A Threshold-Free Random Access Preamble Detection Method Based on Joint Clustering for 6G NTN

Li Zhen, Yue Wang, Teng Sun, Wenjing Wang, Keping Yu, Rupak Kharel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


Thanks to its irreplaceable superiority in providing seamless coverage, satellite communication is expected to play an important role in supporting ubiquitous and continuous connectivity services for 6G wireless networks. With the pre-compensation of timing and frequency offset, we propose a novel random access (RA) preamble detection method for the high-dynamic non-terrestrial networks (NTN). Unlike the conventional threshold-based methods, the proposed method leverages a joint clustering algorithm to accurately capture the timing position corresponding to the first arrival path without noise variance estimation. Simulation results validate the effectiveness of the proposed method in a typical satellite non line-of-sight (NLOS) scenario, and indicate that our method can achieve a notable performance enhancement in terms of the error detection probability (EDP) and the timing mean square error (MSE), in comparison to the exiting methods.

Original languageEnglish
Title of host publication2021 IEEE Globecom Workshops, GC Wkshps 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781665423908
ISBN (Print)9781665423915
Publication statusPublished - 24 Jan 2022
Externally publishedYes
Event2021 IEEE Globecom Workshops - Madrid, Spain
Duration: 7 Dec 202111 Dec 2021


Conference2021 IEEE Globecom Workshops
Abbreviated titleGC Wkshps 2021

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