A Redundancy-Aware Two-Step Random Access for LEO Satellite Networks 


Vol. 50,  No. 10, pp. 1564-1567, Oct.  2025
10.7840/kics.2025.50.10.1564


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  Abstract

In this letter, we propose a redundancy-aware two-step random access (2sRA) for LEO satellite networks. We investigate key features of message bundling (MB), and message redundancy elimination (MRE) techniques and integrate them into the 2sRA framework. In our proposed scheme, each user equipment (UE) can initiate multiple RA attempts in parallel using the MB technique, while the base station (BS) retains the collided payloads and attempts to recover them using successfully decoded payloads, leveraging the MRE technique. Simulation results demonstrate that our proposed scheme significantly improves both access success probability and resource efficiency.

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[IEEE Style]

T. Kim, S. H. Chae, I. Bang, "A Redundancy-Aware Two-Step Random Access for LEO Satellite Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 10, pp. 1564-1567, 2025. DOI: 10.7840/kics.2025.50.10.1564.

[ACM Style]

Taehoon Kim, Seong Ho Chae, and Inkyu Bang. 2025. A Redundancy-Aware Two-Step Random Access for LEO Satellite Networks. The Journal of Korean Institute of Communications and Information Sciences, 50, 10, (2025), 1564-1567. DOI: 10.7840/kics.2025.50.10.1564.

[KICS Style]

Taehoon Kim, Seong Ho Chae, Inkyu Bang, "A Redundancy-Aware Two-Step Random Access for LEO Satellite Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 10, pp. 1564-1567, 10. 2025. (https://doi.org/10.7840/kics.2025.50.10.1564)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880