Satellite Communications Payload and System

Braun, Teresa M.; Braun, W. R.

doi:10.1002/9781119384342

Cited by 16 publications

(8 citation statements)

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“…When it comes to the HTS, this is considered as being the best approach for backhauling 5G traffic in terms of capacity and coverage, but remains challenging regarding manufacturing cost and latency. Whilst latency and cost remain an active area of research in relation to meeting 5G requirements, several studies consider the cost of the bit per second, user downlink/ uplink, and convenience of user terminals as more critical considerations for the adoption of HTS for 5G networks [54, 55].…”

Section: New Backhaul Technologymentioning

confidence: 99%

Backhaul in 5G systems for developing countries: A literature review

2023

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The fifth-generation (5G) technology is seen to be a solution for developing countries to improve their quality of services in terms of transportation, education, health, agriculture, and other fields, thereby holding the promises of economic transformation by improving productivity and the quality of life. The paper considers some of the challenges that face operators, investors, and providers when planning to introduce 5G technology to developing countries. The main focus of this paper is the 5G transport network, in particular, the backhaul network. The 5G transport network architectural options and scenarios are discussed based on several standards and previous studies, the problems of existing infrastructures of developing countries are investigated, and new proposed technologies that may help to address those challenges are considered.1.

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Section: New Backhaul Technologymentioning

confidence: 99%

Backhaul in 5G systems for developing countries: A literature review

2023

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“…As mentioned above, it is key to find a common language for extracting insights from the CLD. Leverage analysis (Murphy & Jones, 2020) is suggested for this purpose, as well as loop analysis (Meadows, 2008;Kauffman, 1980) and system archetypes (Braun, 2002).…”

Section: Cycle 5: Bridging Towards Design Actionsmentioning

confidence: 99%

A New Research Protocol for Using System Maps in Systemic Design Research

Moons,

Noëth,

Du Bois

et al. 2023

Proc. Des. Soc.

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System maps are established tools in design practice and education as well as non-design research, both as a process and an outcome of systemic analysis and synthesis. Applying causal loop diagrams (CLD's) in (systemic) design research could be of great value to tackle the growing societal complexity. At this moment there is, however, no clear research protocol to include the rich data necessary for systemic research and ensure a scientifically valid system map in the context of design research. In this paper, we propose a protocol using CLD's as a research method and outcome in design-inclusive research. The protocol synthesises rich data from qualitative research in a way that the representation yields higher validity compared to the regular approach to systems mapping, using a process of reflection and iteration on boundary setting. An iterative process of qualitative research methods with lean validation methods was used to come to a conceptual proposal. The protocol can support systemic design researchers and practitioners to include a scientifically grounded CLD in the explorative research actions phase, thus bridging the research towards a phase of creative design actions.

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“…The large capacity of HTS can greatly reduce broadband costs. [ 1,2 ] To meet the anticipated increasing demands on the capability of supporting users, it is expected that the total system capacity of the HTS will need to be over 1Tbps and with the best cost per capacity unit. [ 3 ] Microwave integrated circuit (IC), as a commercially mature technology, has been widely applied to HTS payloads, especially in the development of radio frequency (RF) repeaters and T/R modules.…”

Section: Introductionmentioning

confidence: 99%

Chip‐Based Microwave Photonic Payload Repeater for High Throughput Satellites

Liang,

Mohammad,

Roeloffzen

et al. 2023

Laser & Photonics Reviews

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High‐throughput satellite (HTS) is an ideal way to realize cross‐regional massive, multifaceted digital exchange services, and it requires a signal processing module that can be massively multiplexed and has high flexibility. Due to the limitations of the frequency characteristics, microwave integrated circuits are difficult to meet this requirement. One solution to this problem is photonic integrated circuits (PICs). However, full‐size PIC satellite payloads containing main optoelectronic components are extremely challenging to implement on monolithic or hybrid integrated platforms. Here, the study demonstrates a hybrid integrated on‐chip microwave‐photonic satellite repeater with large‐scale multiplexing potential and high flexibility. This is a demonstration of a hybrid integration of a InP/Si3N4 external cavity laser, arrayed InP modulators, and semiconductor optical amplifiers (SOAs), as well as multifunctional Si3N4 signal processors, to fulfill a 1 × 4 Ka‐band repeater module with on‐chip arrayed frequency down‐conversion and outstanding narrowband photonic channelization. When combined with the full‐chip photonic RF repeater, broadband, highly integrated, and cost‐effective communications satellite payloads will become realizable more quickly in the near future.

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Satellite Communications Payload and System

Cited by 16 publications

References 0 publications

Backhaul in 5G systems for developing countries: A literature review

Backhaul in 5G systems for developing countries: A literature review

A New Research Protocol for Using System Maps in Systemic Design Research

Chip‐Based Microwave Photonic Payload Repeater for High Throughput Satellites

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