300 GHz Broadband Transceiver Design for Low-THz Band Wireless Communications in Indoor Internet of Things

Abstract

This paper presents the architectural design of a 300 GHz transceiver system that can be used to explore the high speed communication opportunities offered by the Terahertz (THz) band for advanced applications of Internet-of-Things (IoT). We use low cost industry ready components to prepare a fully customizable THz band communication system that provides a bandwidth of 20 GHz that is easily extendable up to 40 GHz. Component parameters are carefully observed and used in simulations to predict the system performance while the compatibility of different components is ensured to produce a reliable design. Our results show that the receiver provides a conversion gain of 51 dB with a noise figure (NF) of 9.56 dB to achieve a data rate of 90.31 Gbps at an operation range of 2 meters, which is suitable for high speed indoor IoT nodes. The flexible design of the transceiver provides groundwork for further research efforts in 5G IoT applications and pushing boundaries of throughputs to the order of terabits per second (Tbps).

A Survey on Green 6G Network: Architecture and Technologies

“…(1) THz communication system is promised to support data rates on the order of 100 Gbps or more with tens of GHz available bands in THz spectrum, while there is only 9 GHz bandwidth within mm-Wave band [48]. (2) THz wave could realize secure communication due to narrow beam and short pulse duration that drastically limit the probability of eavesdropping.…”

A novel method to reduce indoor signal power fluctuation using multiple adaptive terahertz sources

“…17 A pulsed photoconductive THz source is presented by Garufo et al that can radiate mW-level average power over a large bandwidth, by exploiting both the optical and electrical properties of photoconductive sources and the ultra-wideband properties of connected antenna arrays. 18 In many studies, the distance between the transmitter and the receiver was 2 (Khalid et al 19 ) or 6.5 m (Guan et al 20,21 ), and other test scenarios did not exceed 1 m. Therefore, it is necessary to expand the simulation environment to develop an accurate THz indoor channel model.…”

Potential key challenges for terahertz communication systems

“…Such analysis must quantify the spectrum, energy, and communication requirements that 6G needs to support the identified driving applications [42]. Recent works in [43,44] provide a first step in this direction.…”