SpaceFibre is an upcoming on-board high-speed communication protocol for space\napplications. It has been developed in collaboration with the European Space Agency to answer\nthe growing data-rate requirement of satellite payloads such as Synthetic Aperture Radars or\nhyper-spectral imagers. SpaceFibre offers a complete set of features (i.e., Fault Detection, Isolation\nand Recovery, and Quality of Service) that guarantees robust communication at the price of higher\ncomplexity. This article proposes an innovative modified implementation of the SpaceFibre standard:\nR-SpaceFibre. It has been designed to reduce hardware resources while keeping high data-rate\ncapability and flow control. Attention is given to the trade-off between Data link layer complexity\nreduction and protocol features. The proposed protocol is particularly suitable in scenarios where\nvery low bit error rate is foreseen and data integrity is not critical, for example in imaging instruments.\nThe main advantage is a reduction of more than 40% of logical resources required per single interface.\nR-SpaceFibre may be a suitable solution for several applications, such as low earth orbit CubeSats,\nwhich have strict requirements in terms of available logic resources, mass, volume and cost, and more\nrelaxed constraints in terms of upset immunity.
Loading....