I should probably know this, but doesn't N just spread better and have the ability to send receive on multiple polarizations? As an RF engineer I should probably know this, but I can't think of many people in my industry who really care about 802.11_. I really don't even use wireless in my house, though it's generally due to overcrowding the spectrum in populous areas.
From my Android phone on T-Mobile. The first nationwide 4G network.
-------- Original message -------- From: Owen DeLong <owen@delong.com> Date: 02/25/2013 8:38 AM (GMT-08:00) To: Frank Bulk <frnkblk@iname.com> Cc: NANOG <nanog@nanog.org> Subject: Re: 10 Mbit/s problem in your network Correct. However, while A is 5Ghz (only), it's not significantly better than G. The true performance gains come from 5Ghz and N together. N on 2.4Ghz has limited benefit over G. N on 5Ghz is significantly better. Owen On Feb 24, 2013, at 8:56 PM, "Frank Bulk" <frnkblk@iname.com> wrote:
The IEEE 802.11n standards do not require 5 GHz support. It's typical, but not necessary.
Frank
-----Original Message----- From: Owen DeLong [mailto:owen@delong.com] Sent: Sunday, February 17, 2013 2:07 PM To: Jay Ashworth Cc: NANOG Subject: Re: 10 Mbit/s problem in your network
On Feb 17, 2013, at 08:33 , Jay Ashworth <jra@baylink.com> wrote:
----- Original Message -----
From: "Scott Howard" <scott@doc.net.au>
A VPN or SSH session (which is what most hotel guests traveling for work will do) won't cache at all well, so this is a very bad idea. Might improve some things, but not the really important ones.
The chances of the average hotel wifi user even knowing what SSH means is close to zero.
{{citation-needed}}
As an aside, I was sitting in JFK airport (terminal 4) a few days ago and having a shocking time getting a good internet connection - even from my own Mifi. I fired up inSSIDer, and within a few seconds it had detected 122 AP's...
Yup; B/G/N congestion is a real problem. Nice that the latest generation of both mifi's and cellphones all seem to do A as well, in addition to current-gen business laptops (my x61 is almost 5 years old, and speaks A).
I think by A you actually mean 5Ghz N. A doesn't do much better than G, though you still have the advantage of wider channels and less frequency congestion with other uses.
Owen