Performance analysis for the forward link of multiuser satellite communication systems

Guo, Yongan; Kong, Huaicong; Huang, Qingquan; Lin, Min; Zhu, Wei-Ping; Amindavar, Hamidreza

doi:10.1002/sat.1401

Cited by 6 publications

(4 citation statements)

References 25 publications

(47 reference statements)

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“…It is this band which will connect the lower bands of existing frequencies to those of higher ones. High-speed connections with reasonably good coverage can be obtained due to sufficient open frequency space delivery [41,42].…”

Section: Bandmentioning

confidence: 99%

Low Altitude Satellite Constellation for Futuristic Aerial-Ground Communications

Sabuj¹,

Alam²,

Haider³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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This paper discusses the significance and prospects of low altitude small satellite aerial vehicles to ensure smooth aerial-ground communications for next-generation broadband networks. To achieve the generic goals of fifthgeneration and beyond wireless networks, the existing aerial network architecture needs to be revisited. The detailed architecture of low altitude aerial networks and the challenges in resource management have been illustrated in this paper. Moreover, we have studied the coordination between promising communication technologies and low altitude aerial networks to provide robust network coverage. We talk about the techniques that can ensure userfriendly control and monitoring of the low altitude aerial networks to bring forth wireless broadband connectivity to a new dimension. In the end, we highlight the future research directions of aerial-ground communications in terms of access technologies, machine learning, compressed sensing, and quantum communications.

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Section: Bandmentioning

confidence: 99%

Low Altitude Satellite Constellation for Futuristic Aerial-Ground Communications

Sabuj¹,

Alam²,

Haider³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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“…When the ratio of the diameter of the receiving antenna to the wavelength is less than 50, the gain of the antenna sidelobes is not greater than the following formula [16,17] […”

Section: Satellite Communication Earth Station Array Modelmentioning

confidence: 99%

SATCOM Earth Station Arrays Anti-Jamming Based on MVDR Algorithm

Liu

Zhao

2023

Applied Sciences

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In modern life, a large amount of information is transmitted through satellites. The anti-jamming ability of satellite communication earth stations is the basis for ensuring the smooth flow of information. In the case that multiple small earth stations cannot communicate due to jamming, the minimum variance distortionless response (MVDR) algorithm based on reflector antenna array is proposed. Firstly, the gain expression of satellite communication earth station antenna is derived, and the mathematical model of the received signal of the reflector antenna array is established. Then, the MVDR beamforming algorithm based on the reflector antenna is proposed and applied to the satellite communication earth station reflector antenna array, and the anti-jamming capability of the reflector antenna array using this algorithm is analyzed through simulation. The simulation results show that the earth station reflector antenna array using MVDR algorithm can effectively achieve array gain of the direction of the satellite signal, suppress the jamming signals, increase the output signal to interference plus noise ratio (SINR) of the reflector antenna array, and increase the output signal to jamming plus noise ratio with the increase in the number of snapshots.

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“…Additionally, low Earth-orbit satellites, governed by a "firstcome-first-served" rule, represent a renewable and strategic asset, influencing the future developmental prospects of nations worldwide. Consequently, competition is intense among countries in the field of near-Earth communication [1][2][3][4][5]. The satellite-based communication system, characterized by satellite-ground interaction, is extensively used, not only in satellite communication per se, but also in remote-sensing measurements, and various other fields [6].…”

Section: Introductionmentioning

confidence: 99%

Catalyzing satellite communication: A 20W Ku-Band RF front-end power amplifier design and deployment

Chen,

Wang,

Zhang

et al. 2024

PLoS ONE

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This paper presents a groundbreaking Ku-band 20W RF front-end power amplifier (PA), designed to address numerous challenges encountered by satellite communication systems, including those pertaining to stability, linearity, cost, and size. The manuscript commences with an exhaustive discussion of system design and operational principles, emphasizing the intricacies of low-noise amplification, and incorporating key considerations such as noise factors, stability analysis, gain, and gain flatness. Subsequently, an in-depth study is conducted on various components of the RF chain, including the pre-amplification module, driver-amplification module, and final-stage amplification module. The holistic design extends to the inclusion of the display and control unit, featuring the power-control module, monitoring module, and overall layout design of the PA. It is meticulously tailored to meet the specific demands of satellite communication. Following this, a thorough exploration of electromagnetic simulation and measurement results ensues, providing validation for the precision and reliability of the proposed design. Finally, the feasibility of that design is substantiated through systematic system design, prototype production, and exhaustive experimental testing. It is noteworthy that, in the space-simulation environmental test, emphasis is placed on the excellent performance of the Star Ku-band PA within the 13.75GHz to 14.5GHz frequency range. Detailed power scan measurements reveal a P1dB of 43dBm, maintaining output power flatness < ± 0.5dBm across the entire frequency and temperature spectrum. Third-order intermodulation scan measurements indicate a third-order intermodulation of ≤ -23dBc. Detailed results of power monitoring demonstrate a range from +18dBm to +54dBm. Scans of spurious suppression and harmonic suppression, meanwhile, show that the PA evinces spurious suppression ≤ -65dBc and harmonic suppression ≤ -60dBc. Rigorous phase-scan measurements exhibit a phase-shift adjustment range of 0° to 360°, with a step of 5.625°, and a phase-shift accuracy of 0.5dB. Detailed data from gain-scan measurements show a gain-adjustment range of 0dB to 30dB, with a gain flatness of ± 0.5dB. Attenuation error is ≤ 1%. These test parameters perfectly align with the practical application requirements of the technical specifications. When compared to existing Ku-band PAs, our design reflects a deeper consideration of specific requirements in satellite communication, ensuring its outstanding performance and uniqueness. This PA features good stability, high linearity, low cost, and compact modularity, ensuring continuous and stable power output. These features position the proposed system as a leader within the market. Successful orbital deployment not only validates its operational stability; it also makes a significant contribution to the advancement of China’s satellite PA technology, generating positive socio-economic benefits.

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Performance analysis for the forward link of multiuser satellite communication systems

Cited by 6 publications

References 25 publications

Low Altitude Satellite Constellation for Futuristic Aerial-Ground Communications

Low Altitude Satellite Constellation for Futuristic Aerial-Ground Communications

SATCOM Earth Station Arrays Anti-Jamming Based on MVDR Algorithm

Catalyzing satellite communication: A 20W Ku-Band RF front-end power amplifier design and deployment

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