Wireless protocols IEEE 802.11 A B G N compared

When buying a wireless router or a wireless network card, have you ever wondered what do these letters next to the protocol 802.11 (a, b, g, and n) really mean? What is the difference between these protocols?

IEEE 802.11 is a set of standards for wireless local area network (WLAN) computer communication. The terms 802.11 and Wi-Fi are often used interchangeably but there is slight difference between the two.

(A) 802.11a
Frequency- 5 GHz  
Typical Data Rate - 23 Mbit/s  
Max Data rate – 54 Mbit/s  
Range – 115 feet

(B) 802.11b
Frequency - 2.4 GHz  
Typical Data Rate - 4.5 Mbit/s  
Max Data rate – 11 Mbit/s  
Range - 115 feet

(G) 802.11g
Frequency - 2.4 GHz  
Typical Data Rate – 19 Mbit/s  
Max Data rate - 54 Mbit/s  
Range – 125 feet

(N) 802.11n
Frequency - 5GHz and/or 2.4GHz  
Typical Data Rate - 74 Mbit/s  
Max Data rate - 300 Mbit/s (2 streams)
Range – 230 feet

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  1. #1 by Joe Bal on August 12, 2013 - 10:29 pm

    Have found at last, a simplified explanation. Thanks!!

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  4. #4 by Nilesh on January 20, 2013 - 11:33 pm

    good article, made quite simple to understand.

  5. #5 by mamudu victor on July 16, 2012 - 2:39 am

    What is the protocol backing the bluetooth technology?

  6. #6 by Tanak on May 18, 2012 - 12:42 pm

    nice article, my mobile device has 802.11 b/g/n, since i don’t have 802.11 a, what exactly am i missing out on?

  7. #7 by saqib on March 15, 2012 - 10:45 am

    thanks for ur kind informations

  8. #8 by http://chipticket.org on June 20, 2011 - 1:09 pm

    It is very rare to find expert people on this subject, however you seem like you know very well what you’re talking about! Many thanks

  9. #9 by rubenrubert on May 9, 2011 - 8:26 pm

    Excellent Article

  10. #10 by saravanansubramanian on September 9, 2010 - 7:39 am

    Hi what is difference between WPA and WPA2, why we need security testing, is it packet level security or system level security?

  11. #11 by rohit on August 9, 2010 - 5:06 am

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  13. #13 by Deep on May 5, 2010 - 7:59 am

    superb !!

  14. #14 by Aditya on January 21, 2010 - 9:55 am

    Thanks, I had an assignment to find out and compare types of wireless protocols so this post was helpful

  15. #15 by MrMamba on December 14, 2009 - 1:52 pm

    ok….so which is the better one?

  16. #16 by sandrar on September 10, 2009 - 6:25 am

    Hi! I was surfing and found your blog post… nice! I love your blog. :) Cheers! Sandra. R.

  17. #17 by Subash Kumar on September 7, 2009 - 9:11 am

    hi,

    i want information about diffreence between Access point,Repeater,bride and client

    • #18 by Daniel on May 7, 2010 - 2:06 am

      Hi Subhash,

      Access Point : Typically we use this term to discribe a wireless transmitter, having said that any device that you might possibily have access to is called as an access point

      Repeater: These are devices used to boost wireless signals, ideally we use this when we would want out wireless signals travel beyond it range

      I am asuming that you wrote Bridge: This is a device use to connect two or more networks, from a home users prespective they use a modem to bridge between LAN and WAN

      Client : Is a computer in a network when look up to a server to process any request.

  18. #19 by Basheer on April 25, 2009 - 4:49 am

    Thanks for this summarized comparison! good work..

  19. #20 by Nitesh on April 12, 2009 - 8:07 am

    I would like to see a comparison of 1×2 and 3×3 cards for wireless N.

  20. #21 by Nitesh on April 4, 2009 - 9:25 am

    Whats the difference between 1×2 and 3×3 for wireless n?

  1. [DÚVIDA] Modo IEEE: a, n ou a/n?

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