Distributed Earth Satellite Systems: What Is Needed to Move Forward?

Selva, Daniel; Golkar, Alessandro; Korobova, Olga; Cruz, Ignasi Lluch i; Collopy, Paul; Weck, Olivier L. de

doi:10.2514/1.i010497

Cited by 70 publications

(47 citation statements)

References 118 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…e transmission data rate is 100 kbps, the operating frequency is S-band, and f � 2.2 GHz [30]. e gains of the transmit and receive antennas are 1 [31]. Other parameters are listed in Table 2 and one considered topology with L1 � 5 is shown in Figure 3.…”

Section: Simulation Analysismentioning

confidence: 99%

Transmit Power Allocation with Connectivity Probability for Multi-QoS in Cluster Flight Spacecraft Network

Yan

et al. 2020

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

In this paper, we investigate the transmit power allocation problem to minimize the average packet error rate at the access point in the cluster flight spacecraft network, which adopts the CSMA/CA channel access mechanism. First, the node mobility, nodal distance distribution, and probabilistic adjacency matrix were formulated for cluster flight spacecraft network based on twinsatellite mode. en, the optimization-theoretic model described the optimized transmit power allocation strategy and its implementation algorithm was proposed. And the problem of minimizing the packet error rate of the cluster flight spacecraft network system can be converted into maximizing the expectation of the binary probabilistic adjacency matrix, i.e., maximizing the sum of the nondiagonal elements in the probabilistic adjacency matrix. Due to discreteness of nodal distance distribution, Monte Carlo method was applied to solve the transmit power allocation problem. Yet importantly, the influence of node transmit power on the QoS performance of cluster flight spacecraft network was simulated and analyzed under the assumption of finite overall network transmit power and low traffic load. Finally, the results show that the pocket error rate increases with the provided traffic load, but the pocket error rate hardly changes with the same traffic load in different sequential time slots of any orbital hyperperiod or in the same time slot of different orbital hyperperiods, and by maximizing the sum of the nondiagonal elements in the probabilistic adjacency matrix, the pocket error rate minimum is achieved for a given total network transmit power at any time slot for cluster flight spacecraft network.

show abstract

Section: Simulation Analysismentioning

confidence: 99%

Transmit Power Allocation with Connectivity Probability for Multi-QoS in Cluster Flight Spacecraft Network

Yan

et al. 2020

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…Distributed computing arrays in orbit have also been proposed to enable new applications requiring reactive processing of raw data in orbit [15]. Table 1 provides a detailed comparison of federated, collaborative, fractionated concepts for satellite systems [16].…”

Section: Related Literature: Informing the Technicalmentioning

confidence: 99%

“…Technologies such as software-defined radio (SDR) and optical communications are considered as emerging enabling technologies for FSS [16,[27][28][29]. In particular, SDR technology provides the ability to receive and transmit various modulation techniques and to easily change operating frequencies even after system deployment using a common set of hardware [27,30].…”

Section: Related Literature: Informing the Technicalmentioning

confidence: 99%

Identifying Retrofitting Opportunities for Federated Satellite Systems

Akhtyamov

Vingerhoeds

Golkar

2019

Journal of Spacecraft and Rockets

Self Cite

View full text Add to dashboard Cite

This paper aims at identifying retrofitting possibilities to incorporate existing spacecraft into a network of federated satellite systems. The paper presents a systematic review of possible retrofitting options, such as direct modifications including replacement and addition of interfaces, and indirect modifications through the addition of intermediary federated negotiators. The paper considers existing frequency regulations for the analysis in the technical domain, but does not take into consideration how complex or time-consuming any legislative changes might be. Although the paper concludes that direct modifications of existing satellites are nonfeasible from a technical point of view, it identifies a possible scenario of retrofitting by adding intermediary negotiator satellites. The link budget for the intersatellite link between an existing satellite mission, such as SPOT-6, and a conceptual satellite negotiator was estimated. The work concludes that from a link budget point of view and existing technology, such a configuration can provide a slant range from several hundred to thousands of kilometers. The work defines models for trade-off analysis identifying correlations between satellite negotiator parameters and the number of covered satellites. The paper concludes proposing several possible satellite negotiator architectures and high-level technical requirements based on analysis of characteristics of existing and planned satellites.

show abstract

“…In line with the current trends in the aerospace industry, small spacecraft platforms and miniaturized instrument technologies are deemed essential enablers for these innovative architectures. Several studies [1][2][3] Nevertheless, the design of fully-fledged DSS still poses multiple technological and fundamental challenges [4] (e.g. formation flying, on-board processing and data fusion, inter-satellite networks, autonomous mission management, etc.)…”

Section: Introductionmentioning

confidence: 99%

Architectural Optimization Framework for Earth-Observing Heterogeneous Constellations: Marine Weather Forecast Case

Araguz¹,

Llaveria²,

Lancheros³

et al. 2019

Journal of Spacecraft and Rockets

Self Cite

View full text Add to dashboard Cite

Earth observation satellite programs are currently facing, for some applications, the need to deliver hourly revisit times, sub-kilometric spatial resolutions and near-real-time data access times. These stringent requirements, combined with the consolidation of small-satellite platforms and novel distributed architecture approaches, are stressing the need to study the design of new, heterogeneous and heavily networked satellite systems that can potentially replace or complement traditional space assets. In this context, this paper presents partial results from ONION, a research project devoted to studying distributed satellite systems and their architecting characteristics. A design-oriented framework that allows selecting optimal architectures for a given user needs is presented in this paper. The framework has been used in the study of a strategic use-case and its results are hereby presented. From an initial design space of 5586 potential architectures, the framework has been able to pre-select 28 candidate designs by an exhaustive analysis of their performance and by quantifying their quality attributes. This very

show abstract

Distributed Earth Satellite Systems: What Is Needed to Move Forward?

Cited by 70 publications

References 118 publications

Transmit Power Allocation with Connectivity Probability for Multi-QoS in Cluster Flight Spacecraft Network

Transmit Power Allocation with Connectivity Probability for Multi-QoS in Cluster Flight Spacecraft Network

Identifying Retrofitting Opportunities for Federated Satellite Systems

Architectural Optimization Framework for Earth-Observing Heterogeneous Constellations: Marine Weather Forecast Case

Contact Info

Product

Resources

About