802.11 WiFi 

802.11 WiFi Technology Standards Explained

802.11 WiFi Standards: A Breakdown

Here's a breakdown of the key 802.11 WiFi standards, focusing on their speeds, modulation techniques, and compatibility:

Key Points:

• Modulation Techniques:

  • DSSS: Older technique, less efficient.

  • OFDM: More efficient, allows for higher data rates.

  • MIMO: Uses multiple antennas to increase data rates and reliability.

  • MU-MIMO: Allows simultaneous communication with multiple devices.

  • OFDMA: Divides the channel into smaller subchannels for efficient resource allocation.

• Frequency Bands:

  • 2.4 GHz: More congested, but has better range.

  • 5 GHz: Less congested, but shorter range.

  • 6 GHz: Newer band, offers more channels and higher speeds.

• Compatibility:

  • Newer standards are generally backward compatible with older ones, allowing devices to communicate.

  • However, for optimal performance, it's best to use devices that support the same standard.

By understanding these key factors, you can choose the right WiFi standard for your needs and ensure optimal performance and compatibility.

References:

• Comparison Of Wireless Lan Standards/Protocols Chart 

• cisco Ccna Exam Cram Study Guide 

• IEEE 802.11 WiFi Standards Reviewed | Wireless News – Technologies