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You need transition probabilities to find the capacity. The attached file about transition probabilities in fading channels may be useful.
Also I attached the book chapter of "Elements of Information Theory" about the channel capacity.
common precoder
By using pilot-assisted techniques, transmitter will have ability to predict the channel without feedback. It is called forward error control, and precoding is a technique of forward error control.
The real capacity is C=W log_2 (1 + SNR) but when a specific modulation scheme is used, the actual capacity will be degraded and this will be YOUR information rate not channel's. Because you limit the information source, and this limits the capacity. "Capacity of the channel" and "capacity of...
precoding fundamental
It is a preprocessing technique that performs transmit diversity and it is similar to equalization but the main difference is you have to optimize precoder with a decoder. Channel equalization aims to minimize channel errors, but precoder aims to minimize the error in the...
channel precoder
Precoding is a technique which exploits transmit diversity by weighting information stream, i.e. the transmitter send the coded information to the receiver in order to the pre-knowledge of the channel. The receiver is a simple detector, such as matched filter, and does not have...
Re: Noise in CDMA
In Gaussian channels, orthogonal codes help us to detect the information of each user without any interference from other users. In fading channels, orthogonality of the codes will be corrupted and it will cause multiuser interference and each user will be affected by this...
Re: How CDMA System ??
Increasing number of users will increase the effect of multiuser interference because in the same bandwidth, correlation of spreading codes are increasing. You may reduce the effect of multiuser interference by using multiuser detection method which requires the knowledge...
The given formula will calculate the capacity of a Gaussian channel, discarding any specific modulation. If you use any modulation scheme like PSK, Q-AM or something, the capacity of the specific system will be "constrained capacity" and it will be smaller than the real capacity. Of course, we...
Re: DSP - Matlab
First you have to give the range of n:
n=first:last;
then you can use N-point dft function for MATLAB:
X=fft(x,N);
where fft is "fast fourier transform", and you can find details about it on MATLAB help.
This may be useful:
Rate-distortion function when side-information may be present at the decoder
Kaspi, A.H.
Information Theory, IEEE Transactions on
Volume 40, Issue 6, Nov 1994 Page(s):2031 - 2034
Finite state machines is covered by discrete mathematics and directly related to Boolean algebra, Set theory, Graph Theory and indirectly Coding Theory.
This book may be useful:
Handbook of finite state techniques (Discrete mathematics & its applications)
Bruce W. WATSON
Re: definite integral
\[\frac{1}{\pi}\int_0^{\pi/2} \frac{\sin^2(\theta)}{\gamma_0+\sin^2(\theta)}d\theta=\frac{1}{\pi} [ x-\frac{\sqrt{\gamma_0} Arctan(\sqrt{\frac{1+\gamma_0}{\gamma_0}}Tan(x))}{\sqrt{1+\gamma_0}}]_0^{\pi/2}\]
or you can use MATLAB's "quad" function to evaluate the integral...
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