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cs.IT2022
LEO Satellite-Enabled Grant-Free Random Access with MIMO-OTFS
Boxiao Shen, Yongpeng Wu, Wenjun Zhang +3
This paper investigates joint channel estimation and device activity detection in the LEO satellite-enabled grant-free random access systems with large differential delay and Doppl…
eess.SP2022
Random Access with Massive MIMO-OTFS in LEO Satellite Communications
Boxiao Shen, Yongpeng Wu, Jianping An +3
This paper considers the joint channel estimation and device activity detection in the grant-free random access systems, where a large number of Internet-of-Things devices intend t…