wideband fading

Wideband fading.

Channel under wideband fading is called a frequency selective or dispersive channel.

Under some assumptions,

• \(c(\tau, t)\) is a 2D complex gaussian process, characterized by mean, autocorrelation, and cross-correlation between I and Q components
• Multipath phases are uniform and independent, so mean is 0 and x-cor is 0.
• WSS autocorrelation function defines the channel.

• Uncorrelated scattering

  One model that describes this process is the tapped delay line model.