Sub carrier mapping and IFFT signal formation

clc;clear all;close all;

input=[1 1 0 1 0 0 1 0 ]; %input bit

M=4;

Nsc=148;

N = 2;

X = bin2dec(reshape(sprintf('%u',input),N,[]).'); %bin2dec conversion

y=qammod(X,M);

scatterplot(y); %QAM modulation

This is my code. I don't know how to do subcarrier mapping and finally I have to generate IFFT signal after mapping. Can someone help me with this?

Answer 1

[Chaitanya Mallela]

Refer the documentation

https://www.mathworks.com/help/comm/ref/comm.ofdmmodulator-system-object.html

https://www.mathworks.com/help/comm/ref/comm.ofdmmodulator.showresourcemapping.html