Constellations, clusters, and communication technology: Expanding small satellite access to space

Alvarez, Jennifer L.; Walls, B.

doi:10.1109/aero.2016.7500896

Cited by 74 publications

(32 citation statements)

References 2 publications

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“…While research is ongoing on this subject and new projects such as Phoenix Program by DARPA, ConeXpress, and ViviSat Mission Extension Vehicle are proposed for on-orbit servicing and retrofitting, there are currently no technologically mature options available for operating an in-orbit servicing mission "off the shelf," nor their cost-effectiveness has been demonstrated [50]. In particular, a demonstration of formation flying for the DARPA F6 program was canceled [51].…”

Section: Updatementioning

confidence: 99%

Identifying Retrofitting Opportunities for Federated Satellite Systems

Akhtyamov

Vingerhoeds

Golkar

2019

Journal of Spacecraft and Rockets

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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.

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Section: Updatementioning

confidence: 99%

Identifying Retrofitting Opportunities for Federated Satellite Systems

Akhtyamov

Vingerhoeds

Golkar

2019

Journal of Spacecraft and Rockets

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“…Increasingly, it is anticipated that a hybrid telecommunications network will evolve based on merging terrestrial and satellite capabilities to ensure secure connectivity and accessibility. Low orbit mega constellations are already in prospect, which may provide a cost effective communication solution for many more applications in the medium to long term [8].…”

Section: Use Of Satellites To Tackle These Challengesmentioning

confidence: 99%

Opportunities to use satellite technologies for asset condition monitoring of power networks under the European Space Agency's Integrated Applications Promotion programme

Downey

Garcia²,

Harrison

2017

CIRED - Open Access Proceedings Journal

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Network operators in the UK have stated their intention to target network reliability through improved procedures for asset management. This involves having a better understanding of how an asset deteriorates over time and their current health. The availability of good quality data is essential to this process. At the distribution level the majority of asset condition data comes from inspection, sometimes coupled with a form of continuous condition monitoring. Both are relatively expensive, with inspection also being very personnel-intensive. Satellites provide a variety of enabling capabilities that are applicable across many sectors. They can potentially support the inspection process of many of the assets present within distribution and transmission networks. This study presents an overview of potential satellite applications within the power industry, with particular emphasis on how they can be used for asset inspection and monitoring. A workshop was organised by European Space Agency and the Power Networks Demonstration Centre with UK network operators as participants to further explore some of the potential applications. The main areas identified are briefly outlined in this study. This is an open access article published by the IET under the Creative Commons Attribution License

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“…Although the authors do provide a review of MAC protocols, no quantitative or comparative evaluation is provided for the MAC protocols reviewed in the work. Other works discussing the applicability of (small/nano) satellites in broadband internet access, IoT, and M2M communications can be found in [6,7,8,9,10]. The mentioned works, however, do not cover specific evaluations related to MAC protocols.…”

Section: Introductionmentioning

confidence: 99%

Review and Evaluation of MAC Protocols for Satellite IoT Systems Using Nanosatellites

Ferrer

Céspedes

Becerra³

2019

Sensors

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Extending the internet of things (IoT) networks to remote areas under extreme conditions or for serving sometimes unpredictable mobile applications has increased the need for satellite technology to provide effective connectivity. However, existent medium access control (MAC) protocols deployed in commercial satellite networks were not designed to offer scalable solutions for the increasing number of devices predicted for IoT in the near future, nor do they consider other specific IoT characteristics. In particular, CubeSats—a low-cost solution for space technology—have the potential to become a wireless access network for the IoT, if additional requirements, including simplicity and low demands in processing, storage, and energy consumption are incorporated into MAC protocol design for satellite IoT systems. Here we review MAC protocols employed or proposed for satellite systems and evaluate their performance considering the IoT scenario along with the trend of using CubeSats for IoT connectivity. Criteria include channel load, throughput, energy efficiency, and complexity. We have found that Aloha-based protocols and interference cancellation-based protocols stand out on some of the performance metrics. However, the tradeoffs among communications performance, energy consumption, and complexity require improvements in future designs, for which we identify specific challenges and open research areas for MAC protocols deployed with next low-cost nanosatellite IoT systems.

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Constellations, clusters, and communication technology: Expanding small satellite access to space

Cited by 74 publications

References 2 publications

Identifying Retrofitting Opportunities for Federated Satellite Systems

Identifying Retrofitting Opportunities for Federated Satellite Systems

Opportunities to use satellite technologies for asset condition monitoring of power networks under the European Space Agency's Integrated Applications Promotion programme

Review and Evaluation of MAC Protocols for Satellite IoT Systems Using Nanosatellites

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