The OCDM System Model

Abstract

This paper focuses on the multi-carrier modulation technique called Orthogonal Chirp DivisionMultiplex (OCDM). The first part of the paper contains theoretical and mathematical descriptionof the OCDM system in general. Then digital model of the OCDM modulator and demodulatoris realized in programming language MATLAB. Realization of the model represents two possiblemathematical implementations of the Fresnel transform, whose discrete form is kernel of the system.In the digital model is performed simulation of information from transmitter to receiver in AWGNchannel. Results are evaluated from the viewpoint of the system resilience against errors.