## 5 Proof-of-Concept Results
### The P4 Algorithm
Available online: [[https://sourceforge.net/projects/ion-dftn](https://sourceforge.net/projects/ion-dftn)]([https://sourceforge.net/projects/ion-dftn](https://sourceforge.net/projects/ion-dftn)) (accessed on 1 September 2022). * (13) The Consultative Committee for Space Data Systems. _Licklider Transmission Protocol (LTP) for CCSDS_; CCSDS Blue Book; CCSDS: Washington, DC, USA, 2015. * (14) [PERSON] Contact Graph Routing. 2009. Available online: [[https://tools.ietf.org/html/draft-burleigh-dntrg-cgr-00](https://tools.ietf.org/html/draft-burleigh-dntrg-cgr-00)]([https://tools.ietf.org/html/draft-burleigh-dntrg-cgr-00](https://tools.ietf.org/html/draft-burleigh-dntrg-cgr-00)) (accessed on 1 September 2022). * (15) NASA Glenn Research Center. High Rate Delay Tolerant Networking (HDTN). Available online: [[https://www1.grc.nasa.gov/space/scan/acs/tech-studies/dftn/](https://www1.grc.nasa.gov/space/scan/acs/tech-studies/dftn/)]([https://www1.grc.nasa.gov/space/scan/acs/tech-studies/dftn/](https://www1.grc.nasa.gov/space/scan/acs/tech-studies/dftn/)) (accessed on 1 September 2022). * (16) [PERSON]; [PERSON] High Data Rate Architecture (HiDRA). In Proceedings of the Ka and Broadband Communications Conference 2016, Cleveland, OH, USA, 17-20 October 2016. * (17) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Rising above the cloud: Toward high-rate delay-tolerant networking in low earth orbit. In Proceedings of the 37 th International Communications Satellite Systems Conference (ICSSC-2019), Okinawa, Japan, 29 October -1 November 2019; pp. 1-17. [CrossRef]
* (18) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON]; et al. New Horizons for a Practical and Performance-Optimized Solar System Internet. In Proceedings of the IEEE Aerospace Conference 2022, Big Sky, MT, USA, 5-12 March 2022. * (19) [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON]; et al. _Developing High Performance Space Networking Capabilities for the International Space Station and Beyond_; Technical Memorandum; NASA: Washington, DC, USA, 2022. * (20) [PERSON]; [PERSON] _Using Self-Delmitting Numeric Values in Protocols_; RFC 6256; IETF: Fremont, CA, USA, 2011. [CrossRef]
* (21) [PERSON] _Compressed Bundle Header Encoding (CBHE)_; RFC 6260; IETF: Fremont, CA, USA, 2011. [CrossRef]
* (22) [PERSON]; [PERSON] _Concise Binary Object Representation (CBOR)_; RFC 8949; IETF: Fremont, CA, USA, 2020. [CrossRef]
* (23) [PERSON]; [PERSON]; [PERSON] Routing in a Delay Tolerant Network. In Proceedings of the 2004 Conference on Applications, Technologies, Architectures, and Protocols for Computer Communications, Portland, OR, USA, 30 August-3 September 2004; Association for Computing Machinery: New York, NY, USA, 2004; pp. 145-158. [CrossRef]
* (24) [PERSON]; [PERSON]; [PERSON]. Practical Routing in Delay-Tolerant Networks. In Proceedings of the 2005 ACM SIGCOMM Workshop on Delay-Tolerant Networking, Philadelphia, PA, USA, 26 August 2005; Association for Computing Machinery: New York, NY, USA, 2005; pp. 237-243. [CrossRef]
* (25) [PERSON]; [PERSON]; [PERSON]; [PERSON] Toward a unified routing framework for delay-tolerant networking. In Proceedings of the 2016 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE), Aachen, Germany, 26-29 September 2016; IEEE: Piscataway, NJ, USA, 2016; pp. 82-86. * (26) [PERSON] Hierarchical Inter-Regional Routing Algorithm for Interplanetary Networks. Master's Thesis, University of Bologna, Bologna, Italy, 2019. * (27) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Alleviating Bundle Throughput Constriction for Delay Tolerant Networking (DTN) Bundles with Software Defined Networking (SDN). In Proceedings of the SPACOMM 2022, the Fourteenth International Conference on Advances in Satellite and Space Communications, Barcelona, Spain, 24-28 April 2022.