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http://dx.doi.org/10.5139/JKSAS.2020.48.4.295

Relay of Remote Control Signal for Spacecraft in Deep Space via FHLH  

Koo, Cheol Hea (Korea Aerospace Research Institute)
Kim, Hyungshin (Chungnam National University, Department of Computer)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.4, 2020 , pp. 295-301 More about this Journal
Abstract
When a spacecraft in deep space falls into an abnormal state, an emergency communication channel between ground and the spacecraft is essential in order to perform analysis to the cause of the anomaly, and to remedy the spacecraft from the distressed state. Because the recovery actions generally comprises of long and complicated sequences of commands, the transmission of the recovery commands may require a reliable and a delay tolerant networking technology based on bundle routing. While the delay tolerant networking protocol becomes a prominent method interfacing ground and space into a internet-like Solar system network because it can address the issues of the severe communication problems in deep space, the communication system on the spacecraft which based on space packet protocol cannot use the delay tolerant networking technology directly. So a community of the consultative committee for space data systems starts a discussion of the first-hop last-hop mechanism to establish a feasible concept and standardization. This paper presents an enhanced concept of the first-hop last-hop by applying it a virtual cislunar communication environment, and we believe this contributes to make a way applicable to an interoperable relay concept of the first hop last hop between the delay tolerant networking and space packet protocol standard.
Keywords
Space Packet Protocol; Delay Tolerant Networking; First-Hop Last-Hop; Communication Relay; Cislunar; Deep Space; Consultative Committee for Space Data Systems;
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