Close-in propagation model
Model the behavior of electromagnetic radiation from a point of transmission as it
travels through urban macro cell scenarios  by using a
object. Close-in propagation models have no enforced frequency range.
CloseIn object by using the
ReferenceDistance— Free-space reference distance
1(default) | scalar
Free-space reference distance, specified as a scalar in meters.
The close-in model is valid for distances greater than or equal to the
ReferenceDistance. Path loss is
distances less than
PathLossExponent— Path loss exponent
2.9(default) | scalar
Path loss exponent, specified as a scalar.
Sigma— Standard deviation
5.7(default) | scalar
Standard deviation of the zero-mean Gaussian random variable, specified as a scalar in decibels (dB).
NumDataPoints— Number of data points
1869(default) | integer
Number of data points of the zero-mean Gaussian random variable, specified as an integer.
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)
 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 Technology 65, no. 5 (May 2016): 2843–60. https://doi.org/10.1109/TVT.2016.2543139.