RE: [nycwireless] Too Many Aps - Interference

2005-08-02 Thread Hans Zaunere


Anthony Townsend wrote:
> There's not much you can do - New York was lucky enough to be the
> first place to see near-seamless proliferation of open hotspots We
> are also the first place to see over-saturation of 2.4 Ghz.
> 
> I've ben surveying people informally about this and have really
> noticed a big upswing in incidents in the last 6 months. It's
> dissapointing - I didn't expect this "tragedy of the commons" to
> happen so quickly. I'm very worried about what happens when the FCC
> realizes this is happening, and likely to happen elsewhere.
> 
> NYCwireless needs to be involved in solving this problem, either
> technically or socially. That is the only way to avoid a regulatory
> clampdown.

Agreed - and I'd be interested in helping this problem however I can.  It
seems that, at least in NYC, hotspots should be replaced with hot-zones,
meaning coordinated coverage of an area as Robin-David Hammond pointed out,
thus reducing frequency clutter.


---
Hans Zaunere
President, New York PHP
http://www.nyphp.com
+1 212 213 1131


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Re: [nycwireless] Too Many Aps - Interference (fwd)

2005-08-02 Thread Hammond, Robin-David%KB3IEN


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  Linux: Where do you want to go today?
  BSD: Are you guys coming, or what?


Robin-David Hammond KB3IEN
www.aresnyc.org.

-- Forwarded message --
Date: Tue, 2 Aug 2005 14:48:18 + (UTC)
From: "Hammond, Robin-David%KB3IEN" <[EMAIL PROTECTED]>
To: Hans Zaunere <[EMAIL PROTECTED]>
Cc: nycwireless@lists.nycwireless.net
Subject: Re: [nycwireless] Too Many Aps - Interference

1) Frequency Co-ordination.

You will have to eliminate some Access Points and agree to let eachother on 
which ever access point you desire. Turning off all but one AP at a time and 
site surveying each appartment will help. It may be possible to cover 90% of 
the desired service area with 5 or 6 APs, on less overlapping channels. Then 
for the 10 % service area that remains use attenuated (weaked) signals to cover 
the nooks and crannies without elevating the background noise excessively. Okay 
so sometimes you have to share your bandwidth but at least you will have 
bandwidth.


If your neighbours are not yet ready for this solution, you can keep buying 
more amps and antennae until they cannot use thier APs at all and then 
arbitrate.


2) Lead Paint, about 10mm could do it.


BTW.
Plugging one WiFi device into another isnt recomened.


On Thu, 28 Jul 2005, Hans Zaunere wrote:


Date: Thu, 28 Jul 2005 10:00:43 -0400
From: Hans Zaunere <[EMAIL PROTECTED]>
To: nycwireless@lists.nycwireless.net
Subject: [nycwireless] Too Many Aps - Interference


At my apartment, there are at least 14 APs at any given time, and all have
fairly strong signals, and are 802.11g.  Needless to say, the airwaves
around my apartment are packed.

As a result, my wireless signal will often drop out, and I'm figuring the
only reason is because of the interference.  I've restarted, double checked,
etc. my AP (Linksys WRTG54g) and all looks to be fine.  If I plug into the
AP, it's always fine.

I've tried changing channels, but to limited success.  On each of the 1, 6
and 11 channels, there are at least 3 other APs.  When I switch to a channel
in between, signal quality actually looks worse.  I've also changed between
B only and G only mode, but with little result.

So, what can someone do to get a reliable wireless signal in these types of
environments?  Are there any tips or online resources that describe the
advanced settings of the WRT54g that might improve my performance?  Any
other tips or resources?  And, if I were to buy a new AP, would it make a
difference, and what would some recommendations be?


Thanks,

---
Hans Zaunere
President, New York PHP
http://www.nyphp.com


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www.aresnyc.org.
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Re: [nycwireless] Too Many Aps - Interference

2005-08-02 Thread Anthony Townsend


There's not much you can do - New York was lucky enough to be the  
first place to see near-seamless proliferation of open hotspots We  
are also the first place to see over-saturation of 2.4 Ghz.


I've ben surveying people informally about this and have really  
noticed a big upswing in incidents in the last 6 months. It's  
dissapointing - I didn't expect this "tragedy of the commons" to  
happen so quickly. I'm very worried about what happens when the FCC  
realizes this is happening, and likely to happen elsewhere.


NYCwireless needs to be involved in solving this problem, either  
technically or socially. That is the only way to avoid a regulatory  
clampdown.



On Jul 28, 2005, at 7:00 AM, Hans Zaunere wrote:



At my apartment, there are at least 14 APs at any given time, and  
all have

fairly strong signals, and are 802.11g.  Needless to say, the airwaves
around my apartment are packed.

As a result, my wireless signal will often drop out, and I'm  
figuring the
only reason is because of the interference.  I've restarted, double  
checked,
etc. my AP (Linksys WRTG54g) and all looks to be fine.  If I plug  
into the

AP, it's always fine.

I've tried changing channels, but to limited success.  On each of  
the 1, 6
and 11 channels, there are at least 3 other APs.  When I switch to  
a channel
in between, signal quality actually looks worse.  I've also changed  
between

B only and G only mode, but with little result.

So, what can someone do to get a reliable wireless signal in these  
types of
environments?  Are there any tips or online resources that describe  
the
advanced settings of the WRT54g that might improve my performance?   
Any
other tips or resources?  And, if I were to buy a new AP, would it  
make a

difference, and what would some recommendations be?


Thanks,

---
Hans Zaunere
President, New York PHP
http://www.nyphp.com


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nycwireless/

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Re: [nycwireless] Too Many Aps - Interference

2005-08-02 Thread Hammond, Robin-David%KB3IEN

1) Frequency Co-ordination.

You will have to eliminate some Access Points and agree to let eachother 
on which ever access point you desire. Turning off all but one AP at a 
time and site surveying each appartment will help. It may be possible to 
cover 90% of the desired service area with 5 or 6 APs, on less overlapping 
channels. Then for the 10 % service area that remains use attenuated 
(weaked) signals to cover the nooks and crannies without elevating the 
background noise excessively. Okay so sometimes you have to share your 
bandwidth but at least you will have bandwidth.


If your neighbours are not yet ready for this solution, you can keep 
buying more amps and antennae until they cannot use thier APs at all and 
then arbitrate.


2) Lead Paint, about 10mm could do it.


BTW.
Plugging one WiFi device into another isnt recomened.


On Thu, 28 Jul 2005, Hans Zaunere wrote:


Date: Thu, 28 Jul 2005 10:00:43 -0400
From: Hans Zaunere <[EMAIL PROTECTED]>
To: nycwireless@lists.nycwireless.net
Subject: [nycwireless] Too Many Aps - Interference


At my apartment, there are at least 14 APs at any given time, and all have
fairly strong signals, and are 802.11g.  Needless to say, the airwaves
around my apartment are packed.

As a result, my wireless signal will often drop out, and I'm figuring the
only reason is because of the interference.  I've restarted, double checked,
etc. my AP (Linksys WRTG54g) and all looks to be fine.  If I plug into the
AP, it's always fine.

I've tried changing channels, but to limited success.  On each of the 1, 6
and 11 channels, there are at least 3 other APs.  When I switch to a channel
in between, signal quality actually looks worse.  I've also changed between
B only and G only mode, but with little result.

So, what can someone do to get a reliable wireless signal in these types of
environments?  Are there any tips or online resources that describe the
advanced settings of the WRT54g that might improve my performance?  Any
other tips or resources?  And, if I were to buy a new AP, would it make a
difference, and what would some recommendations be?


Thanks,

---
Hans Zaunere
President, New York PHP
http://www.nyphp.com


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 Linux: Where do you want to go today?
 BSD: Are you guys coming, or what?


Robin-David Hammond KB3IEN
www.aresnyc.org.
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RE: [nycwireless] Too Many Aps - Interference

2005-07-28 Thread Hans Zaunere


On , [EMAIL PROTECTED] wrote:
> Thanks Bora - I guess I might be in the market for a new AP
> that supports
> 'a' (my laptop already does).  If anyone knows of any wireless setting
> tweaks that would help, it'd be greatly appreciated too.

Another thought...

I've already locked my AP down, based on MAC filtering - so I am the only
one on my AP.  Prior to locking it down, there would be 10 peer-to-peer
clients using my AP within an hour.  I guess they really like open APs down
here in the LES :)

So my other question is this: would adding encryption reduce interference at
all?  It seems like it wouldn't have a direct effect, but frankly I'm not
sure.

Thanks,

H

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RE: [nycwireless] Too Many Aps - Interference

2005-07-28 Thread Hans Zaunere

Thanks Bora - I guess I might be in the market for a new AP that supports
'a' (my laptop already does).  If anyone knows of any wireless setting
tweaks that would help, it'd be greatly appreciated too.

H


On , [EMAIL PROTECTED] wrote:
> Hi Hans,
> 
> > From my personal experience I could recommend you to use
> any 802.11a ap or wireless router and adapter. Since they work
> on 5GHz and usually have low range (but still good for my
> whole apartment) they are not succeptable to 2.4GHz interference.
> They are also not interferring with 2.4GHz wireless phones and the
> speed decrese of 802.11a (with theoretical bandwith of 54Mbps) is
> probably just slightly slower in reality than 802.11g (that have
> theoretical bandwith of 108Mbps). Which is also only going to affect
> your computer to computer connection since your internet connection
> is well below any wireless setup available bandwith. 802.11a also has
> more nonoverlapping channels so that more computers can be connected
> without dropping connections (I have 11 computers connected in my
> office and they all work just fine).
> 
> You could also buy dual band tri mode (802.11a, b, g) pc card for your
> notebook so that you can connect with 802.11a at your home and with
> 802.11b, g at your office of any public hot spot.
> 
> I hope I helped a bit,
> Bora
> Micropower NY
> [EMAIL PROTECTED]
> 
> Hans Zaunere <[EMAIL PROTECTED]> wrote:
> 
> At my apartment, there are at least 14 APs at any given time,
> and all have
> fairly strong signals, and are 802.11g. Needless to say, the airwaves
> around my apartment are packed.
> 
> As a result, my wireless signal will often drop out, and I'm
> figuring the
> only reason is because of the interference. I've restarted,
> double checked,
> etc. my AP (Linksys WRTG54g) and all looks to be fine. If I
> plug into the
> AP, it's always fine.
> 
> I've tried changing channels, but to limited success. On each
> of the 1, 6
> and 11 channels, there are at least 3 other APs. When I
> switch to a channel
> in between, signal quality actually looks worse. I've also
> changed between
> B only and G only mode, but with little result.
> 
> So, what can someone do to get a reliable wireless signal in
> these types of
> environments? Are there any tips or online resources that describe the
> advanced settings of the WRT54g that might improve my performance? Any
> other tips or resources? And, if I were to buy a new AP,
> would it make a
> difference, and what would some recommendations be?
> 
> 
> Thanks,
> 
> ---
> Hans Zaunere
> President, New York PHP
> http://www.nyphp.com
> 
> 
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> NYCwireless - http://www.nycwireless.net/
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Re: [nycwireless] Too Many Aps - Interference

2005-07-28 Thread Borivoj Cvejic
Hi Hans,
 
>From my personal experience I could recommend you to use
any 802.11a ap or wireless router and adapter. Since they work
on 5GHz and usually have low range (but still good for my
whole apartment) they are not succeptable to 2.4GHz interference.
They are also not interferring with 2.4GHz wireless phones and the
speed decrese of 802.11a (with theoretical bandwith of 54Mbps) is
probably just slightly slower in reality than 802.11g (that have
theoretical bandwith of 108Mbps). Which is also only going to affect
your computer to computer connection since your internet connection
is well below any wireless setup available bandwith. 802.11a also has
more nonoverlapping channels so that more computers can be connected
without dropping connections (I have 11 computers connected in my
office and they all work just fine).
 
You could also buy dual band tri mode (802.11a, b, g) pc card for your
notebook so that you can connect with 802.11a at your home and with
802.11b, g at your office of any public hot spot.
 
I hope I helped a bit,
Bora
Micropower NY
[EMAIL PROTECTED]

Hans Zaunere <[EMAIL PROTECTED]> wrote:

At my apartment, there are at least 14 APs at any given time, and all have
fairly strong signals, and are 802.11g. Needless to say, the airwaves
around my apartment are packed.

As a result, my wireless signal will often drop out, and I'm figuring the
only reason is because of the interference. I've restarted, double checked,
etc. my AP (Linksys WRTG54g) and all looks to be fine. If I plug into the
AP, it's always fine.

I've tried changing channels, but to limited success. On each of the 1, 6
and 11 channels, there are at least 3 other APs. When I switch to a channel
in between, signal quality actually looks worse. I've also changed between
B only and G only mode, but with little result.

So, what can someone do to get a reliable wireless signal in these types of
environments? Are there any tips or online resources that describe the
advanced settings of the WRT54g that might improve my performance? Any
other tips or resources? And, if I were to buy a new AP, would it make a
difference, and what would some recommendations be?


Thanks,

---
Hans Zaunere
President, New York PHP
http://www.nyphp.com


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[nycwireless] Too Many Aps - Interference

2005-07-28 Thread Hans Zaunere

At my apartment, there are at least 14 APs at any given time, and all have
fairly strong signals, and are 802.11g.  Needless to say, the airwaves
around my apartment are packed.

As a result, my wireless signal will often drop out, and I'm figuring the
only reason is because of the interference.  I've restarted, double checked,
etc. my AP (Linksys WRTG54g) and all looks to be fine.  If I plug into the
AP, it's always fine.

I've tried changing channels, but to limited success.  On each of the 1, 6
and 11 channels, there are at least 3 other APs.  When I switch to a channel
in between, signal quality actually looks worse.  I've also changed between
B only and G only mode, but with little result.

So, what can someone do to get a reliable wireless signal in these types of
environments?  Are there any tips or online resources that describe the
advanced settings of the WRT54g that might improve my performance?  Any
other tips or resources?  And, if I were to buy a new AP, would it make a
difference, and what would some recommendations be?


Thanks,

---
Hans Zaunere
President, New York PHP
http://www.nyphp.com


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