1. C. Oestges and F. Quitin, Inclusive Radio Communications for 5G and Beyond. Academic Press, first-edition, May 2021.
2. S. Tripathi, N. V. Sabu, A. K. Gupta, and H. S. Dhillon, Millimeter-Wave and Terahertz Spectrum for 6G Wireless. Y. Wu et al., 6G Mobile Wireless Networks. Springer, Cham. 2021.
3. H. Sarieddeen, M. S. Alouini, and T. Y. Al-Naffouri, "Terahertz-band ultra-massive spatial modulation MIMO," IEEE Journal on Selected Areas in Communication, vol. 37, no. 9, pp. 1–19, June 2019.
4. E. C. Strinati, S. Barbarossa, J. L. Gonzalez-Jimenez, D. Kténas, Nicolas Cassiau, L. Maret, and C. Dehos, "6G: the next frontier: from holographic messaging to artificial intelligence using subterahertz and visible light communication," IEEE Vehicular Technology Magazine, vol. 14, no. 3, pp. 42–50, Sept. 2019.
5. M. Liu, "Research on the development of intelligent logistics established on 5G technology," Proceeding of the IEEE 2nd International Conference on Urban Engineering and Management Science (ICUEMS), Sanya, China, 29–31 Jan. 2021, pp. 1–3.