Dynamic MIMO channel modeling and parameter calculating method for internet of vehicles

A channel modeling and parameter calculation technology, applied in vehicle-to-vehicle communication, vehicle wireless communication services, vehicle components, etc., can solve problems such as acceleration or deceleration, output Doppler frequency and phase mismatch, and few V2V channel models , to achieve the effect of ensuring continuity

Active Publication Date: 2018-11-06
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

At present, most V2V channel models assume that the mobile terminal moves in a specific direction at a constant speed. However, in the actual traffic environment, due to the influence of surrounding vehicles and facilities and traffic lights, the vehicle will experience acceleration or deceleration during the movement process. , and on turns and uneven roads, the vehicle will change its direction of motion
Changes in t

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  • Dynamic MIMO channel modeling and parameter calculating method for internet of vehicles
  • Dynamic MIMO channel modeling and parameter calculating method for internet of vehicles
  • Dynamic MIMO channel modeling and parameter calculating method for internet of vehicles

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Embodiment Construction

[0051] The present invention will be further described below in conjunction with the accompanying drawings.

[0052] The present invention is a dynamic MIMO channel modeling and parameter calculation method oriented to the Internet of Vehicles. The specific steps are as follows:

[0053] The first step: if figure 1 As shown, for the V2V dynamic MIMO communication scenario under complex traffic conditions, the present invention models the MIMO channel between the sending and receiving vehicles as

[0054]

[0055] Among them, S represents the number of antennas at the sending end, U represents the number of antennas at the receiving end, and the channel h between the sth antenna at the sending end and the uth antenna at the receiving end u,s (t, τ) can be expressed as the superposition of multiple propagation path signals of different power and time delay, and the present invention models the normalized channel fading coefficient of the nth path as

[0056]

[0057] Among...

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Abstract

The invention discloses a dynamic MIMO channel modeling and parameter calculating method for the internet of vehicles, the invention provides a V2V dynamic MIMO channel modeling method, and various factors influencing propagation of radio waves, such as the movement of the transceiving vehicle, the movement of the scatterers, the movement speed, the track changes are comprehensively considered; the V2V dynamic MIMO channel modeling method and the parameter calculation method provided support time-varying channel model parameters, are suitable for any three-dimensional antenna array and the propagation scene of any vehicle moving track, and the continuity of the output channel fading phase can be ensured.

Description

Technical field: [0001] The invention relates to modeling and simulation of a mobile communication channel of the Internet of Vehicles, belonging to the field of wireless communication, in particular to a dynamic MIMO channel modeling method and a channel parameter calculation method considering random changes in vehicle speeds under complex traffic conditions. Background technique: [0002] With the rapid increase of road traffic density, road safety and traffic flow management issues need to be solved urgently. Vehicle-to-vehicle (V2V) communication system can effectively improve the safety and convenience of road traffic, and has become one of the key transmission technologies concerned by the fifth generation of mobile communication. Multiple Input Multiple Output (MIMO) technology can realize high-speed data transmission without increasing bandwidth and transmission power, and significantly improve the capacity and reliability of communication systems. Therefore, const...

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Application Information

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IPC IPC(8): H04B17/391H04B7/0413H04W4/46H04L12/24
CPCH04B7/0413H04B17/3912H04L41/145H04W4/46
Inventor 朱秋明杨颖江凯丽陈小敏仲伟志郎杰毛开
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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