Zhiwei Liu

Nov 28, 2024 | mdpi.com | Rong zhao |Qing Hu |Zhiwei Liu |Yi Li

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Nov 20, 2024 | mdpi.com | Zhiwei Liu |Xiaoyu Li |Dejun Mu

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

Oct 15, 2024 | onlinelibrary.wiley.com | Dong Zhao |Hao Wang |Zhiyou Wei |Zhiwei Liu

Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors.

Jul 15, 2024 | mdpi.com | Fei Luo |Shuai Wang |Xuwu Zhang |Zhiwei Liu

All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.

May 28, 2024 | mdpi.com | Chen Wang |Lin Zheng |Gang Wang |Zhiwei Liu

1. IntroductionWith the increasing demand for interactive data services from the satellite Internet of Things, there is a shortage of spectrum resources for satellite communications [1,2]. Recent surveys have shown that up to 80% of allocated frequency bands are under-utilized, thus resulting in a significant waste of spectrum resources [3].