Preambles Based on Power-Split-Ratio for GFRA Systems with Open-Loop Power Control
This letter aims to improve the active user detection (AUD) and channel estimation (CE) performance in grant-free random access (GFRA) systems with […]
Composite Preambles Based on Differential Phase Rotations for Grant-free Random Access Systems
With the advantages of low signaling overhead and latency, grant-free random access (GFRA) becomes a promising technology for supporting massive machine-type communications […]