Faster-than-Nyquist (FTN) signaling is a non-orthogonal transmission technique, which has the potential to provide significant spectral efficiency improvement. This paper studies the capacity of FTN signaling for both frequency-flat and for frequency-selective multiple-input multiple-output (MIMO) channels. We show that precoding in time and waterfilling in space is capacity achieving for frequency-flat MIMO FTN. For frequency-selective fading, joint waterfilling in time, space and frequency is required.
@article{arxiv.2111.07867,
title = {Faster-than-Nyquist Signaling for MIMO Communications},
author = {Zichao Zhang and Melda Yuksel and Halim Yanikomeroglu},
journal= {arXiv preprint arXiv:2111.07867},
year = {2022}
}
Comments
Have been submitted to IEEE transactions on wireless communications