Simulation-based Performance Analysis of an NR-U and WiFi Coexistence System in the Presence of Hidden Nodes
Qilei Ren, Jun Gang Zheng · 2023
This paper analyzes the performance of an NR-U and WiFi coexistence system in the presence of hidden nodes based on simulation experiments. We consider a coexistence system where NR-U gNBs employ an NR-U category-4 LBT procedure while WiFi Access Points (APs) employ a WiFi DCF procedure for channel contention. The number of hidden nodes and that of sensible nodes of an NR-U gNB in the coexistence system are analyzed, and the impacts of major parameters on the system performance in terms of the average throughput and packet delay of an NR-U gNB/a WiFi AP are investigated through extensive simulation results. Useful results are obtained for the design of an NR-U and WiFi coexistence system.