Figure 1. Bandwidth conservation (a) FDM (b) OFDM [2]

From

Implementation and Performance Evaluation of OFDM System in Diverse Transmission Channel Using Simulink

Arun Agarwal, Kabita Agarwal

American Journal of Electrical and Electronic Engineering. 2015, 3(5), 117-123 doi:10.12691/ajeee-3-5-2