Novel Cross-Link Interference-Aware Scheduling for In-Band Full-Duplex 6G Wireless Networks

This paper proposes a user scheduling algorithm to mitigate the critical cross-link interference (CLI) problem in in-band full duplex (IBFD) systems. In the proposed scheme, downlink (DL) user equipments (UEs) acquire effective CLI channel information from the beamformed pilot signals of scheduled uplink (UL) UEs. This allows the DL UEs to design receive beamformers that actively suppress CLI before the base station performs DL scheduling based on the mitigated interference. Simulation results demonstrate that our algorithm significantly improves the DL sum rate compared to conventional CLI measurement based schemes.