Rayleigh fading channel as a scalar quantity [closed]

1. What are the assumptions for Rayleigh fading?
2. What is meant by Rayleigh fading channel?
3. What causes Rayleigh fading?
4. How do you overcome Rayleigh fading?

What are the assumptions for Rayleigh fading?

Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also called a communication channel) will vary randomly, or fade, according to a Rayleigh distribution — the radial component of the sum of two uncorrelated Gaussian random variables.

What is meant by Rayleigh fading channel?

Rayleigh and Rician fading channels are useful models of real-world phenomena in wireless communications. These phenomena include multipath scattering effects, time dispersion, and Doppler shifts that arise from relative motion between the transmitter and receiver.

What causes Rayleigh fading?

Rayleigh fading is caused by multipath reception. The mobile antenna receives a large number, say N, reflected and scattered waves. Because of wave cancellation effects, the instantaneous received power seen by a moving antenna becomes a random variable, dependent on the location of the antenna.

How do you overcome Rayleigh fading?

To overcome the effects of Rayleigh fading in a mobile environment, sequential tone signalling may be used (DTI, 1981b). Here a unique single tone corresponding to each digit is sequentially transmitted, together with a unique 'repeat' tone in place of the digit tone in the case of repeated digits.