The Evolution of Wi-Fi Standards: A Journey from 802.11b to Wi-Fi 7

The Evolution of Wi-Fi Standards: A Journey from 802.11b to Wi-Fi 7

In today’s digital age, Wi-Fi is an essential part of our lives. The journey of this wireless technology, from its humble beginnings to the high-speed data transmission of Wi-Fi 7, is filled with fascinating innovations and breakthroughs.

The Milestones of WiFi Standards:

✅ 802.11b (1999):
Max Speed: 11 Mbps
Frequency Band: 2.4 GHz
Tech: Complementary Code Keying (CCK)
Highlight: Better penetration and coverage

✅ 802.11g (2003):
Max Speed: 54 Mbps
Frequency Band: 2.4 GHz
Tech: OFDM
Highlight: Improved compatibility over 802.11a

✅ 802.11n (Wi-Fi 4) (2009):
Max Speed: 600 Mbps or higher
Frequency Bands: 2.4 GHz and 5 GHz
Tech: Multiple Input Multiple Output (MIMO)
Highlight: Simultaneous transmission of multiple data streams

✅ 802.11ac (Wi-Fi 5) (2013):
Max Speed: Gigabits per second (Gbps)
Frequency Band: 5 GHz
Tech: Enhanced MIMO, Beamforming
Highlight: Higher modulation techniques

✅ 802.11ax (Wi-Fi 6) (2019):
Max Speed: Higher efficiency and capacity
Tech: Orthogonal Frequency Division Multiple Access (OFDMA), Multi-User MIMO (MU-MIMO)
Highlight: Better support for high-density environments

✅ 802.11be (Wi-Fi 7) (2024):
Max Speed: Up to 46 Gbps
Tech: 320MHz bandwidth, 4096-QAM, Multi-RU, Multi-Link Operation, Enhanced MU-MIMO, Multi-AP Coordination
Highlight: Four times the throughput of Wi-Fi 6

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Source: LinkedIn

Credits: Mr. Ron Johny