networked unmanned vehicles is more urgent. In addition, the issue of communication security is also a key issue in the network of connected un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/24H04W52/26H04W72/08H04W72/04
CPCH04W52/244H04W52/265H04W52/267H04W72/044H04W72/543H04W72/541Y02T10/40
Inventor 周海波彭学森钱博余凯
Owner NANJING UNIV
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