Throughput-Fairness Tradeoff MAC for Multiuser IBFD (TFMAC)

In this paper, we investigate the user selection techniques for an in-band full-duplex access point that simultaneously transmits and receives data from multiple users for the next-generation wireless local area network. Then, we propose a throughput-fairness tradeoff selection algorithm to enable the AP to maximize the throughput with a maintainable fairness level. In addition, we propose a throughput-fairness medium access control (TFMAC) based on the 802.11 standards to accommodate the requirements of the proposed selection algorithm and support legacy nodes. Our simulation results show that TFMAC improves the throughput compared to multiple state-of-the-art benchmarks while maintaining the desired fairness levels. Also, we study the interplay between the throughput, the uplink fairness, and the downlink fairness for the operation of TFMAC. Finally, we discuss the complexity of the proposed scheme.