Modeling method for multiple-input-multiple-output single-loop model and simulation platform thereof

Abstract

The invention relates to a modeling method for a multiple-input-multiple-output single-loop model. The modeling method comprises the steps of simulating a vehicle-mounted communication scene; obtaining a narrowband MT * MRMIMO channel model according to the scene; performing scattering cluster-based model expansion on the classic single-loop model; giving a 3D space-time CCF of the multi-cluster MIMO channel model by utilizing a channel gain function of the improved single-loop model; acquiring a time autocorrelation function by setting the distance between element units of a transmitter and areceiver antenna to be zero; acquiring a space cross-correlation function by setting transient time to be zero; and acquiring a single-loop model through the four steps, and carrying out MATLAB simulation through the model. The invention further discloses a simulation platform for the modeling method of the multiple-input-multiple-output single-loop model. According to the invention, the simulation platform of the multiple-input-multiple-output single-loop model is built and can be actually used as scatterer distribution around a receiver car, and the real situation is simulated more closelythan that of a classic single-loop model.

Description

technical field [0001] The invention relates to the technical field of signal propagation models when a mobile car passes a base station, in particular to a modeling method for a multi-input multi-output single-loop model and a simulation platform thereof. Background technique [0002] Information communication between vehicles improves the safety and efficiency of the user's driving process. At present, with the gradual development of intelligent transportation system and vehicle ad hoc network research, V2V (vehicle-to-vehicle) and V2R (vehicle-to-road) channel modeling research has received high attention. This trend has prompted relevant departments to establish a unified standard for vehicle communication - dedicated short-range communication technology (DSRC). The research on the transmission characteristics of wireless signals at the transceiver end is of great significance for the effective creation and analysis of vehicle communication systems. As one of the power...

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Problems solved by technology

[0004] However, in the research of the above literature, it is usually assumed that the scatterers are distributed uniformly and infinitely on regular figures, such as single ring, double ring, ellipse, double ellipse and other geometric shapes.

This is originally an assumption made on the theoretical scene, which cannot be sufficiently consistent with the actual environment.

In today's methods, the determination of the results of wireless channel transmission loss is mainly based on the analysis of actual data obtained through statistics, and there is no model that can completely simulate the actual scene.

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