Body-Centric Terahertz Networks: Prospects and Challenges

Abstract

<div>Following recent advancements in Terahertz (THz)</div><div>technology, THz communications are currently being celebrated as key enablers for various applications in future generations of communication networks. While typical communication use cases are over medium-range air interfaces, the inherently small beamwidths and transceiver footprints at THz frequencies support nano-communication paradigms. In particular, the use of the THz band for in-body and on-body communications has been gaining attention recently. By exploiting the accurate THz sensing and imaging capabilities, body-centric THz biomedical applications can transcend the limitations of molecular, acoustic, and radio-frequency solutions. In this paper, we study the use of the THz band for body-centric networks, by surveying works on THz device technologies, channel and noise modeling, modulation schemes, and networking topologies. We also promote THz sensing and imaging applications in the healthcare sector, especially for detecting zootonic viruses such as Coronavirus. We</div><div>present several open research problems for body-centric THz networks.</div>

Machine learning with A MIMO Antenna for Wireless Communication Systems

“…However, the low correlation and mutual coupling between signals at the antenna ports poses a problem for the operation of his MIMO in wireless devices, especially compact devices requiring minimal antenna spacing. To address this, several antenna designs for MIMO applications have been proposed [44][45]. For example, [43] proposed his compact MIMO antenna design with his four planar H-shaped antennas with directional radiation patterns and high isolation.…”

“…For example, [43] proposed his compact MIMO antenna design with his four planar H-shaped antennas with directional radiation patterns and high isolation. In another study [45], he examined a tri-band E-shaped printed monopole antenna for MIMO applications with a mutual coupling of -15 dB and a correlation coefficient of less than 0.002. However, the distance between antenna elements is λ/10.…”

“…In [45], a two-element planar inverted-F antenna array with a pitch of 20 mm was proposed. It has an isolation of 20 dB and operates at a frequency of 5.2 GHz.…”

“…The desired performance of his proposed MIMO antenna is achieved using CST Studio software. This compact antenna is suitable for use in a variety of applications such as mobile communication systems and biomedical monitoring [45].…”