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Constellation Diagram of QPSK

 

 QPSK = 4-PSK. Each symbol in QPSK consists of 2 bits.

MATLAB Script

  clc;
  clear all;
  close all;
  M = 4; % constellation size = 4
  data = randi([0 (M-1)], 2520, 1);
  Phase = 0;
  QPSKData=pskmod(data,M,Phase);
  scatterplot(QPSKData);
  title('constellation diagram of qpsk')

Output 

 
 
 

 Constellation points are 1+0.j, 0+j, -1+0.j, 0-j
 

 Copy the MATLAB Code from here

 

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