V2V communication heterogeneous spectrum allocation method based on interference perception multiple graphs

Abstract

The invention discloses a V2V communication heterogeneous spectrum allocation method based on interference sensing multiple graphs, and belongs to the field of wireless communication. The method comprises the following steps: firstly, constructing an Internet of Vehicles V2V communication network model integrating a cellular frequency band and a millimeter wave frequency band, and establishing a heterogeneous spectrum signal to interference plus noise ratio SINR of a V2V receiving user and an SINR of a cellular user; calculating the unit bandwidth communication rate of the V2V link by using the SINR of the V2V receiving user; taking maximization of the minimum unit bandwidth communication rate of the V2V link as an optimization target, and taking time delay and reliability constraints of the V2V link and a requirement that the SINR of the CUE is higher than the minimum SINR as optimization conditions to construct an Internet of Vehicles heterogeneous spectrum sharing optimization model; and constructing an interference sensing multi-graph model to optimize the V2V heterogeneous spectrum resource allocation optimization model to obtain a resource allocation scheme of each V2V communication link. According to the invention, the system communication rate is improved, the delay and reliability requirements of V2V communication are ensured, and the communication quality of cellularusers is ensured.

Description

technical field [0001] The invention belongs to the field of wireless communication, and relates to a vehicle networking communication network system integrating cellular frequency bands and millimeter wave frequency terminals, in particular to a V2V communication heterogeneous spectrum allocation method based on interference-aware multi-map. Background technique [0002] As driving becomes more and more automated and vehicles are equipped with more and more sensors, the communication between vehicles requires higher and higher transmission rates. According to the survey, the number of existing vehicle sensors is about 100 per vehicle, and it is expected to double by 2020, which makes the raw sensor data exchanged between vehicles as high as 1TB per hour, but the existing communication technology is not enough To handle the transmission rate of TB / h. At the same time, vehicle safety services rely heavily on the collection and sharing of real-time traffic information. For ex...

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Problems solved by technology

For the heterogeneous spectrum sharing technology, there are some works worth learning in the cellular network, mainly including the research on the device-to-device (D2D) heterogeneous spectrum sharing technology based on the game theory method, but these studies have not considered To the complex communication environment generated by vehicle movement, it is not suitable for V2V communication scenarios

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