Site Diversity in Downlink Optical Satellite Networks Through Ground Station Selection

Erdoğan, Eylem; Altunbaş, İbrahim; Kurt, Güneş Karabulut; Bellemare, Michel; Lamontagne, Guillaume; Yanıkömeroğlu, Halim

doi:10.1109/access.2021.3059641

Cited by 47 publications

(34 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where α k , β k , and η k indicate the shape parameters and the scale parameter, respectively, which depend on the scintillation index [13]. For the DL communication, the scintillation index σ 2 I DL at H can be written as…”

Section: Channels and System Modelmentioning

confidence: 99%

“…Thus, for UL eavesdropping, the SOP is expressed on the basis of (13), where the PDF of γ E can be derived from ( 2) with respect to γ as…”

Section: B Secrecy Outage Probabilitymentioning

confidence: 99%

“…Then, by substituting ( 2) and ( 14) into (13), we obtain the equation given on the top of the next page as (15). Finally, after some mathematical derivations and by using [20, 3.478.1], the final expression of SOP for UL eavesdropping can be written as…”

Section: B Secrecy Outage Probabilitymentioning

confidence: 99%

See 2 more Smart Citations

Optical Satellite Eavesdropping

Yahia¹,

Erdoğan²,

Kurt³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

In recent years, satellite communication (SatCom) systems have been widely used for navigation, broadcasting application, disaster recovery, weather sensing, and even spying on the Earth. As the number of satellites is highly increasing and with the radical revolution in wireless technology, eavesdropping on SatCom will be possible in next-generation networks. In this context, we introduce the satellite eavesdropping approach, where an eavesdropping satellite can intercept optical communications established between a low Earth orbit (LEO) satellite and a high altitude platform station (HAPS). Specifically, we propose two practical eavesdropping scenarios for satellite-to-HAPS (downlink) and HAPS-to-satellite (uplink) optical communications, where the eavesdropper satellite can eavesdrop on the transmitted signal or the received signal. To quantify the secrecy performance of the scenarios, the average secrecy capacity (ASC) and secrecy outage probability (SOP) expressions are derived and validated with Monte Carlo (MC) simulations. We observe that turbulenceinduced fading significantly impacts the secrecy performance of free-space optical (FSO) communication.

show abstract

Section: Channels and System Modelmentioning

confidence: 99%

“…Thus, for UL eavesdropping, the SOP is expressed on the basis of (13), where the PDF of γ E can be derived from ( 2) with respect to γ as…”

Section: B Secrecy Outage Probabilitymentioning

confidence: 99%

See 1 more Smart Citation

Optical Satellite Eavesdropping

Yahia¹,

Erdoğan²,

Kurt³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…where Γ(•) indicates the Gamma function and g 1 (α H1,H2 , β H1,H2 ) is the α H1,H2 and β H1,H2 dependent constant variable given by [23] g…”

Section: ) Inter-haps Communicationmentioning

confidence: 99%

HAPS-assisted Hybrid RF-FSO Multicast Communications: Error and Outage Analysis

Yahia¹,

Erdoğan²,

Kurt³

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Multicast routing is considered a promising approach for real-time applications to address the massive data traffic demands. In this work, we study the outage probability of a multicast downlink communication network for non-terrestrial communication systems. More precisely, we propose two practical use-cases. In the former model, we propose a high altitude platform station (HAPS) aided mixed radio frequency (RF)/ free-space optical (FSO)/RF communication scheme where a terrestrial ground station intends to communicate with a cluster of nodes through two stratospheric HAPS systems. In the latter model, we assume that the line of sight (LOS) connectivity is inaccessible between the two HAPS systems due to high attenuation caused by large propagation distances. Thereby, we propose a low Earth orbit (LEO) satellite-aided mixed RF/FSO/FSO/RF communication. For the proposed scenarios, outage probability expressions are derived and validated with Monte Carlo (MC) simulations under different conditions.

show abstract

“…Since HAP situates above the clouds, the optical beam from satellite to HAP is less sensitive to clouds and atmospheric turbulence. However, the laser link between aerial relay stations like HAP and ground stations is significantly affected by clouds, and atmospheric turbulence [4] [6]. Hence, RF backup link becomes an efficient solution due to less susceptibility to adverse issues of FSO link [3].…”

Section: Introductionmentioning

confidence: 99%

Average Transmission Rate and Outage Performance of Relay-Assisted Satellite Hybrid FSO/RF Systems

Nguyen¹

2021

Preprint

View full text Add to dashboard Cite

<div> <div> <div> <p>This paper proposes a rate adaptation design for high altitude platform (HAP)-aided relaying satellite hybrid free-space optical/radio-frequency (FSO/RF) systems. The design allows switching between two links gradually to reduce the fre- quent link switching in error-prone environments of conventional fixed-rate hybrid FSO/RF systems. System performance metrics, including average transmission rate and outage probability, are analytically studied under the presence of clouds and fading of FSO and RF channels modeled respectively by Gamma-Gamma and Rician distributions. The numerical results quantitatively highlight the effectiveness of our proposed systems over the conventional ones. Moreover, Monte-Carlo simulations are also performed to validate the accuracy of the analytical model. </p> </div> </div> </div>

show abstract

Site Diversity in Downlink Optical Satellite Networks Through Ground Station Selection

Cited by 47 publications

References 25 publications

Optical Satellite Eavesdropping

Optical Satellite Eavesdropping

HAPS-assisted Hybrid RF-FSO Multicast Communications: Error and Outage Analysis

Average Transmission Rate and Outage Performance of Relay-Assisted Satellite Hybrid FSO/RF Systems

Contact Info

Product

Resources

About