MATLAB中的随机整数

Question

我需要生成一个带有随机数字信息的输入信号，该信号由0到15的40320个整数组成，使用矩形16QAM调制方案，最少101个错误，以确定误码率。

如何在Matlab中实现这一点？到目前为止我已经编写了这段代码。有人可以开导我吗？

 M=16; %signal constellation size
 log2M =log2(M); %number of bits per symbol
 N= 40320; %No of random integers sent
 coderate =1;% FEC not required
 MinNoErr =101; %Minimum no of received symbol error 
 MaxNoErr =11e9; %Maximum no of received symbol error 
 nsamp =1; %No of samples per symbol
 B= randi([1, M-1],N,1); % Random integer data stream

% Modulate
hMod = comm.RectangularQAMModulator(M); % Create a 16-QAM modulator
txqam = modulate(modem.qammod(M),B);% Modulate using 16-QAM.
txqam =T; %transmited signal

% Send signal over an AWGN channel
EbNo = [5:1:15]; % In dB
SNR = EbNo + 10*log10(log2M*coderate) - 10*log10(nsamp);
hChan = comm.AWGNChannel('NoiseMethod', 'Signal to noise ratio (SNR)', ...
'SNR',SNR);

hChan.SignalPower = (T' * T)/ length(T);
ynoisy = step(hChan,T);

Answer 1

根据我的理解，你需要的是一个长度为40320的向量，其间隔为[1,15]的随机整数。如果是这样，您只需要：

my_vector = randi(15 + 1, [1, 40320]) - 1;

如果这不是你想要的，请说明你需要什么。