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A Channel Simulator and Its Modeling Method

A channel simulation and modeling method technology, applied in wireless communication, electrical components, etc., can solve problems such as insufficient performance, complex channel simulator theory, and long design cycle

Active Publication Date: 2017-12-01
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0003] The object of the present invention is to provide a kind of channel simulator and modeling method thereof, aim at solving the channel simulator theory complexity such as existing general-purpose SCM, SCME, WINNERII and Kronecker model based on correlation matrix, design period is long or other performance is insufficient The problem

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  • A Channel Simulator and Its Modeling Method

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[0066] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0067] A modeling method for a channel simulator, such as figure 1 and 2 shown, including the following steps:

[0068] S1. Use the SCM method to deal with large-scale fading and mesoscale fading, configure the parameters related to large-scale fading and mesoscale fading according to the selected specific scene, and convert them into corresponding weight constants;

[0069] In step S1, a specific environment is selected, and the parameters related to path loss and shadow fading of each environment are set as follows:

[0070] 1) Macro cell environment: shadow fading σ SF =8dB. The path loss a...

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Abstract

The present invention provides a channel simulator and its modeling method, which uses the SCM method to process large-scale fading and mesoscale fading, and configures the parameters related to large-scale fading and mesoscale fading according to the selected specific scene, and converts them into corresponding weight constants ; The small-scale fading mathematical model is expanded according to Euler's formula, and the frequency shift of each path in the small-scale fading mathematical model after expansion is determined by combining the given maximum frequency shift and the random number generation scheme based on the Box-Muller algorithm , the sine and cosine functions in the expanded small-scale fading mathematical model are calculated by the PAR‑CORDIC algorithm; Gaussian white noise is generated based on the Box‑Muller algorithm; After the model is weighted, it is added to the Gaussian white noise to obtain a channel simulator model. Modeling in the present invention is faster and more efficient, and has advantages in resource consumption, processing time and other performances.

Description

technical field [0001] The invention belongs to the technical field of mobile wireless communication, and in particular relates to a channel simulator and a modeling method thereof. Background technique [0002] For common channel models such as SCM (Spatial Channel Modeling), SCME (Extended Spatial Channel Modeling), WINNERII, IMT-Advanced, and Kronecker (Kronecker) models based on correlation matrices, it is necessary to consider spatial radio waves Various characteristics and factors such as antenna array, such as ray cluster performance, number of subpaths, median diameter performance, ray departure angle and arrival angle, ray angle spread at the transceiver end, distance and spatial correlation between antenna elements, antenna array at the transceiver end Gain and especially the parameter settings of various complex environments of WINNERII and the development model. Although the above-mentioned complex channel model can better simulate real channels, the complexity ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/06
Inventor 王华华陈雷成陈发堂李小文王丹刘宇
Owner CHONGQING UNIV OF POSTS & TELECOMM
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