Small-scale Fading Models

Null Fading Model

This fading model specifies that no fading is to be used.

Attributes

This model has no attributes.

Example

        <FadingModel type="Null"/>

Ricean Fading Model

This model implements Ricean fading (and Rayleigh fading as a subset.) The speed of fading is determined by the relative speed between the transmitter and the receiver in the emulated world model. A "minimum speed" may be specified so that even if the relative speed between the transmitter and receiver is zero, fading will still occur. Conceptually minSpeed accounts for the movement of objects in the environment.

Attributes

• k - The Ricean k factor in dB.
• minSpeed (optional) - Minimum speed of fading. Normally the speeed of fading is determined by the relative speed between the transmitter and the receiver. If this relative speed is below minSpeed, minSpeed will be used. Default is 0 i.e. disabled.

Example

        <FadingModel type="Ricean">
			<k>7.5</k>
			<minSpeed>2.5</minSpeed>
        </FadingModel>