Wireless Local Area Network (WLAN) is a wireless communication system that connects two or more devices using radio frequency to form a local network (LAN). WLAN is used inside buildings (e.g., apartment, campus, train station). Unlike Ethernet, The first WLAN standard, namely IEEE 802.11b, was released in the 1990s. Maximum achievable data rate is 11 Mbps for 802.11b. The most recent version is 802.11ax with maximum throughput of 3.46 Gbps. This thesis reports network throughput, jitter, and delay performance of IEEE 802.11ax experimentally measured and analyzed under various conditions (SNR, window size and packet length). It also gives an empirical model to simulate the behavior of 802.11ax network throughput and jitter.