The following Matlab project contains the source code and Matlab examples used for in this code it is done simply by modulating msg with in and quad phase of carrier. . QAM (Quadrature Amplitude Modulation). Its an AM technique of sending more data on same frequency by taking orthogonal carrier. Its simply done in this code.
The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there.