Effect of Physical-Layer Impairments on Two-Step Random Access with Message Replication in 6G NTN 


Vol. 51,  No. 3, pp. 653-656, Mar.  2026
10.7840/kics.2026.51.3.653


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  Abstract

In this paper, we propose a probabilistic model to analyze the impact of physical-layer impairments on the access success probability of a two-step random access (2sRA) procedure with message replication. The proposed model jointly considers the effects of collision probability, signal detection probability, and decoding error probability to quantitatively evaluate the access performance under realistic wireless conditions. Furthermore, the validity of the analysis is verified through simulations, and an effective operational strategy for 2sRA with message replication in 6G non-terrestrial networks (NTNs) is derived.

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  Cite this article

[IEEE Style]

W. Lee, J. Moon, H. Jang, C. Park, I. Bang, T. Kim, "Effect of Physical-Layer Impairments on Two-Step Random Access with Message Replication in 6G NTN," The Journal of Korean Institute of Communications and Information Sciences, vol. 51, no. 3, pp. 653-656, 2026. DOI: 10.7840/kics.2026.51.3.653.

[ACM Style]

Wonho Lee, Jihwan Moon, Haneol Jang, Cheoneum Park, Inkyu Bang, and Taehoon Kim. 2026. Effect of Physical-Layer Impairments on Two-Step Random Access with Message Replication in 6G NTN. The Journal of Korean Institute of Communications and Information Sciences, 51, 3, (2026), 653-656. DOI: 10.7840/kics.2026.51.3.653.

[KICS Style]

Wonho Lee, Jihwan Moon, Haneol Jang, Cheoneum Park, Inkyu Bang, Taehoon Kim, "Effect of Physical-Layer Impairments on Two-Step Random Access with Message Replication in 6G NTN," The Journal of Korean Institute of Communications and Information Sciences, vol. 51, no. 3, pp. 653-656, 3. 2026. (https://doi.org/10.7840/kics.2026.51.3.653)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880