Design and implementation of OFDM+QAM communication system (based on IEEE standards)

Design and implementation of OFDM+QAM communication system (based on IEEE standards)

OFDM (Orthogonal Frequency Division Multiplexing) and QAM (Quadrature Amplitude Modulation) are key technologies commonly used in modern communication systems. This article will introduce how to use Matlab to implement an OFDM+QAM communication system based on IEEE standards, and provide the corresponding source code.

1. System parameter settings

First, we need to define the key parameters of the OFDM+QAM communication system. These parameters include the number of subcarriers, carrier frequency spacing, sampling frequency, number of transmitted symbols, and modulation order. In this example, we will consider 64 subcarriers, a frequency spacing of 15 kHz, a sampling frequency of 1 MHz, a number of 1000 transmitted symbols, and a QAM modulation order of 16.

% 系统参数设置
numSubcarriers = 64;        % 子载波数量
carrierSpacing = 15e3;      % 载波频率间隔
samplingRate = 1e6;