[CentOS] CentOS 4 and laptop and wifi works

Robert Moskowitz rgm at htt-consult.com
Sun Jul 9 12:20:37 UTC 2006


Ralph Angenendt wrote:
> Rodrigo Barbosa wrote:
>> Okey, that is a 802.11ab (11Mbps) chip. My experiences were only with
>> 802.11g (54Mbps) chips.
>
> Ermm. 802.11a is 54Mbps ... 
The world of 802.11 is more complex than those of you that do not write 
specs should care about.

Yes, 11a is 54Mb.  So is 11g at 2.4Ghz.  There is lots written on the 
pains of frequencies, modulations, the FCC, other users of said 
frequencies (like military), and other national boards (like Japan) that 
points to why things are as they are in 802.11 world.


My 'rule-of-thumb' for 11g vs 11a is:

For general use,  11g is better than 11a for coverage and material 
penetration.

For multi-occupancy environments (shared office buildings and 
apartments) the additional channels with 11a easy balance against the 
pain of negotiating, or just fighting over use of the channels.

Also home entertainment and particularly music will benefit from 11a 
over 11g.  And 11n over either...






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