# Search results

1. ### Simulation for this channel by Matlab!!??

Hello! From here download the book, it has matlab examples for channel modeling. Hope this helps, Thommer
2. ### Help: Wireless Communication course by Tse at Berkeley

Hello! I don't think you have to pay extra sum of money to join to this course. It's one of the courses offered for MSC qualification. Most university web pages are free to everybody (check out Stanford courses), but exception always can be found, like CMU courses. regards, Thommer
3. ### Help: Wireless Communication course by Tse at Berkeley

Hello! Is there anyone who has the education material for the course "Fundamentals of Wireless communication" held by David Tse at Berkeley in 2004 spring? The link is the following, but the access is denied (even when using proxy server): **broken link removed** I'm in great need of this, as...
4. ### Channel environment, impulse response question

Thanks for your answer, but I have the code now I only need the different impulse response values (I was told to solve the problem in this way) regards, Thommer
5. ### How to calculate the impulse response values?

Channel model question Hello! I'm given the following plot. I know that the sampling frequency is 8Khz (speech). I have to calculate the impulse response values for my matlab simulation... Please help me how to do this, thank you in advance, regards, Thommer
6. ### Channel environment, impulse response question

So this means, If I want to simulate the urban, rural..etc environment, instead of the AWGN model (with ISI as well (h)) I have to use those channel models you mentioned? I simply thought that I only change the impluse response values (to something that I'm looking for) and then I'll get the...
7. ### Channel environment, impulse response question

Hello! I have implemented in matlab some classical channel equalization methods (I used AWGN,BPSK). I have to make BER vs SNR simulations and should do this in different channel environments (rural, hilly, urban..etc). I'm looking for the corresponding impulse response values for them, but so...
8. ### Simple matlab question (matrix->vector)

Hello All! I have a probably primitive problem, but please help me! I have a matrix (arbitrary), I want each row of this matrix to be in a separate vector. eg: y=[ -1 1 -1 -1 1 -1 1 -1 -1 1 1 -1]; I tried the following: t = reshape(y',1,[]) -> [-1 1 -1 -1 1 -1 1 -1 -1 1...

Thanks for your help, but I solved the problem I used matrix - vector form and then easily made the convolution instead of dealing with loops Thommer
10. ### How to calculate the theoretical BER?

Re: Theoretical BER Hello! Thanks for your andwer! I'd like to transmit binary data e.g {-1,1}. If the noise has 0 mean and sqrt(N0) standard deviation, and Eb=1 then is that suitable calculation you wrote me for theoretical BER? Thommer
11. ### How to calculate the theoretical BER?

Hello! I have an AWGN channel model (for single user) The noise is: nu~N(0,sqrt(N0)) 0 mean and sqrt(N0) standard deviation, where N0 is the noise energy. In my case SNR=1/N0. How can I calculate the theoretical Bit error rate? Thank you Thommer
12. ### MMSE equalizer for MATLAB

mmse equalizer Hello! I'm looking for MMSE equalizer matlab code for AWGN channel model , single user mode. Thank you in advance, Thommer
13. ### Steepest descent in matlab

matlab steepest descent Hello, I have a function which contains sums and a normal distribution as well.As I read the Matlab tutorial, for finding the gradient is better to use the conjugate gradient method, but I have to solve this with the steepest descent method. Is there any built in...