Modeling of First-Order Statistics of the MIMO Dual Polarized Channel at 2 GHz for Land Mobile Satellite Systems Under Tree Shadowing

Kourogiorgas, Charilaos I.; Kvičera, Milan; Skraparlis, Dimitrios; Korinek, Tomas; Sakarellos, Vasileios K.; Panagopoulos, Athanasios D.; Pechač, Pavel

doi:10.1109/tap.2014.2346186

Cited by 23 publications

(18 citation statements)

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“…Small unmanned aerial vehicle (UAV) was used as a pseudo-satellite to experimentally investigate the effect of the tree shadowing. It was shown experimentally in [57] that Loo's model offers the best accuracy among other models for the first order statistics of the received signal envelope. Furthermore, the authors also introduced inverse Gaussian (IG) distribution to model the tree shadowing [59].…”

Section: Channel Modelingmentioning

confidence: 99%

CubeSat Communications: Recent Advances and Future Challenges

Saeed¹,

Elzanaty²,

Dahrouj³

et al. 2020

Preprint

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The research in the emerging space industry is becoming more and more attractive, given the increasing number of space-related applications. One primary entity of current space research is the design of miniaturized satellites, known as CubeSats, due to their numerous applications and low design and deployment cost. The new paradigm of connected space through CubeSats enables a wide range of applications such as Earth remote sensing, space exploration, and rural connectivity. CubeSats further provide a complimentary connectivity solution to the pervasive Internet of things (IoT) networks, leading to a globally connected cyber-physical system. This paper presents a holistic overview of different aspects of CubeSat missions, and provides a thorough review on the topic, both from academic and industrial perspectives. We further present the recent advances in the area of CubeSats communications with an emphasis on constellation and coverage issues, channel modeling, modulation and coding, and networking. The paper finally identifies several future research directions on CubeSats communications, namely Internet of space things, low power long range networks, machine learning for resource allocation in CubeSats, etc.

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Section: Channel Modelingmentioning

confidence: 99%

CubeSat Communications: Recent Advances and Future Challenges

Saeed¹,

Elzanaty²,

Dahrouj³

et al. 2020

Preprint

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“…In Kourogiorgas et al, the Loo distribution is fitted to the four polarization components for various intervals of elevation angles, and the received power distribution for Earth to NGSO satellite links can be calculated based on the distribution of the elevation angles. Moreover, an airship which follows the actual paths of NGSO satellites, such as IRIDIUM and Galileo, is used to obtain the measurements.…”

Section: Antennas and Propagation Issuesmentioning

confidence: 99%

“…Moreover, an airship which follows the actual paths of NGSO satellites, such as IRIDIUM and Galileo, is used to obtain the measurements. In Figures and , the time series of elevation angles and received power for a Galileo orbit are shown, respectively, for a ground station at Stromovka park in Prague, Czech Republic. An airship was used to emulate the path of the Galileo satellite over the city of Prague.…”

Section: Antennas and Propagation Issuesmentioning

confidence: 99%

“…It can be easily observed that, at lower elevation angles in the range 20° to 40°, the shadowing phenomena and multipath effects are more severe than at high elevations. From the processing of these measurements, the Loo distribution gives the best fit . The inverse Gaussian distribution is tested for the modelling of shadowing effects in various intervals of elevation angles in Kourogiorgas et al…”

Section: Antennas and Propagation Issuesmentioning

confidence: 99%

See 1 more Smart Citation

Small satellites and CubeSats: Survey of structures, architectures, and protocols

Davoli

Kourogiorgas

Marchese

et al. 2018

Satell Commun Network

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Summary The space environment is still challenging but is becoming more and more attractive for an increasing number of entities. In the second half of the 20th century, a huge amount of funds was required to build satellites and gain access to space. Nowadays, it is no longer so. The advancement of technologies allows producing very small hardware components able to survive the strict conditions of the outer space. Consequently, small satellites can be designed for a wide set of missions keeping low design times, production costs, and deployment costs. One widely used type of small satellite is the CubeSat, whose different aspects are surveyed in the following: mission goals, hardware subsystems and components, possible network topologies, channel models, and suitable communication protocols. We also show some future challenges related to the employment of CubeSat networks.

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“…Both the left-(LHCP) and right-handed (RHCP) circularly polarized signals were transmitted from the airship towards a receiver located at two different scenarios. Unlike [21], where four different distributions were fitted to the first-order statistics of experimental data obtained previously at Stromovka Park with a low sampling rate of 100 Hz, this paper presents a method how to obtain a cumulative distribution function (CDF) of received signal levels for various non-geostationary satellite orbits based on a reference dataset for the case of azimuth-independent scenarios. Details of the experimental campaign are provided in Sec.…”

Section: Introductionmentioning

confidence: 99%