TY - GEN
T1 - Dual-Channel OOK (D-COOK) Modulation for UAV-Assisted Mixed THz/VLC Systems
AU - Rajahrajasingh, Hanojhan
AU - Jayakody, Dushantha Nalin K.
AU - Muthuchidambaranathan, P.
AU - Tsiftsis, Theodoros A.
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This paper investigates a dual-hop UAV-assisted communications system that integrates Terahertz (THz) and Visible Light Communication (VLC) over a decode-and-forward (DF) relay that bridges the THz and VLC segments. The VLC channel is modelled to account for additive background noise and deterministic fading, while the THz link is subject to path loss, absorption loss, and pointing errors. A comparative analysis with Free Space Optics (FSO)-VLC and Radio Frequency (RF)-VLC systems highlights the superior performance of the THz-VLC system, especially at high signal-to-noise ratios (SNR), in terms of BER and outage probability. Furthermore, a novel modulation technique is proposed that enables increased data rates. Performance evaluation of the proposed modulation scheme further validates the effectiveness of the system.
AB - This paper investigates a dual-hop UAV-assisted communications system that integrates Terahertz (THz) and Visible Light Communication (VLC) over a decode-and-forward (DF) relay that bridges the THz and VLC segments. The VLC channel is modelled to account for additive background noise and deterministic fading, while the THz link is subject to path loss, absorption loss, and pointing errors. A comparative analysis with Free Space Optics (FSO)-VLC and Radio Frequency (RF)-VLC systems highlights the superior performance of the THz-VLC system, especially at high signal-to-noise ratios (SNR), in terms of BER and outage probability. Furthermore, a novel modulation technique is proposed that enables increased data rates. Performance evaluation of the proposed modulation scheme further validates the effectiveness of the system.
KW - DF Relay
KW - Modulation
KW - THz
KW - UAV
KW - VLC
UR - https://www.scopus.com/pages/publications/105018097563
U2 - 10.1109/ICCWorkshops67674.2025.11162485
DO - 10.1109/ICCWorkshops67674.2025.11162485
M3 - Conference contribution
AN - SCOPUS:105018097563
T3 - 2025 IEEE International Conference on Communications Workshops, ICC Workshops 2025
SP - 1305
EP - 1310
BT - 2025 IEEE International Conference on Communications Workshops, ICC Workshops 2025
A2 - Valenti, Matthew
A2 - Reed, David
A2 - Torres, Melissa
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE International Conference on Communications Workshops, ICC Workshops 2025
Y2 - 8 June 2025 through 12 June 2025
ER -
