Design and Simulation of Terahertz Band Hardware Architecture for Ultra-Fast 6G Wireless Communication
DOI:
https://doi.org/10.31838/NJAP/07.02.31Keywords:
Terahertz Communication, 6G Wireless, Graphene HEMTs, Reconfigurable Antennas, CST Simulation, , Cadence Spectre, Ultra-Fast Transceiver Design, Energy-Efficient Hardware, High-Gain THz Arrays, Tbps Data RateAbstract
The rising need of ultra-high data rates, ultra-low latency, and the number of devices connected to the network of the next-generation wireless system has motivated a strong interest in Terahertz (THz) band communication as one of the opportunities to realize sixth-generation (6G) networks. This paper proposes simulation of an ultra-efficient hardware architecture that would operate within the THz frequency regime (0.110 THz) that is used to enable ultra-fast, ultra-low-power 6G wireless communications. It has all the latest technology incorporated like high-gain reconfigurable antenna arrays, ultra-broadband low-noise amplifiers (LNA), etc so that it can support major challenges like high path loss, inability to scale devices, lo inefficiency in terms of power used in THz propagation. The reconfigurable antenna subsystem should be able to work at 0.3-0.6 THz, offering adaptive beamforming and high directivity, where simulation results demonstrated the peak gain of 16.2 dBi and the reflection coefficient (S11) lower than -10 dB. The RF front end uses graphene HEMTs and broadband LNA and has the ability to operate with low noise noise figure of less than 3 dB and can be scaled and have low thermal stability. The signal chain will be taken through the chain starting with antenna input to baseband output in the context of which both electromagnetic simulations using CST Microwave studio and transistor-level circuits using Cadence Spectre will be carried out to verify the model. Moreover, MATLAB is applied to the baseband modulation and error correction techniques according to the variability of channel conditions to calculate bit error rate (BER) and spectral efficiency. This proposed system has demonstrated peak data rates greater than 1.2 Tbps, energy per bit as low as 12 pJ/bit and high levels of signal integrity and link reliability. Those findings show that the architecture has the feasibility as a prospective platform to support new 6G applications, such as wireless backhaul, chip-to-chip, immersive virtual/augmented reality (XR), and real-time holography. The presented work is in the form of a new, scalable hardware implementation that partially fills the gap between the theory and practice of THz communications, giving a blueprint concerning future transceiver developments in 6G.
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