High Data Rate Architecture (HiDRA)

Hylton, Alan; Raible, Daniel

doi:10.2514/6.2016-5756

Cited by 10 publications

(5 citation statements)

References 8 publications

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“…2 A proof that the coefficients a i of the parameters must be ±1 or 0 is given in Theorem 1 of the appendix. 3 In reality, since the roots are approximated, one has to approximate containment of the root in the tropical hypersurface of the tropical polynomial. 4 Not every point on a hyperplane is in the final boundaries between cells.…”

Section: A Tropical-time Transformmentioning

confidence: 99%

Tropical Geometric Route Decision-Making in Simulated Lunar Gateway Communications

Cleveland

Short

Hylton

2022

2022 IEEE International Performance, Computing, and Communications Conference (IPCCC)

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Communications networks involving space systems are complex and evolve over time. Orbital mechanics, light propagation, and asset availability are some characteristics that dictate the state of the space network over time, which means that traditional routing methods relying on e.g. Open Shortest Path First (OSPF) cannot be expected to work. This is mainly because traditional routing algorithms assume that the network parameters are not themselves dependent on time, and make assumptions regarding end-to-end connectivity. In order for a routing algorithm to work in a space network, the algorithm must, among other things, account for the fact that the links are constantly changing over time; rather than forwarding and dropping, routers must also be able to store data. In this paper, the authors propose a new method for computing optimal routes through a space network using tropical geometry. This method determines the times at which the single-source shortest-path (SSSP) tree changes using the Joswig algorithm [1]. The efficacy of this method is demonstrated through simulation using orbital analysis software.

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Section: A Tropical-time Transformmentioning

confidence: 99%

Tropical Geometric Route Decision-Making in Simulated Lunar Gateway Communications

Cleveland

Short

Hylton

2022

2022 IEEE International Performance, Computing, and Communications Conference (IPCCC)

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“…The High-rate Delay Tolerant Networking (HDTN) project was developed by NASA Glenn Research Center [15]. HDTN is focused on developing a performance optimized, modular DTN architecture capable of supporting rates of 1 Gigabit per second and greater [16][17][18][19]. Similar to ION, HDTN supports Bundle Protocol version 6 and 7, LTP, CGR, file transfer applications, and related tools.…”

Section: Dtn Overviewmentioning

confidence: 99%

“…The most current iteration of the P4 language and abstraction specification is P4 16 , introduced in 2016. The P4 language has a core library that provides a minimal set of functionality by design.…”

Section: Appendix a Overview Of P4mentioning

confidence: 99%

Towards Software-Defined Delay Tolerant Networks

Booth

Dudukovich

2022

Network

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This paper proposes a Software-Defined Delay Tolerant Networking (SDDTN) architecture as a solution to managing large Delay Tolerant Networking (DTN) networks in a scalable manner. This work is motivated by the planned deployments of large DTN networks on the Moon and beyond in deep space. Current space communication involves relatively few nodes and is heavily deterministic and scheduled, which will not be true in the future. It is unclear how these large space DTN networks, consisting of inherently intermittent links, will be able to adapt to dynamically changing network conditions. In addition to the proposed SDDTN architecture, this paper explores data plane programming and the Programming Protocol-Independent Packet Processors (P4) language as a possible method of implementing this SDDTN architecture, enumerates the challenges of this approach, and presents intermediate results.

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“…Broadcom's Tomahawk, Barefoot's Tofino, etc.) into coherent, high-rate platforms that might be capable of operating in space [7].…”

Section: Packetized Data and On-board Switchingmentioning

confidence: 99%

A Delay Tolerant Networking-Based Approach to a High Data Rate Architecture for Spacecraft

Hylton

Raible

Clark

2019

2019 IEEE Aerospace Conference

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Historically, it has been the case that SWaP placed such severe constraints on radios that the links between spacecraft and the ground were relatively slow. This meant that the radio link was normally a significant bottleneck in returning scientific data. Over recent years, however, a combination of more efficient radio design, intelligent waveforms, and highly directed, high-frequency RF / optical systems have led to a rapid increase in the amount of data that can be pushed through radio and optical links. This has led to some cases where the radio links are capable of moving data much more quickly than the spacecraft and instruments are capable of actually generating it! In some instances, scientific data can therefore be lost not because the downlink is too slow to support the data rate, but instead because the spacecraft was not designed in a way that would let it fully utilize both the radio and the networking services available to it.

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High Data Rate Architecture (HiDRA)

Cited by 10 publications

References 8 publications

Tropical Geometric Route Decision-Making in Simulated Lunar Gateway Communications

Tropical Geometric Route Decision-Making in Simulated Lunar Gateway Communications

Towards Software-Defined Delay Tolerant Networks

A Delay Tolerant Networking-Based Approach to a High Data Rate Architecture for Spacecraft

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