MIMO Communication in MATLAB

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MIMO Communication in MATLAB

The code below is an example of 2 X 2 MIMO.

MATLAB Code

clc;
clear all;
close all;

% MIMO System Parameters
numTx = 2; % Number of transmit antennas
numRx = 2; % Number of receive antennas
numSymbols = 50; % Number of symbols to transmit

% Generate random binary data
data = randi([0, 1], numTx, numSymbols);

% PSK Modulation (BPSK)
modulatedSymbols = 1 - 2 * data; % BPSK modulation: '0' maps to +1, '1' maps to -1

% Precoding (Identity Matrix for demonstration)
precodingMatrix = eye(numTx);

% Transmit Signal
transmitSignal = precodingMatrix * modulatedSymbols;

% Channel (Rayleigh Fading Channel)
H = (randn(numRx, numTx) + 1i * randn(numRx, numTx)) / sqrt(2); % Rayleigh fading channel

% Received Signal
receivedSignal = H * transmitSignal;

% Demodulation
demodulatedSymbols = H' * receivedSignal;

% PSK Demodulation (BPSK)
receivedData = demodulatedSymbols < 0; % Decision threshold at 0

Output

Fig 1: Original Message Bits

Fig 2: Received Message Bits

Copy the MATLAB Code from here

Parent Topics

MIMO - Multiple Input Multiple Output

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