Java Implementation of Recommendation ITU-R P.1411 (Site-General Prediction Methods)

This code repository contains a Java software implementation of site-general prediction methods in Recommendation ITU-R P.1411-11 §4.1.1, §4.2.1 and §4.3.1 with propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz.

This version of the code is also implemented in SEAMCAT.

The following table describes the structure of the folder ./src/ containing the Java implementation of Recommendation ITU-R P.1411.

File/Folder	Description
main/P1411.java	Java class implementing Recommendation ITU-R P.1411-11
test/P1411Test.java	Java class implementing validation tests

§4.1.1: Site-general model where both the Tx and Rx stations are located below-rooftop regardless of their antenna heights

L = pl_1411_belowroof(f, d, env, var)

Required input arguments of function pl_1411_belowroof

Variable	Type	Units	Limits	Description
f	double	GHz	See Note	Frequency
d	double	m	See Note	3D direct distance between Tx and Rx stations
env	ClutterEnvironment		URBAN, HIGH_RISE_URBAN, SUBURBAN, RESIDENTIAL	Envirnonment type
var	boolean			Set to true if variations are to be computed in Monte-Carlo analysis

Note

URBAN: LoS, Urban (high-rise, low-rise)/Suburban
f = 0.8 - 82 GHz, d = 5 - 660 m
HIGH_RISE_URBAN: NLoS, Urban high-rise
f = 0.8 - 82 GHz, d = 30 - 715 m
SUBURBAN: NLoS, Urban low-rise/Suburban
f = 10 - 73 GHz, d = 30 - 250 m
RESIDENTIAL: NLoS, Residential
f = 0.8 - 73 GHz, d = 30 - 170 m

§4.2.1: Site-general model where one of the stations is located below-rooftop, and the other above-rooftop regardless of their antenna heights

L = pl_1411_aboveroof(f, d, env, var)

Required input arguments of function pl_1411_aboveroof

Variable	Type	Units	Limits	Description
f	double	GHz	See Note	Frequency
d	double	m	See Note	3D direct distance between Tx and Rx stations
env	ClutterEnvironment		URBAN, HIGH_RISE_URBAN	Envirnonment type
var	boolean			Set to true if variations are to be computed in Monte-Carlo analysis

Note

URBAN: LoS, Urban high-rise, Urban low-rise/Suburban
f = 2.2 - 73GHz, d = 55 - 1200 m
HIGH_RISE_URBAN: NLoS, Urban high-rise
f = 2.2 - 66.5 GHz, d = 260 - 1200 m

§4.3.1: Site-general model for terminals of low hight from below roof-top to near street level (1.9 m < h < 3 m).

L = pl_1411_lowheight(f, d, env, p)

Required input arguments of function pl_1411_lowheight

Variable	Type	Units	Limits	Description
f	double	GHz	0.3 ≤ f≤ 3	Frequency
d	double	m	0 < d≤ 3000	3D direct distance between Tx and Rx stations
env	ClutterEnvironment		SUBURBAN, URBAN, DENSE_URBAN	Envirnonment type
p	double	%	0 < p< 100	Location percentage

Output

Variable	Type	Units	Description
L	double	dB	Basic transmission loss

References

• Recommendation ITU-R P.1411

• SEAMCAT - Spectrum Engineering Advanced Monte Carlo Analysis Tool