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Old 11-15-2006, 08:25 PM
John Navas
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Default Re: extending range: torn between "expensive but supposedly safe" and "risky, but cheap and geekishly rewarding"

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.

>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.

--
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