2022 年 11 巻 9 号 p. 577-582
We study about point-to-multi-point (PtMP) downlink transmission that simultaneously accommodates a high-capacity guaranteed backhaul-link and best-effort access-links using orbital angular momentum (OAM) multiplexing. OAM multiplexing is executed on the backhaul-link, and other pieces of user equipment use parts of the OAM modes that are not used in the backhaul-link. We propose a prioritized resource-control method that maximizes the capacity of the access-links while maintaining the capacity of the backhaul-link above the target value for PtMP downlink transmission using OAM multiplexing. We evaluated the performance of the proposed method through simulations and outdoor transmission experiments.