Re: How bad are wireless speeds?
- From: floyd@xxxxxxxxxx (Floyd L. Davidson)
- Date: Sat, 16 Jul 2005 14:09:37 -0800
"Suburban" <sub.this@xxxxxxxx> wrote:
>I just got a di-524 dlink router, certainly not the cream of the crop but if
>it says 54mbs on the box I expect it to work that way.
That's comparing apples to oranges.
Before deciding what to expect you should go to the effort of
learning exactly what is running at 54 Mbps, and how that
affects your use. When you make "measurements", you need to
determine what you are measuring, so that you don't measure
apples and compare to oranges...
All of this information is available on the web... but you
will have to make an effort to find it. Use google, and read.
About all I can do is point you at some basics...
>Anyways everything is
>setup in my room I have good connectivety, strong 54mbs connection to the
>wireless router.
What is a "strong 54mbs connection"?
>I have WEP enabled on the router too, but I run some file
>transfer tests.
So, you measured through put!
>On wired-wired my speeds where 80mbits solid,
You accept that on a 100 Mbps ethernet! Why??? ;-)
>On wireless-wired speeds dropped to 11mbits (this would be 802.11b speeds
>right?) even though my connection was at 54mbs.
Do you mean your throughput was 11 Mbps? (How many other
connections were currently transferring data at the time you
measured this? And just how did you determine it was 11 Mbps?)
>I understand WEP can reduce
>speeds.. but this much?
Nope, it don't.
>On wireless-wireless it got even worse. 5mbits!!
Notice the nice round comparison? Twice as many connections
transferring data, exactly half the throughput? Works pretty
close to that every time.
Wireless 802.11g provides 54 Mbps total but spreads it over
however many connections there are. It is also simplex, so it
goes at 54 Mbps in one direction first, and then at 54 Mbps in
the other direction. The overhead is large, and the result is
that throughput just about half the single direction data rate.
You won't see better than about 23-26 Mbps over a 54Mbps wireless
link. If you have two connections, that will be divided between
them, and you will see about 12 Mbps.
I can't tell what is causing your initial drop to 10-11 Mbps,
but it could be a number of things. It can't be that it is
operating as 802.11b, because you necessarily have at least a
24Mbps connection.
--
Floyd L. Davidson <http://web.newsguy.com/floyd_davidson>
Ukpeagvik (Barrow, Alaska) floyd@xxxxxxxxxx
.
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