June 30, 2021

HE MU-MIMO vs VHT MU-MIMO

By firas.shaari In 802.11ax

The 6th video in the series of the 802.11ax training videos. In this video I explain the difference between SU-MIMO and MU-MIMO and how MU-MIMO is done differently in the 802.11ax standard compared to legacy MU-MIMO.

WiFi Roaming – 3-AP Hallway Simulation

📡 WiFi Roaming Simulation – 3-AP Hallway

iPhone SE 2nd Gen & Google Pixel 7 Pro · 5 GHz Band · Attenuator-Simulated Walk

Speed: 4× t = 0s

AP1 ch40 (left) AP2 ch36 (right) AP3 ch44 (left) Google Pixel 7 Pro iPhone SE 2nd Attenuator pattern

June 20, 2021

OFDMA In Action

By firas.shaari In 802.11ax, OFDMA

The 5th video in the series of the 802.11ax training videos. In this video I explain the process that APs and STAs have to go through to complete an OFDMA transmission in the 802.11ax standard.

June 19, 2021

OFDM vs OFDMA

By firas.shaari In 802.11ax

The 4th video in the series of the 802.11ax training videos. In this video I explain the difference between OFDM and OFDMA and introduce the concept of RUs in the 802.11ax standard

June 6, 2021

PPDU Format

By firas.shaari In 802.11ax

The 3rd video in the series of the 802.11ax training videos. In this video I explain the different types of PPDUs in the 802.11ax standard.

Archives June 2021

📡 WiFi Roaming Simulation – 3-AP Hallway