Wi-Fi standards refer to a set of protocols established and defined by the IEEE (Institute of Electrical and Electronics Engineers). These prescribed techniques are used for wireless local area networking (WLAN) with devices. Each version of Wi-Fi offers varying speed, range, and capacity capabilities. Let’s explore the major standards:
- 802.11b (Wi-Fi 0):
- Released in 1999.
- Data transfer rate: 1–11 Mbps.
- Frequency: 2.4 GHz.
- Not commonly used today.
- 802.11a (Wi-Fi 1):
- Also released in 1999.
- Data transfer rate: Up to 54 Mbps.
- Frequency: 5 GHz.
- Less common due to limited range.
- 802.11g (Wi-Fi 2):
- Introduced in 2003.
- Data transfer rate: 6–54 Mbps.
- Frequency: 2.4 GHz.
- Widely used in the past but now outdated.
- 802.11n (Wi-Fi 3):
- Released in 2008.
- Data transfer rate: 72–600 Mbps.
- Frequency: 2.4 GHz and 5 GHz.
- Improved range and performance.
- 802.11ac (Wi-Fi 5):
- Introduced in 2014.
- Data transfer rate: 433–6933 Mbps.
- Frequency: 5 GHz.
- Commonly used in modern routers.
- 802.11ax (Wi-Fi 6):
- Released in 2019.
- Data transfer rate: Up to 9608 Mbps.
- Frequency: 2.4 GHz and 5 GHz.
- Enhanced efficiency and capacity.
- 802.11be (Wi-Fi 7):
- Expected adoption in 2024.
- Data transfer rate: 1376–46,120 Mbps.
- Frequency: 2.4 GHz, 5 GHz, and 6 GHz.
- Further advancements in speed and reliability.
Remember that these standards are backward-compatible, meaning newer devices can connect to older networks. As technology evolves, Wi-Fi continues to shape our connected world! 📶💡
Note: Wi-Fi 0, 1, 2, and 3 are retroactively named and do not officially exist in the nomenclature.
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