S. Zhang, Broadband patch antenna design using differential evolution algorithm. Microw. Opt. Technol. Lett. 51(7), 1692-1695 (2009) 26. Z. Zhang, Y. Xiao, Z. Ma, M. Xiao, Z. Ding, X. Lei, G.K. Karagiannidis, P. Fan, 6G wireless networks: vision, requirements, architecture, and key technologies. IEEE Vehic. Technol. Mag. 14(3), 28-41 (2019). https://doi.org/10.1109/MVT.2019.2921208 Index Antenna synthesis, 90, 91 Heterogeneous networks (HetNet), ix, 9, 19, 35, 147-151, 153, 156, 163, 227 Beyond 5G (B5G), vii-x, 7, 89-115, 119-139, 143-163, 167-185, 187-203, 208-211, Imperfect CSI, 107, 108, 110-112, 146, 168, 227,231 171-178, 184, 185 Internet of Things (IoT), ix, 3, 4, 11, 18, 20, 33, 37, 42, 44, 115, 119, 143, 146, 149, 167, 190, 194, 199, 207-227, 231-252 Cramer-Rao lower bound (CRLB), 89, 101, 105-107, 115 Layer division multiplexing (LDM), ix, 231-252 Linear and non-linear EH, ix, 170 Deep physical layer (DPL), vii, viii, 59-84 Device-to-device (D2D) cooperation, ix, 152-155, 159, 163 Massive machine type communications, 146, 167, 188, 208, 227, 255 Massive MIMO, vii, viii, 2, 4, 9, 61, 69, 76, Energy harvesting (EH), ix, 167-185, 210 89, 90, 92, 93, 108-115, 119-121, Evolutionary algorithms (EAs), 256, 257, 262, 126-130, 132-133, 137, 139, 144, 187, 209, 240 Maximum ratio combining (MRC), viii, 89, 108, 110-115, 120, 121, 128-129, 131-133, 135, 137-139, 173, 178, 179 FBMC, viii, 89-115 MIMO communication systems, 67, 75, 79, 81 Fifth generation (5G), 1, 59, 89, 119, 143, 167, Multi-access edge computing (MEC), 2, 3, 187, 207, 231, 255 37-40, 47 Fifth generation (5G) and beyond networks, ix, Multi-hop communication, viii, 119-139 143, 144, 146, 163, 231 Multiple-input multiple-output (MIMO), 2, 61, Full-duplex (FD), viii, 119-139 89, 120, 167, 187, 209, 240, 259 © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2023 M. A. Matin (ed.), A Glimpse Beyond 5G in Wireless Networks, Signals and Communication Technology, https://doi.org/10.1007/978-3-031-137