{"title":"Doppler Frequency-Offset Estimator for Multi-carrier Faster-than-Nyquist Signaling in Low-Earth-Orbit Satellite Communications","authors":"X. H. Liang, A. J. Liu, X. Q. Gao","doi":"10.1007/s11277-024-11572-8","DOIUrl":null,"url":null,"abstract":"<p>As the comming of the sixth generation (6 G) era, the Low-Earth-Orbit (LEO) satellite communications are expected to provide better service for massive terminals. With the rapid increasing of users, it will make the wireless spectrum resource more scarce. In this paper, in order to improve the spectrum efficiency, Multi-carrier Faster-than-Nyquist (MFTN) signaling is applied into downlink of LEO satellite communications. Further, we have proposed a Doppler frequency offset estimator, which can minimize the performance loss of MFTN signaling in the LEO satellite channel. For reducing computation complexity, the proposed estimator has been simplified by polynomial approximation. In LEO satellite channel, simulation results demonstrated that the proposed estimator can achieve satisfied estimation performance. It is also verified that our proposed estimator can reduce transmission performance loss for MFTN with different packing factors.</p>","PeriodicalId":23827,"journal":{"name":"Wireless Personal Communications","volume":null,"pages":null},"PeriodicalIF":1.9000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Wireless Personal Communications","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1007/s11277-024-11572-8","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
As the comming of the sixth generation (6 G) era, the Low-Earth-Orbit (LEO) satellite communications are expected to provide better service for massive terminals. With the rapid increasing of users, it will make the wireless spectrum resource more scarce. In this paper, in order to improve the spectrum efficiency, Multi-carrier Faster-than-Nyquist (MFTN) signaling is applied into downlink of LEO satellite communications. Further, we have proposed a Doppler frequency offset estimator, which can minimize the performance loss of MFTN signaling in the LEO satellite channel. For reducing computation complexity, the proposed estimator has been simplified by polynomial approximation. In LEO satellite channel, simulation results demonstrated that the proposed estimator can achieve satisfied estimation performance. It is also verified that our proposed estimator can reduce transmission performance loss for MFTN with different packing factors.
期刊介绍：
The Journal on Mobile Communication and Computing ...
Publishes tutorial, survey, and original research papers addressing mobile communications and computing;
Investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia;
Explores propagation, system models, speech and image coding, multiple access techniques, protocols, performance evaluation, radio local area networks, and networking and architectures, etc.;
98% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again.
Wireless Personal Communications is an archival, peer reviewed, scientific and technical journal addressing mobile communications and computing. It investigates theoretical, engineering, and experimental aspects of radio communications, voice, data, images, and multimedia. A partial list of topics included in the journal is: propagation, system models, speech and image coding, multiple access techniques, protocols performance evaluation, radio local area networks, and networking and architectures.
In addition to the above mentioned areas, the journal also accepts papers that deal with interdisciplinary aspects of wireless communications along with: big data and analytics, business and economy, society, and the environment.
The journal features five principal types of papers: full technical papers, short papers, technical aspects of policy and standardization, letters offering new research thoughts and experimental ideas, and invited papers on important and emerging topics authored by renowned experts.
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