Explore MATLAB source code curated for "OFDM" with clean implementations, documentation, and examples.
MATLAB simulation program implementing fundamental subcarrier allocation techniques for multi-user Orthogonal Frequency Division Multiplexing (OFDM) systems, featuring resource distribution algorithms and performance analysis
This MATLAB program simulates the PAPR reduction performance of companding expansion techniques in OFDM systems, evaluating how different μ values affect the degree of PAPR reduction through comprehensive algorithmic implementation.
An OFDM pre-distortion simulation model developed using Simulink for signal preprocessing to reduce transmission distortion
Implementation and analysis of Bit Error Rate (BER) and Symbol Error Rate (SER) performance plots for OFDM systems using 64-QAM modulation
Implementation of 802.11p wireless communication standard using OFDM with QPSK modulation and Rayleigh fading channel modeling
Subcarrier Allocation and Relay Selection Problems in Orthogonal Frequency Division Multiplexing (OFDM) Communication Systems
This project implements a simulation of the Selective Mapping (SLM) method for OFDM systems, complete with detailed graphical results. It serves as a valuable resource for beginners studying Peak-to-Average Power Ratio (PAPR) reduction techniques.
For those working on "MATLAB-based OFDM system simulation," check out my comprehensive resource! This integrated code combines two source codes from our platform, achieving perfect OFDM system simulation under MATLAB 7.0. The simulation workflow includes: audio data acquisition -> serial-to-parallel conversion -> 16QAM mapping -> IFFT processing -> cyclic prefix addition -> parallel-to-serial conversion -> transmission through ideal/multipath channels -> [...] (FFT processing, etc.) -> transmission result comparison (spectrum diagrams before/after transmission, audible quality assessment through audio file comparison - identical quality under ideal channel conditions). Special thanks to the two contributors who provided the original codes. This implementation demonstrates key digital communication concepts including modulation techniques, Fourier transforms, and channel modeling.
Complete MATLAB simulation code for OFDM systems including transmitter, channel model, and receiver implementation, with detailed OFDM technical documentation
OFDM (Orthogonal Frequency Division Multiplexing) is a digital multi-carrier modulation scheme based on Frequency Division Multiplexing (FDM). It utilizes numerous closely-spaced orthogonal subcarrier signals to transmit data through multiple parallel data streams or channels. Each subcarrier employs conventional modulation schemes like Phase Shift Keying (PSK) or Quadrature Amplitude Modulation (QAM) at low symbol rates, while maintaining an overall data rate comparable to traditional single-carrier modulation schemes within the same bandwidth. This article provides MATLAB implementation examples for BER simulation using BPSK-OFDM modulation over AWGN and Rayleigh channels, including the relationship between Eb/No and Es/No ratios.