Design and Simulation of Orthogonal Frequency-Division Multiplexing (OFDM) Signaling

The orthogonal frequency-division multiplexing (OFDM) is a modulation scheme which is spectrally efficient and which decomposes one carrier into several subcarriers. Each subcarrier is orthogonal, allowing the transfer of data on each subcarrier simultaneously. This work performs the strengths of OFDM and quadratic amplitude modulation (QAM) in parallel on a communication channel. A MATLAB program was written to examine and investigate the communication systems of the OFDM by comparing OFDM and QAM single carrier. This technique is significant for the complex simulates systems. The demonstration of two graphical user interfaces (GUI) incorporates the simulation concepts of OFDM