Rain Attenuation Analysis of Ka Band Ship-borne Satellite Communication Station In Indian Ocean and Pacific Ocean

Wang, Jing; Wang, Linhao; Xu, Ming

doi:10.1109/icicsp50920.2020.9232069

Cited by 3 publications

(4 citation statements)

References 1 publication

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“…ese atmospheric and dust impairments can seriously affect satellite-to-Earth links at high frequencies, which are often above 10 GHz. Equations ( 5)-( 9) represent losses (attenuations) of rain, gasses, clouds, scintillation, and dust, respectively [33,38,39,45,46]:…”

Section: Atmospheric Effects Calculationmentioning

confidence: 99%

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Predicting Joint Effects on CubeSats to Enhance Internet of Things in GCC Region Using Artificial Neural Network

Almalki

Soufiene

2021

Mobile Information Systems

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Satellite telecommunication systems promise to bridge digital gaps and deliver wireless communication services to any corner of the world. However, despite satellites’ global connectivity and wide footprint, still atmospheric and dust impairments are open challenges that face satellite systems, especially at high-frequency bands in arid and semiarid regions. Therefore, this paper aims to predict joint effects of atmospheric and dust attenuations in Gulf Cooperation Council (GCC) countries on CubeSat communications using Artificial Neural Network (ANN). The prediction model has been carried out using a massive Multiple-Input Multiple-Output (MIMO) antenna payload at K-frequency Bands. Consider these joint effects have positive relations in calculating satellites link margin, which leads to obtaining efficient communication system, delivering better quality of service (QoS), and enhancing Internet of Things (IoT) connectivity, or even Internet of Space Things (IoST). Predicated results infer that the ANN attenuation predictions, along with the 5G MIMO antenna on-board the CubeSat, offer much promise channel model for satellite communications, which in turn leads to not only supporting IoT connectivity but also reducing power consumption, thus enhancing lifetime of CubeSat. Also, this study can provide a reference for CubeSat engineers to guarantee large-capacity communication.

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Section: Atmospheric Effects Calculationmentioning

confidence: 99%

“…is paper aims to estimate rain attenuation on satellite links using the ITU-R model in South Africa. Further, Wang et al [33] gave rain attenuation analysis of the Ka-Band satellite communication in the Indian and Pacific Oceans. Reasonable results of the ITU-R model in predicting rain attenuation have been presented.…”

Section: Introductionmentioning

confidence: 99%

Predicting Joint Effects on CubeSats to Enhance Internet of Things in GCC Region Using Artificial Neural Network

Almalki

Soufiene

2021

Mobile Information Systems

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“…In the downlink of LEO satellite using Ka band (26.5–40 GHz), 26 we assume that the LEO satellite signal is sent directly to the user terminal. According to the degree of LEO satellite fading, the fading can be divided into three fading cases: light shadow (LS), average shadow (AS), and high shadow (HS).…”

Section: System Modelmentioning

confidence: 99%

“…In the downlink of LEO satellite using Ka band (26.5-40 GHz), 26 we assume that the LEO satellite signal is sent directly to the user terminal.…”

Section: System Modelmentioning

confidence: 99%

The performance analysis of NOMA in LEO satellite rain attenuation and fading hybrid channel

Ning

Yang

Chen

et al. 2021

Satell Commun Network

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In the fifth-generation (5G) and future sixth-generation (6G) networks, improving spectral efficiency and system capacity is still the main concern. Adding LEO satellite to the construction of 5G and 6G can make the network structure three-dimensional, which lets the network construction get rid of the limitation of ground space propagation distance and makes the wider area enjoy the convenience of 5G and 6G. However, due to the large link distance between space and the ground, the communication of LEO satellite in Ka band is greatly affected by rain attenuation and shadow fading. In order to improve the ergodic capacity of LEO satellite downlink, this paper attempts to apply nonorthogonal multiple access (NOMA) to hybrid channels with rainfall fading and shadow fading. In the simulation results, the ergodic capacity of orthogonal frequency division multiple access (OFDMA) and NOMA is compared, and it is found that the system capacity of hybrid channel can be improved by increasing the power allocation factor of NOMA. The experiments have studied the influence of LEO satellite's orbital height, fading degree, and transmission power in the communication link on the performance of LEO satellite system in this paper.The experimental results show that the lower the orbit height is, the better system performance will become under the same fading degree. Moreover, the energy consumed gradually decreases with the transmission power becoming small.

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UAV Communication Recovery under Meteorological Conditions

Song

Huo

Liang

et al. 2023

Drones

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Our study proposes a UAV communications recovery strategy under meteorological conditions based on a ray tracing simulation of excessive path loss in four distinct three-dimensional (3D) urban environments. We start by reviewing the air-to-ground propagation loss model under meteorological conditions, as well as the specific attenuation of rain, fog, and snow, and we propose a new expression for line-of-sight (LoS) probability. Using the two frequency bands of 28 GHz and 71 GHz, we investigate the impact of specific attenuation caused by different weather conditions and analyze the relationship between the radius of the UAV coverage area and the elevation angle. Furthermore, we investigate the effects of the rainfall rate, liquid water density, and snowfall rate on the maximum coverage area and optimal height of the UAV. Eventually, we propose a strategy that involves compensating for the maximum path loss and adjusting the UAV’s position to recover the coverage of the UAV to ground users. Our results show that rain has the greatest impact on the UAV’s coverage area and optimum height among the three types of weather conditions. For various weather conditions, relative to Region 1, the percentage reduction in the maximum coverage radius of Region 2 to Region 4 increases gradually, and the extent of each increase is approximately 10%. Moreover, after adding the compensated path loss, the coverage radius of the UAV in the four regions is restored to a value slightly larger than that before the rain. In addition, rain caused the greatest reduction in UAV coverage for suburban environments and the lowest for high-rise urban environments.

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Rain Attenuation Analysis of Ka Band Ship-borne Satellite Communication Station In Indian Ocean and Pacific Ocean

Cited by 3 publications

References 1 publication

Predicting Joint Effects on CubeSats to Enhance Internet of Things in GCC Region Using Artificial Neural Network

Predicting Joint Effects on CubeSats to Enhance Internet of Things in GCC Region Using Artificial Neural Network

The performance analysis of NOMA in LEO satellite rain attenuation and fading hybrid channel

UAV Communication Recovery under Meteorological Conditions

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