Implementation and Comparison of COFDM and OFDM using TMS320C6713

Background: As wireless communication systems progress, there is a more significant requirement for high data transmission rates, requiring the investigation of practical multicarrier modulation approaches.Objective: The article’s objective is to develop and compare two popular multicarrier modulation algorithms, Coded Orthogonal Frequency Division Multiplexing (COFDM) and Orthogonal Frequency Division Multiplexing (OFDM), utilising the TMS320C6713 digital signal processor and the MATLAB Simulink platform.Methods: The article goes deeply into the theoretical and practical aspects of COFDM and OFDM. We assess both methods’ spectrum and energy efficiency using MATLAB Simulink simulations, considering the real-world constraints they may encounter.Results: The results show that COFDM has improved spectral efficiency, particularly in frequency-selective fading channels, and higher resistance to interference. As a result, COFDM is an excellent choice for applications requiring high data rates and continuous transmission under challenging situations. On the other hand, OFDM has higher energy efficiency, making it the modulation of choice for situations with strict power limits.Conclusion: The current study provides critical insights into the practical performance of COFDM and OFDM, supporting stakeholders in identifying the best modulation approach for various communication applications. The insights reached are critical in pushing the creation of digital communication systems adapted to individual needs.