Figure 1. Orthogonal OFDM Spectrum Sub-Channels [20]

From

Characterization of Orthogonal Frequency Division Multiplexing (OFDM) Communication Links

Rahmon Kamorudeen Adewale, Ogunti Erastus Olarewaju, Apena Waliu Olalekan

American Journal of Electrical and Electronic Engineering. 2020, 8(3), 91-97 doi:10.12691/ajeee-8-3-4