This project was part of our study of NC-OFDM transmission at WINLAB. The study was mainly conducted by Gokul Sridharan (a post-doc researcher at the time). The goal of this work was to highlight the physical layer security features of a NC-OFDM transmission. The study looked from an eavesdropper’s perspective and tried to obtain the necessary parameters using Cyclic-autocorrelation function (CAF) for further decoding of the NC-OFDM signal.

Here is the Github repository for this study (in GNU Octave)
https://github.com/r4tn3sh/ncofdm_security_study
Here is the link to our paper at MILCOM 2016
G. Sridharan, R. Kumbhkar, N. B. Mandayam, I. Seskar and S. Kompella, “Physical-layer security of NC-OFDM-based systems,” MILCOM 2016 – 2016 IEEE Military Communications Conference, Baltimore, MD, USA, 2016, pp. 1101-1106, doi: 10.1109/MILCOM.2016.7795477.