Find a row with that satisfy the condition to be transmitted as signal

I am using Selective Mapping to reduce PAPR value and my problem is i cant seem to find the right way to extract the row with the lowest PAPR value to be transmitted as signal. This is my code. There is N row in the matrix and i want to extract the row that gives minimum papr1 value as sigmin.

A1 = randi([0 1],1,NUM_BIT1);

% QPSK MAPPING
F_SIG_NO_CP1 = 1-2*A1(1:2:end) + 1i*(1-2*A1(2:2:end));

%generate the phase sequence 
b = randi([-1 1],N,FFT_LEN1);

% Elementwise Multiplication
mod_sig(1:N,:)=b.*F_SIG_NO_CP1;

% IFFT operation
T_qpsk_sig = ifft(mod_sig); % T stands for time domain
mibexp1=abs(T_qpsk_sig);
smibexp1=mibexp1.^2;

% Calculating PAPR for each of the N blocks
for i=1:N
papr1(i,1)=(max(smibexp1(i,:)))/(mean(smibexp1(i,:)));
end;

% select signal with minimum PAPR

sigmin = min(T_qpsk_sig);

Answer 1

[Ganapathi Subramanian]

It is my understanding that you are working on selective mapping to reduce PAPR and have uncertainty in extracting the signal with low PAPR.Please refer to the following code.

% select signal with minimum PAPR   
[~,minpapridx]=min(papr1); 
% minpapridx gives the index of minimum value in papr1 
% papr1 is a N*1 matrix 
sigmin=T_qpsk_sig(minpapridx,:); 

For further information regarding min function refer this documentation

https://www.mathworks.com/help/matlab/ref/min.html

[Nur Qamarina]

Thank you for your help! Now i understand.