TY - JOUR
T1 - Coverage Modeling and Analysis for Outdoor THz Networks with Blockage and Molecular Absorption
AU - Chen, Wenrong
AU - Li, Lingxiang
AU - Chen, Zhi
AU - Quek, Tony Q.S.
N1 - Funding Information:
Manuscript received January 2, 2021; accepted January 29, 2021. Date of publication February 2, 2021; date of current version May 10, 2021. This work was supported in part by the National Key Research and Development Program of China under Grant 2018YFB1801500. The associate editor coordinating the review of this article and approving it for publication was N. Zlatanov. (Corresponding author: Zhi Chen.) Wenrong Chen, Lingxiang Li, and Zhi Chen are with the National Key Laboratory on Communication, University of Electronic Science and Technology of China, Chengdu 611731, China (e-mail: [email protected]; [email protected]; [email protected]).
Publisher Copyright:
© 2012 IEEE.
PY - 2021/5
Y1 - 2021/5
N2 - Terahertz (THz) communication has been envisioned as a key technology for providing ultra-wide bandwidth and high-speed data transmission in future networks. However, THz band signal suffers from frequency-dependent path-loss, molecular absorption and line-of-sight (LoS) blockage. Thus, coverage modelling for THz networks has essential difference from low-band networks. In this letter, considering blockage, directional antennas and molecular absorption, we develop an analytical model for coverage probability analysis in outdoor THz networks based on stochastic geometry. Accuracy of the proposed model is validated through Monte-Carlo simulations. Based on the proposed model, we further uncover the impact of nodes density, transmission distance and atmosphere on network coverage and available transmission bandwidth. Numerical results reveal that denser nodes, longer transmission distance, lower latitude and more humid seasons result in lower coverage probability and narrower transmission windows.
AB - Terahertz (THz) communication has been envisioned as a key technology for providing ultra-wide bandwidth and high-speed data transmission in future networks. However, THz band signal suffers from frequency-dependent path-loss, molecular absorption and line-of-sight (LoS) blockage. Thus, coverage modelling for THz networks has essential difference from low-band networks. In this letter, considering blockage, directional antennas and molecular absorption, we develop an analytical model for coverage probability analysis in outdoor THz networks based on stochastic geometry. Accuracy of the proposed model is validated through Monte-Carlo simulations. Based on the proposed model, we further uncover the impact of nodes density, transmission distance and atmosphere on network coverage and available transmission bandwidth. Numerical results reveal that denser nodes, longer transmission distance, lower latitude and more humid seasons result in lower coverage probability and narrower transmission windows.
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U2 - 10.1109/LWC.2021.3056525
DO - 10.1109/LWC.2021.3056525
M3 - Article
AN - SCOPUS:85100743031
SN - 2162-2337
VL - 10
SP - 1028
EP - 1031
JO - IEEE Wireless Communications Letters
JF - IEEE Wireless Communications Letters
IS - 5
M1 - 9344846
ER -