Inter-orbital Inter-satellite communication link performance analysis at THz band considering gravity-induced antenna pointing error
Inter-satellite communication (ISC) plays a vital role in low Earth orbit (LEO) satellite communication systems, enabling seamless communication among satellites located within the same or different orbital planes. This paper investigates the link performance of LEO satellites at terahertz (THz)...
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Main Authors: | , , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2025
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Subjects: | |
Online Access: | https://hdl.handle.net/10356/182829 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | Inter-satellite communication (ISC) plays a vital
role in low Earth orbit (LEO) satellite communication systems,
enabling seamless communication among satellites located within
the same or different orbital planes. This paper investigates the
link performance of LEO satellites at terahertz (THz) band,
taking the distance between the LEO satellites and satellite
position perturbations into account. The performance metrics
for the link, including the average bit error rate (BER), outage
probability and ergodic capacity are formulated and employed
to assess the performance of inter-orbital ISC at THz band.
Simulation results demonstrate that an increase in the variance
of the beam misalignment angle reduces the accuracy of the ISC
link, resulting in a higher average BER and outage probability.
Furthermore, optimal central frequency selection is essential to
achieve the highest ergodic capacity for different variances, with
the potential for reaching tens or even hundreds of gigabits per
second (Gbps) |
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