{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T13:38:09Z","timestamp":1753882689125,"version":"3.41.2"},"reference-count":22,"publisher":"World Scientific Pub Co Pte Ltd","issue":"12","funder":[{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of China","doi-asserted-by":"crossref","award":["61901370","62001381","62071354"],"award-info":[{"award-number":["61901370","62001381","62071354"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100015401","name":"Key Research and Development Program of Shaanxi","doi-asserted-by":"crossref","award":["2022ZDLGY05-08","2021GY-043"],"award-info":[{"award-number":["2022ZDLGY05-08","2021GY-043"]}],"id":[{"id":"10.13039\/501100015401","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Open Fund of the Shaanxi Key Laboratory of Information Communication Network and Security","award":["ICNS202001"],"award-info":[{"award-number":["ICNS202001"]}]},{"name":"Science and Technology Innovation Team of Shaanxi Province for Broadband Wireless and Application","award":["2017KCT-30-02"],"award-info":[{"award-number":["2017KCT-30-02"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J CIRCUIT SYST COMP"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:p> Thanks to its capability of providing seamless massive access and extended coverage, satellite communication has been envisioned as a promising complementary part of the future 6G network. Due to the large satellite-to-ground propagation loss, noise mitigation is one of the most important considerations for implementing key interface technologies on boarding a satellite, e.g., random access (RA). This paper aims at developing an effective preamble detection method with noise suppression for 5G-ntegrated satellite RA systems. Specifically, according to the satellite ephemeris and user equipment location, we first perform the pre-compensation of timing and frequency offset before preamble transmission to determine all the possible correlation peak positions in advance. By leveraging the advantage of the wavelet transform in signal-to-noise separation, we further design a novel detection framework based on wavelet denoising, which can efficiently reconstruct preamble signature from the noisy power delay profile. Simulation results validate the feasibility of the proposed method, and show that our method can achieve a notably improved detection performance under extremely low signal-to-noise ratio conditions, in comparison with the conventional one. <\/jats:p>","DOI":"10.1142\/s0218126623501979","type":"journal-article","created":{"date-parts":[[2023,1,6]],"date-time":"2023-01-06T03:13:18Z","timestamp":1672974798000},"source":"Crossref","is-referenced-by-count":1,"title":["Random Access Preamble Detection with Noise Suppression for 5G-Integrated Satellite Communication Systems"],"prefix":"10.1142","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6340-2873","authenticated-orcid":false,"given":"Li","family":"Zhen","sequence":"first","affiliation":[{"name":"School of Communications and Information Engineering, Xi\u2019an University of Posts and Telecommunications, Xi\u2019an, Shaanxi, P. R. 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