OFDM Channel Encoding and Decoding with MATLAB Implementation

This article explores the source code implementation of OFDM channel encoding and decoding using MATLAB. OFDM (Orthogonal Frequency Division Multiplexing) is a multi-carrier modulation technique widely employed in modern communication systems. The core algorithm partitions high-speed data streams into multiple low-speed substreams, enabling more reliable and efficient data transmission. Consequently, OFDM encoding and decoding play crucial roles in communication system design.

In this technical discussion, we delve into the MATLAB implementation of OFDM channel encoding and decoding source code. Specifically, we demonstrate how to implement these algorithms while explaining the functionality of each function and variable. The implementation includes key components such as constellation mapping, IFFT/FFT operations for orthogonal subcarrier generation, cyclic prefix insertion/removal, and error correction coding techniques. We also cover fundamental OFDM concepts and their practical applications in contemporary communication systems. Through comprehensive code examples and detailed explanations, this article aims to help readers thoroughly understand OFDM encoding/decoding principles and apply them effectively in practical scenarios using MATLAB's signal processing capabilities.