Howtosignalprocessing
- What is Rayleigh flat fading channel?
- Is Rayleigh fading is a flat fading?
- What is flat fading channel?
- How do you overcome Rayleigh fading?
What is Rayleigh flat fading channel?
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.
Is Rayleigh fading is a flat fading?
Rayleigh channel
This is also an FIR model. h_1 = 1/sqrt(2)*[randn(1,N) + j*randn(1,N)] ; % Rayleigh channel creates the coefficients h of length N representing the channel, where N is the number of data samples. This is a flat fading Rayleigh channel because the number of taps = 1.
What is flat fading channel?
In flat fading, the coherence bandwidth of the channel is larger than the bandwidth of the signal. Therefore, all frequency components of the signal will experience the same magnitude of fading. In frequency-selective fading, the coherence bandwidth of the channel is smaller than the bandwidth of the signal.
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.
