Need Urgent Help
1 view (last 30 days)
Show older comments
K = 128; % SIZE OF FFT
N = 4; % NUMBER OF SELECTIONS
QPSK_Set = [1 -1 1i -1i];
Phase_Set = [1 -1];
MAX_SYMBOLS = 1e5;
PAPR_Orignal = zeros(1,MAX_SYMBOLS);
PAPR_SLM = zeros(1,MAX_SYMBOLS);
X = zeros(N,K);
Index = zeros(N,K);
for nSymbol=1:MAX_SYMBOLS
Index(1,:) = randi(1,K,length(QPSK_Set))+1;
Index(2:N,:) = randi(N-1,K,length(Phase_Set))+1;
X(1,:) = QPSK_Set(Index(1,:));
Phase_Rot = Phase_Set(Index(2:N,:));
X(2:N,:) = repmat(X(1,:),N-1,1).*Phase_Rot;
x = ifft(X,[],2);
Signal_Power = abs(x.^2);
Peak_Power = max(Signal_Power,[],2);
Mean_Power = mean(Signal_Power,2);
PAPR_temp = 10*log10(Peak_Power./Mean_Power);
PAPR_Orignal(nSymbol) = PAPR_temp(1);
PAPR_SLM (nSymbol) = min(PAPR_temp);
end
[cdf1, PAPR1] = ecdf(PAPR_Orignal);
[cdf2, PAPR2] = ecdf(PAPR_SLM);
semilogy(PAPR1,1-cdf1,'-b',PAPR2,1-cdf2,'-r')
legend('Orignal','SLM')
title('N=4')
xlabel('PAPR0 [dB]');
ylabel('CCDF (Pr[PAPR>PAPR0])');
grid on
when i try to run this script following error is occoured and script was not working....
??? Undefined function or variable 'SLM'.
please do help....its really urgent..and i dont have much time
thank you very very much
0 Comments
Accepted Answer
Walter Roberson
on 21 Mar 2011
Where does the error occur, exactly? The only place that you use SLM is in a quoted string in legend(), which will treat it as a string and not try to execute it.
0 Comments
More Answers (0)
See Also
Categories
Find more on ANOVA in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!