Performance Analysis of QTP-based S2S Transmission in IEEE 802.11ax WLANs

Abstract

The Quiet Time Period (QTP) is a new feature introduced in IEEE 802.11ax standard to support the coexistence of the Station-to-Station (S2S) and uplink/downlink in a WLAN. However, according to the standard, an AP has a restriction that it should accept QTP procedure only if the introduction of QTP would benefit the network performance. Therefore, prior to the designing a practical QTP control scheme, it is necessary to analyze the effect of QTP on network performance. For this purpose, this paper evaluates the performance of QTP, Uplink OFDMA Random Access (UORA), and MU DL (Multi-User Down Link) in terms of throughput and transmission delay, respectively, by simulation.