Wi is Fi: Understanding Wi-Fi 4/5/6/6E/7/8 (802.11 n/AC/ax/be/bn) (wiisfi.com)

Article summary

The article discusses the evolution of Wi-Fi standards, from Wi-Fi 1 to Wi-Fi 7, and explains the factors that affect Wi-Fi speeds, such as distance from the router, interference, and client device capabilities. It also highlights the importance of understanding the difference between theoretical maximum speeds and actual throughput. The article provides tips and tools for optimizing Wi-Fi performance and explains key concepts like modulation, coding, and MIMO. The author emphasizes that client device capabilities often limit Wi-Fi speeds, not the router or access point.

Main themes

• Wi-Fi standards evolution
• Wi-Fi performance optimization
• Client device capabilities
• Interference and distance
• Modulation and coding
• MIMO and spatial streams

What commenters say

• The development of Wi-Fi standards has slowed down over the years, with fewer significant improvements in recent versions.
• Powerline devices are not a reliable alternative to Wi-Fi, often suffering from poor performance and interference.
• The use of Wi-Fi 6 and 6E has introduced new challenges, such as the need for better transceivers and more efficient modulation techniques.
• The signal strength of Wi-Fi decreases exponentially with distance, but this may be due to a combination of factors, including modulation and coding.
• The performance of Wi-Fi networks is greatly affected by neighboring networks and devices, making it essential to consider the overall network environment.
• Newer client devices tend to outperform older ones, even when connected to the same router, due to improved hardware and software capabilities.
• The distinction between theoretical maximum speeds and actual throughput is crucial, as the latter is often limited by client device capabilities and network conditions.
• The use of mesh systems and Wi-Fi extenders can introduce additional challenges, such as reduced throughput and increased latency.