Skip to main content

Table 8 Wi-Fi protocol comparison

From: Building an indoor air quality monitoring system based on the architecture of the Internet of Things

Protocol Number of generation Frequency band (GHz) Bandwidth (MHz) Maximum rate
802.11 The first generation 2.4 20 2 M bit/s
802.11b The second generation 2.4 20 11 M bit/s
802.11 g The third generation 2.4 20 54 M bit/s
802.11a   5   54 M bit/s
802.11n The fourth generation 2.4 20 72 M bit/s
   5 40 150 M bit/s
802.11ac The fifth generation 5 20 87 M bit/s
    40 200 M bit/s
    80 433 M bit/s
    160 866
802.11ax The sixth generation 2.4 160 1000 M bit/s
   5   
   6[1]