Performance Comparison of Channel Coding Techniques for OFDM System

Abstract

Wireless communication is one of the speedily evolving and dynamic technology areas in the realm of communication. OFDM is an acronym for Orthogonal Frequency Division Multiplexing. It is a version of FDM in which orthogonal subcarriers are closely spaced to maximize bandwidth consumption. By decreasing Inter Symbol Interference (ISI) and increasing the Signal-to-Noise ratio (SNR), it has enhanced the quality of long-distance communication. It’s commonly employed in digital communication systems to safeguard digital data from noise and interference while also reducing bit mistakes. Convolutional codes, Block codes, are the two fundamental forms of channel codes. Block codes are based on abstract algebra and finite field arithmetic. They are capable of detecting and correcting faults. This category includes LDPC and Reed Solomon codes. Convolution codes, alternatively are created using a distinct strong mathematical framework and are generally utilised for real-time error correction. They combine all of the data into a single codeword. Reed-Solomon codes are block-based error correcting codes used in digital communications, storage, and ADSL, among other uses. The BER performance of an OFDM system is investigated in this paper using various channel coding algorithms.