Analysis of requirements for modern spacecraft onboard network protocols

Olenev, Valentin

doi:10.31799/1684-8853-2021-1-8-16

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Spacecraft data-handling networks [1] are required to sustain multi-gigabit capabilities, due to the increasingly high data volume produced by high-rate payloads, such as hyperspectral imagers [2] and synthetic aperture radars [3]. The demand for high bandwidth leads to some limitations of single-lane standards [4][5][6][7][8][9], and some multi-lane standards [10] support only an even number of lane configurations. To enhance the data processing ability in a space environment, the European Space Agency developed the SpaceFibre [11] standard for interconnection networks designed for satellite payloads.…”

Section: Introductionmentioning

confidence: 99%

An Efficient Multi-Lane SpaceFibre Core for Spacecraft Data-Handling Networks

Zheng

Jiang

2022

Electronics

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As one of the key technologies in spacecraft data-handling networks mounting high-resolution payloads, the multi-lane native SpaceFibre standard is designed to meet the demands for the high-speed and reliable interconnections between satellite payloads. A few studies are about the implementations of a multi-lane SpaceFibre core. Even though they exhibit good performance, several limitations still, more or less, exist. We detail an efficient multi-lane SpaceFibre (E-ML-SpFi) core for high-rate and fault-tolerant data communication. The E-ML-SpFi core exploits a hierarchical method to decouple the complex control logic of the retransmission mechanism. The core employs a modified word re-ordering block to map an extended set of words on a real-time variable number of data-sending lanes. Meanwhile, the core introduces the architecture of a fast alignment subsystem to accelerate the alignment process. A hardware implementation on XC7Z100 FPGA shows that the E-ML-SpFi core has complete functionality stipulated by the standard and requires limited resources, with 6290 (2.26%) LUTs and 8252 (1.49%) FFs. The maximum operating frequency of the core is 200 MHz. Moreover, the recovery time is reduced up to 30.9% compared with previous work. Therefore, the core provides a valid solution for future interconnection networks onboard spacecraft.

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Section: Introductionmentioning

confidence: 99%

An Efficient Multi-Lane SpaceFibre Core for Spacecraft Data-Handling Networks

Zheng

Jiang

2022

Electronics

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Additional Approaches for Onboard Networks FDIR

Rozhdestvenskaya

Olenev

2021

2021 Wave Electronics and Its Application in Information and Telecommunication Systems (WECONF)

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Analysis of the SpaceFibre technology for the high-bandwidth onboard networks

Suvorova

Stepanov

Olenev

2023

S&T

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The paper presents an analysis of a prospective international standard SpaceFibre for on board data exchange for different types of aircraft. Paper provides the rationale for using of this standard for new generation on-board networks. The obtained results are based on many years of experience with the SpaceWire/SpaceFibre family of open international standards. The authors present the main problems of SpaceFibre, as well as ways to solve them. The first problem is related to the use of multi-channel data transmission in prospective Russian projects, as well as the need to increase throughput using existing equipment and physical cables. It is necessary to develop new transmission methods and algorithms and create a completely Russian version of the multilane level for the described standard. The second problem relates to the organization of data transmission in SpaceFibre networks with a large number of nodes and a complex scheme of data transfer flows, it is a consequence of an insufficiently developed network level of the standard. The authors give possible ways to solve the identified inconsistences of the standard using the concept of software-reconfigurable networks. The finalization of the SpaceFibre standard in terms of the discussed problems will improve the efficiency of the protocol itself, as well as take into account all possible comments before the stage of creating of a Russian State Standard for SpaceFibre.

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Analysis of requirements for modern spacecraft onboard network protocols

Cited by 3 publications

References 12 publications

An Efficient Multi-Lane SpaceFibre Core for Spacecraft Data-Handling Networks

An Efficient Multi-Lane SpaceFibre Core for Spacecraft Data-Handling Networks

Additional Approaches for Onboard Networks FDIR

Analysis of the SpaceFibre technology for the high-bandwidth onboard networks

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