Spectrum Sharing for Coexistence of Fixed Satellite Services and Frequency Hopping Tactical Data Link

Baek, Hoki; Lim, Jaesung

doi:10.1109/jsac.2016.2605979

Cited by 20 publications

(10 citation statements)

References 9 publications

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“…Regarding the practical issues of HSTNs, an inexpensive nonlinear PA is adopted and imperfect CSIT is assumed. In this case, there are two interfering links [4], [17]. One exists between the satellite and the terrestrial UT, and the other exists between the terrestrial base station (BS) and the satellite UT.…”

Section: System Modelmentioning

confidence: 99%

“…The spectrum sharing technique can not only alleviate the "spectrum scarcity" problem, but also provide an opportunity for coordinated system design [1]- [3]. Under the spectrum sharing regime, inter-satellite-terrestrial interference is inevitable, which usually leads to considerable performance degradation [4], [5]. Towards this end, beamforming schemes should be tailored for hybrid satellite-terrestrial scenarios [6], rather than only for satellite or terrestrial scenario.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Beamforming for Hybrid Satellite Terrestrial Networks With Nonlinear PA and Imperfect CSIT

Liu

Feng

Chen

et al. 2020

IEEE Wireless Commun. Lett.

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In hybrid satellite-terrestrial networks (HSTNs), spectrum sharing is crucial to alleviate the "spectrum scarcity" problem. Therein, the transmit beams should be carefully designed to mitigate the inter-satellite-terrestrial interference. Different from previous studies, this work considers the impact of both nonlinear power amplifier (PA) and large-scale channel state information at the transmitter (CSIT) on beamforming. These phenomena are usually inevitable in a practical HSTN. Based on the Saleh model of PA nonlinearity and the large-scale multibeam satellite channel parameters, we formulate a beamforming optimization problem to maximize the achievable rate of the satellite system while ensuring that the inter-satellite-terrestrial interference is below a given threshold. The optimal amplitude and phase of desired beams are derived in a decoupled manner. Simulation results demonstrate the superiority of the proposed beamforming scheme.Index Terms-Beamforming, hybrid satellite-terrestrial network, large-scale channel state information, nonlinear power amplifier, spectrum sharing.

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Section: System Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Beamforming for Hybrid Satellite Terrestrial Networks With Nonlinear PA and Imperfect CSIT

Liu

Feng

Chen

et al. 2020

IEEE Wireless Commun. Lett.

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“…As an important part of the military information equipment in the new military transformation, the tactical data link has the name of the ''nerve center'' in the command automation system. It is characterized by strong real-time data transmission, fast information transmission, and high degree of automation [1]. The tactical data link has become the key to improving combat capabilities of the combat system and the overall combat capability of the weapon system in modern military transformation.…”

Section: Introductionmentioning

confidence: 99%

Research on Multi-Level Priority Polling MAC Protocol in FPGA Tactical Data Chain

Ding

Bao

et al. 2019

IEEE Access

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Under the tide of informationization, information warfare has become the development direction of military transformation. As one of the important signs of the development of information warfare, the tactical data chain overcomes the shortcomings of the traditional warfare platforms and wins the opportunity to master the battlefield situation, improve decision-making efficiency, and enhance the cooperative combat capability. The access control protocol determines how the user sites share the channel resources in the tactical data link system, which has an important impact on system performance and has always been a hot issue in tactical data link research. A multi-level priority polling MAC protocol (MPPMP) is proposed for the actual demand of multiuser multi-priority transmission control in tactical data link systems. The protocol can control the arrival rate of user packets at all levels based on the priority weight matrix named P which based on the user's priority level in the tactical data link system. The simulation results show that the MPPMP can meet the multi-priority transmission control requirements of each user in the system and overcomes the problem that the traditional polling MAC protocol has a single control function. In addition, the design and implementation of MPPMP are implemented by FPGA. The feasibility and correctness of the design are verified by the simulation test and statistical analysis. INDEX TERMS Tactical data chain, priority weight, MAC protocol, polling, FPGA. HONGWEI DING was born in 1964. He is currently a Professor with Yunnan University and a Master Tutor. His main research interests include communication and information systems, network and communication engineering, polling multiple access communication theory, and random multiple access communication systems.

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“…Najett et al [9] have analyzed the interference of LDACS on DME in the time domain based on a Monte Carlo process, and obtained the result that their coexistence is possible, however, It takes a lot of time for MCM to analyze interference to ensure the accuracy. Many researchers have studied interference between two or more periodic pulse signals using the mean probability of pulse collision [10,11], but they have not studied the impact of PRF and initial time on the probability of pulse collision. This paper presents a PPOM to calculate the overlap probability between two or more periodic pulse signals.…”

Section: Introductionmentioning

confidence: 99%

A Method for the Analysis of Interference from DME to ATCRBS in the Time Domain

et al. 2019

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Analysis of the coexistence of two or more types of equipment is increasingly important. However, at present studies on the analysis method in the time domain are scant. Therefore, the aim of this paper is to explore the characteristics of signals and relations between interfering and desired signals in the time domain. Based on the periodicity of a signal, this paper presents a Periodic Pulse Overlap Method (PPOM). Using PPOM to analyze the interference from Distance Measuring Equipment (DME) to Air Traffic Control Radar Beacon System (ATCRBS) in the time domain, we obtain almost the same result as that based on the Monte Carlo Method (MCM). Furthermore, we discover the measures to reduce or even avoid interference, such as changing the Pulse Recurrence Frequency (PRF), adjusting the difference of initial time, and switching the operating modes of the equipment.

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Spectrum Sharing for Coexistence of Fixed Satellite Services and Frequency Hopping Tactical Data Link

Cited by 20 publications

References 9 publications

Optimal Beamforming for Hybrid Satellite Terrestrial Networks With Nonlinear PA and Imperfect CSIT

Optimal Beamforming for Hybrid Satellite Terrestrial Networks With Nonlinear PA and Imperfect CSIT

Research on Multi-Level Priority Polling MAC Protocol in FPGA Tactical Data Chain

A Method for the Analysis of Interference from DME to ATCRBS in the Time Domain

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