Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by charly87

  1. C

    use of least square technique in ofdm

    has anyone done any workk on channel estimation in ofdm using the least square method? i need help understanding how it works. i have written a ber code under rayleigh fading in ofdm and i need tto know how to go from there to insert pilots many thanks
  2. C

    Adding White Gaussian noise to a signal

    hi pulkit! have u ever came across channel estimation in ofdm? thanks
  3. C

    Adding White Gaussian noise to a signal

    Hi Pulkit, thanks for ur help and time, i am grateful.
  4. C

    Adding White Gaussian noise to a signal

    Hi Pulkit, why is that the rayleigh fading also has the same equation as n which u said represent complex baseband noise. thanks - - - Updated - - - h = 1/sqrt(2)*[randn(1,N) + j*randn(1,N)]; % Rayleigh channel why this equation for rayleigh fading?
  5. C

    Adding White Gaussian noise to a signal

    Hi Pulkit, why would we want the noise variance to be equal to 1. also have ever used the awgn function in matlab? when i used the function, my results are not correct but when using the equation u explained, my results are fine even though i don,t quite get why it works. regards
  6. C

    Adding White Gaussian noise to a signal

    HI! why is the noise variance=1? normally the variance of noise will No/2. also in the second equation, why -SNR and why divide by 20. thanks
  7. C

    Adding White Gaussian noise to a signal

    n = 1/sqrt(2)*[randn(1,N) + j*randn(1,N)]. 10.^(-SNR_dB(ii)/20)*n what does the above two equations represeent? i have seen quite a lot to define noise but is it exactly they means? thanks
  8. C

    i want to add fading to this code. how is it done please? Thanks very much

    clear all; N = 10^6 ;% number of bits or symbols SNR_db = [0: 25]; % multiple Eb/N0 values SNR= 10.^(SNR_db./10); %Transmitter d = rand(1,N)>0.5; % generating 0,1 with equal probability Signal = 2*d - 1; % BPSK modulation 0 -> -1; 1 -> 1 for i = 1:length(SNR_db) w = awgn(Signal,SNR_db(i),-3)...
  9. C

    can anyone help please? i am trying to simulate the BER in OFDM

    % the code is without the addition of the cyclic prefix. the results is not as i am expecting, can anyone help please? clear all; N=24;% size of fft N1 = 6 ;% number of bits or symbols SNR_db = [1: 20]; % multiple Eb/N0 values SNR= 10.^(SNR_db./10); errors = zeros(1,length(SNR_db))...
See more

Part and Inventory Search

Back
Top