# Step 14. Introducing antenna gain¶

## Goals¶

In the previous steps, we have assumed an isotropic antenna for the radio, with a gain of 1 (0dB). Here we want to enhance the simulation by taking antenna gain into account.

## The model¶

For simplicity, we configure the hosts to use ConstantGainAntenna. ConstantGainAntenna is an abstraction: it models an antenna that has a constant gain in the directions relevant for the simulation, regardless of how such an antenna could be implemented in real life. For example, if all nodes of a simulated wireless network are on the same plane, ConstantGainAntenna could correspond to an omnidirectional antenna such as a vertical dipole. (INET contains support for directional antennas as well.)

[Config Wireless14]
description = Introducing antenna gain
extends = Wireless13