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CloseIn

Close-in propagation model

Description

Model the behavior of electromagnetic radiation from a point of transmission as it travels through urban macro cell scenarios[1]by using aCloseInobject. Close-in propagation models have no enforced frequency range.

Creation

Create aCloseInobject by using thepropagationModelfunction.

Properties

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空间参考distance, specified as a scalar in meters.

Note

The close-in model is valid for distances greater than or equal to theReferenceDistance. Path loss is0for distances less thanReferenceDistance.

Data Types:double

Path loss exponent, specified as a scalar.

Data Types:double

Standard deviation of the zero-mean Gaussian random variable, specified as a scalar in decibels (dB).

Data Types:double

Number of data points of the zero-mean Gaussian random variable, specified as an integer.

Data Types:double

Object Functions

pathloss Path loss of radio wave propagation
range Range of radio wave propagation
add 增加传播模型

Examples

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Display the coverage area for a transmitter using the close-in propagation model.

pm = propagationModel("close-in"); tx = txsite("Name","Apple Hill","Latitude",42.3001,"Longitude",-71.3604); coverage(tx,pm)

References

[1]Sun, Shu, Theodore S. Rappaport, Timothy A. Thomas, Amitava Ghosh, Huan C. Nguyen, Istvan Z. Kovacs, Ignacio Rodriguez, Ozge Koymen, and Andrzej Partyka. “Investigation of Prediction Accuracy, Sensitivity, and Parameter Stability of Large-Scale Propagation Path Loss Models for 5G Wireless Communications.”IEEE Transactions on Vehicular Technology65, no. 5 (May 2016): 2843–60. https://doi.org/10.1109/TVT.2016.2543139.

Version History

Introduced in R2017b