Performance Analysis of Satellite Communication System Under the Shadowed-Rician Fading: A Stochastic Geometry Approach

Jung, Dong‐Hyun; Byun, Woo‐Jin; Choi, Junil

doi:10.1109/tcomm.2022.3142290

Cited by 68 publications

(38 citation statements)

References 36 publications

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“…nearest satellites [9]. The distance D from a network user to its closest LEO satellite is a random variable.…”

Section: Statistical Resultsmentioning

confidence: 99%

“…Various evaluation methodologies have been proposed to obtain the performance of LEO satellite communication networks. For satellite layout, some studies used probabilistic approaches including a binomial point process [6]- [9]. In contrast to the simulation-based approach, the benefits of employing such analytical models lie in the fact that they presents large-scale behaviors as functions of network key parameters such as the mean number of satellites, their altitudes, etc.…”

Section: A Motivation and Backgroundmentioning

confidence: 99%

“…In contrast to the simulation-based approach, the benefits of employing such analytical models lie in the fact that they presents large-scale behaviors as functions of network key parameters such as the mean number of satellites, their altitudes, etc. Nevertheless, the binomial satellite point processes in [6]- [9] were not able to incorporate the fact that the satellites are located on approximately circular trajectories around the earth, namely their orbits. In this paper, we provide a tractable model that incorporates this fact in the multi-altitude LEO satellite case, by generalizing the work in Chang-Sik Choi is with Hongik University, South Korea.…”

Section: A Motivation and Backgroundmentioning

confidence: 99%

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Cox Point Processes for Multi-Altitude LEO Satellite Networks

Choi¹,

Baccelli²

2023

Preprint

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We propose a simple analytical approach to describe the locations of low earth orbit (LEO) satellites based on a Cox point process. We develop a variable-altitude Poisson orbit process by accounting for the fact that satellites are always located on circular orbits and these orbits may have different altitudes. Then, the satellites on these orbits are modeled as the Poisson point processes conditionally on the orbit process. For this model, we derive the distribution of the distance to the nearest visible satellite, the outage probability, the Laplace functional of the proposed satellite Cox point process, and the Laplace transform of the interference under a general fading. The derived statistics allow one to evaluate the performance of such LEO satellite communication systems as functions of network parameters.

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“…nearest satellites [9]. The distance D from a network user to its closest LEO satellite is a random variable.…”

Section: Statistical Resultsmentioning

confidence: 99%

Section: A Motivation and Backgroundmentioning

confidence: 99%

Section: A Motivation and Backgroundmentioning

confidence: 99%

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Cox Point Processes for Multi-Altitude LEO Satellite Networks

Choi¹,

Baccelli²

2023

Preprint

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“…Proof: See Appendix E. Remark 3. Since the integrands in (26) decrease with the CDF of s and increase with the CDF of ( , ) e * , the ergodic secrecy capacity increases as s increases or ( , ) e * decreases, which is expected from the definition of the secrecy rate (25).…”

Section: B Ergodic Secrecy Capacitymentioning

confidence: 90%

“…The shadowed-Rician fading model is widely adopted for satellite channels, which has been proved its suitability in various frequency bands, e.g., the UHF-band, L-band, S-band, and Ka-band[25]-[27].…”

mentioning

confidence: 99%

When Satellites Work as Eavesdroppers

Jung,

Ryu,

Choi

2022

Preprint

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This paper considers satellite eavesdroppers in uplink satellite communication systems where the eavesdroppers are randomly distributed at arbitrary altitudes according to homogeneous binomial point processes and attempt to overhear signals that a ground terminal transmits to a serving satellite. Noncolluding eavesdropping satellites are assumed, i.e., they do not cooperate with each other, so that their received signals are not combined but are decoded individually. Directional beamforming with two types of antennas: fixed-and steerable-beam antennas, is adopted at the eavesdropping satellites. The possible distribution cases for the eavesdropping satellites and the distributions of the distances between the terminal and the satellites are analyzed. The distributions of the signal-to-noise ratios (SNRs) at both the serving satellite and the most detrimental eavesdropping satellite are derived as closed-form expressions. The ergodic and outage secrecy capacities of the systems are derived with the secrecy outage probability using the SNR distributions. Simpler approximate expressions for the secrecy performance are obtained based on the Poisson limit theorem, and asymptotic analyses are also carried out in the high-SNR regime. Monte-Carlo simulations verify the analytical results for the secrecy performance. The analytical results are expected to be used to evaluate the secrecy performance and design secure satellite constellations by considering the impact of potential threats from malicious satellite eavesdroppers.

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