Yao Ge

Joint Timing Offset Estimation, User Activity Detection, and Channel Estimation for Asynchronous OTFS-Based Grant-Free Random Access

Grant-free random access (GFRA) is a key enabler for massive machine-type communications (mMTC) in future wireless networks. However, supporting massive access under high mobility and asynchronous transmissions remains a fundamental challenge, especially for orthogonal time–frequency space (OTFS) modulation, where timi...