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08 Nov 2020
7 min read

What Are WiFi Standards?

Guest WiFi analytics are tools used to monitor and analyze the performance of guest WiFi networks in real-time. These tools provide insights into network usage, connectivity, and user behavior, allowing administrators to optimize the Guest WiFi experience for their customers. Utilizing the latest WiFi standards created by the Institute of Electrical and Electronics Engineers (IEEE), guest WiFi analytics ensure a fast and efficient Internet connection for guests, improving the quality of service.

The Evolution of WiFi Standards

WiFi standards have constantly evolved since their launch in 1997 for better service quality and networking standards. WiFi standards indicate the precise mechanisms in operation for Internet connection. They operate as a defined set of protocols that direct the functioning of a specific WiFi network you are connected to.

The 802.11 family is the most encountered set of WiFi standards and is updated by the IEEE on a regular basis. While 802.11ac (WiFi 5) remains in use, 802.11ax (WiFi 6 & 6E) has become the global industry standard, and the newly certified 802.11be (WiFi 7) is now driving the next generation of high-performance connectivity.

WiFi standards and speeds explained:

802.11a

Released in 1999, the 802.11a IEEE standard operates in the 5 GHz band to better suit open-space offices. It upgraded the original 802.11 version, which became inefficient over time. The maximum data rate of 802.11a reached 54 Mbps. However, due to the higher frequency, its signal range remained relatively poor compared to lower-frequency standards.

802.11b

This standard was also finalized in 1999, operating in the 2.4 GHz frequency band. It became the first widely accepted wireless LAN technology for home and office use. 802.11b has the capacity to reach a maximum data rate of 11 Mbps. While revolutionary at the time, it is now considered obsolete for modern internet needs.

802.11g

Approved in 2003, 802.11g combined the best of both previous worlds: it worked at the 2.4 GHz band (like 11b) but reached a maximum data rate of 54 Mbps (like 11a). The adoption of dual-band and tri-mode routers led to the widespread global use of this standard for over a decade.

802.11n (WiFi 4)

This amendment in 2009 significantly improved WiFi performance by operating on both 2.4 GHz and 5 GHz bands simultaneously. Also called WiFi 4, it introduced MIMO (Multiple-Input Multiple-Output) technology, providing support for multi-user and multi-channel transmission. This enabled a much swifter connection speed, reaching a theoretical maximum of 600 Mbps.

802.11ac (WiFi 5)

Released in 2014, WiFi 5 focused exclusively on the 5 GHz band to provide higher throughput. It introduced several key modifications, most notably MU-MIMO (Multi-User MIMO) and wider broadcast channels (80 MHz and 160 MHz). These upgrades allowed the maximum data rate to reach up to 3.46 Gbps (though commonly cited as 1.3 Gbps in standard consumer setups), significantly improving the quality of high-definition streaming.

802.11ax (WiFi 6 & WiFi 6E)

Designated to enhance the effectiveness of WLAN networks in crowded environments, WiFi 6 (released in 2019/2020) utilizes both 2.4 GHz and 5 GHz bands. It introduced OFDMA (Orthogonal Frequency-Division Multiple Access), which allows data to be split into various resource units, improving efficiency by 30-40% over WiFi 5.

WiFi 6E, launched shortly after, expanded this technology into the 6 GHz band. This addition provides a massive new spectrum for data streaming, reducing interference and enabling faster data rates up to 9.6 Gbps. It is currently the industry standard for high-performance guest networks.

802.11be (WiFi 7)

Known as “Extremely High Throughput (EHT),” WiFi 7 is the latest certified evolution of the IEEE 802.11 standard. It operates across the 2.4 GHz, 5 GHz, and 6 GHz bands simultaneously. Its enhanced technical features—such as 320 MHz channel width and Multi-Link Operation (MLO)—enable peak speeds of over 40 Gbps, which is four times faster than WiFi 6. WiFi 7 is now commercially available and is designed to support 8K video streaming and ultra-low latency VR/AR experiences.

Compatibility

A fundamental question is whether different WiFi standards can communicate. Modern hardware is generally backwards compatible, meaning a WiFi 7 router can typically support devices running on WiFi 6 or WiFi 5. However, the connection will always be limited to the maximum speed of the “slowest” device in the link. While separate devices on the same network communicate freely, older legacy devices (using 802.11a or b) may encounter significant performance issues or connectivity hurdles on modern, high-security enterprise networks.

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