A New Preamble Signal Design for Random Access in Sub-Terahertz 6G Cellular Systems

Lee, Seung–Hyun; Jeong, Woojae; Jung, Jungsoo; Lee, Juho; Choi, Sunghyun

doi:10.1109/iccworkshops53468.2022.9814469

Cited by 1 publication

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“…THz wireless backhaul/fronthaul networks have been investigated specifically in the context of single-user transmission [12]- [16], limited research have focused on the multi-user THz wireless communications [17]- [21]. The authors in [17], the authors propose hybrid beamforming applicable to situations involving single-users as well as multiple users.…”

Section: Introductionmentioning

confidence: 99%

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Performance of Dual-Hop Relaying for THz-RF Wireless Link Over Asymmetrical $\alpha$-$\mu$ Fading

Bhardwaj

Zafaruddin

2021

IEEE Trans. Veh. Technol.

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The current body of research on terahertz (THz) wireless communications predominantly focuses on its application for single-user backhaul/fronthaul connectivity at sub-THz frequencies. First, we develop a generalized statistical model for signal propagation at THz frequencies encompassing physical layer impairments, including random path-loss with Gamma distribution for the molecular absorption coefficient, short-term fading characterized by the α-η-κ-µ distribution, antenna misalignment errors, and transceiver hardware impairments. Next, we propose random access protocols for a cell-free wireless network, ensuring successful transmission for multiple users with limited delay and energy loss, exploiting the combined effect of random atmospheric absorption, non-linearity of fading, hardware impairments, and antenna misalignment errors. We consider two schemes: a fixed transmission probability (FTP) scheme where the transmission probability (TP) of each user is updated at the beginning of the data transmission and an adaptive transmission probability (ATP) scheme where the TP is updated with each successful reception of the data. We analyze the performance of both protocols using delay, energy consumption, and outage probability with scaling laws for the transmission of a data frame consisting of a single packet from users at a predefined quality of service (QoS).

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Section: Introductionmentioning

confidence: 99%

“…The authors in [20] address the channel estimation problem for an reconfigurable intelligent surface (RIS)-aided THz multi-user multi-input single-output system utilizing a two-stage channel estimation scheme. In [21] presents a physical random access channel preamble design for the 6G cellular communication systems in the sub-THz bands.…”

Section: Introductionmentioning

confidence: 99%

Performance of Dual-Hop Relaying for THz-RF Wireless Link Over Asymmetrical $\alpha$-$\mu$ Fading

Bhardwaj

Zafaruddin

2021

IEEE Trans. Veh. Technol.

View full text Add to dashboard Cite

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A New Preamble Signal Design for Random Access in Sub-Terahertz 6G Cellular Systems

Cited by 1 publication

References 0 publications

Performance of Dual-Hop Relaying for THz-RF Wireless Link Over Asymmetrical $\alpha$-$\mu$ Fading

Performance of Dual-Hop Relaying for THz-RF Wireless Link Over Asymmetrical $\alpha$-$\mu$ Fading

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