John Navas <spamfilter0@navasgroup.com> wrote:

> On Wed, 15 Nov 2006 20:18:13 +0100, hlexa@hotmail.com (Axel
> Hammerschmidt) wrote in <1hov0ox.1nhqle71617hj2N%hlexa@hotmail.com>:
>
> >John Navas <spamfilter0@navasgroup.com> wrote:
> >
> >> On Wed, 15 Nov 2006 18:34:17 +0100, hlexa@hotmail.com (Axel
> >> Hammerschmidt) wrote in <1houwni.1xh69001thqu04N%hlexa@hotmail.com>:
> >>
> >> >John Navas <spamfilter0@navasgroup.com> wrote:
> >> >
> >> ><snip>
> >> >
> >> >> Instead of a simple repeater you can use a wireless Ethernet bridge
> >> >> (that can support enough clients) cabled to a wireless access point on a
> >> >> different non-overlapping channel; i.e.,
> >> >
> >> >What sort of router are you assuming the Wi-Fi Router is? This router
> >> >(which the OP already has) will have to share bandwidth amongst stations
> >> >connecting directly with this router as well as the bridge.
> >>
> >> Of course. But a simple repeater only makes things (much) worse by
> >> cutting the available wireless bandwidth in half. With a remote access
> >> point on a different non-overlapping channel, full Wi-Fi bandwidth is
> >> preserved.
> >
> >Do you mean, because the repeater runs at a slower speed it will then
> >slow down the router? How would that effect bandwidth?
>
> What I mean is that a simple repeater cuts the available wireless
> bandwidth for all wireless devices (including the router) in half.

Because the Wi-Fi router has to wait for the repeater while it repeats
the packet.

> >Say the router could run at max (nom) 54 Mbps and the repeater runs at
> >27 Mbps. That slows down the router to 27 Mbps. A station connects
> >directly with the router. There's still 27 Mbps available.
>
> Per my earlier post, what actually happens is:
>
> Transmit packet 1
> Repeat packet 1
> Transmit packet 2
> Repeat packet 2
> ...
> Instead of:
>
> Transmit packet 1
> Transmit packet 2
> Transmit packet 3
> Transmit packet 4
> ...
> When the repeater is transmitting a repeat packet, the wireless network
> is unavailable to any other wireless transmitter, including the wireless
> router. That's why I recommended a remote wireless Ethernet bridge
> cabled to a wireless access point on a different non-overlapping
> channel, which avoids have the available wireless bandwidth cut in half.

OK. So the router runs at 27 Mbps with the repeater - is that constant
or only when the repeater is active?

Anyway! The router shares the available bandwidth with the station that
connects directly to the router and the repeater. The station then gets
13.5 Mbps and not 27 Mbps.

So two stations, one connected directly to the router and the other
using the repeater, each achieve 13.5 Mbps.

So much for theory. When Eye use a D-Link DWL-G700AP (access point) in
repeater mode with a Trendnet TEW-510APB (access point) the station as
often as not still connects to the Trendnet when left to itself, despite
the signal from the access point being very weak. This is the so-called
bug light problem, because the client (software) acts like a moth
entranced by a flame and unable to move away from it.