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Q: WiMAX or Wi-Fi Neighborhood Wireless Network (How To and How Much) ( No Answer,   1 Comment )
Question  
Subject: WiMAX or Wi-Fi Neighborhood Wireless Network (How To and How Much)
Category: Computers > Wireless and Mobile
Asked by: jlb0001-ga
List Price: $60.00
Posted: 21 Jul 2005 09:14 PDT
Expires: 20 Aug 2005 09:14 PDT
Question ID: 546231
Our neighborhood association wants to offer wireless internet access. 
We cover a 1 square mile area.  We have a cell tower and a school
located nearby, either of which are potential locations to place a
WiMAX access point.  We need to know:

 (1) What vendors we can buy the needed equipment from (in the next 6
     month time frame)?
 (2) What equipment is needed?
 (3) What devices are needed in each home to connect to the network?
 (4) How much does this equipment cost?
 (5) Any how-to guides to installing a WiMAX network in a neighborhood
     setting and the issues that we might run into.

I realize this has some open-ended issues that will require some back
and forth.  I *think* I've priced this query appropriately, but PLEASE
let me know if more is needed to come up with a solid response to this
question.  Also feel free to ask for clarification!

Request for Question Clarification by easterangel-ga on 21 Jul 2005 16:36 PDT
Hi!

It will be hard to determine if such vendors can indeed deliver in a 6
months time frame. Would a simple list of vendords be enough for
number 1 and then you can just ask them if these products are
deliverable in 6 months?

Thanks!

Clarification of Question by jlb0001-ga on 21 Jul 2005 19:45 PDT
Thanks easterangel-ga for the question.  In #1, I can accept a list of
vendors, but I would like to know some specifics on what products they
are offering and their expected time to market.  As I understand it,
WiMAX products are already available, they just can't be guaranteed to
be interoperable b/c they aren't yet certified.  That said, I will not
ask you to pull a rabit out of a hat.  If the info is not out there at
the level I would like it to be, then that is simply the answer and I
accept that.
Answer  
There is no answer at this time.

Comments  
Subject: Re: WiMAX or Wi-Fi Neighborhood Wireless Network (How To and How Much)
From: gotwireless-ga on 24 Jul 2005 19:40 PDT
 
(1) What vendors we can buy the needed equipment from (in the next 6
     month time frame)?
 (2) What equipment is needed?
 (3) What devices are needed in each home to connect to the network?
 (4) How much does this equipment cost?
 (5) Any how-to guides to installing a WiMAX network in a neighborhood
     setting and the issues that we might run into.

jlb0001-ga,

Hello!  With as many people possible in a square mile you will need
multiple egress points to keep latency low and have QOS to all
subscribers.  The fastest speed possible for any wireless network is
the slowest internet connection.

What does this mean?  If your backbone is a 1Mb pipe then that is the
fastest possible...divided by the number of users at any given time. 
Another consideration would be the number of hops required to the net.
 Every "hop" will decrease the maximum possible speed by one half.

It would be wise to have a site survey done of your neighborhood and
have a masterplan drawn up in which to set up the network.

On to your questions...

1-2)  Consider this one to be the foundation of the whole process. 
These units will be the needed egress points to provide the QOS that
you will want to have.  They will need to handle the wireless signals
from multiple clients.  These units will be outside and will need to
operate in freezing and sweltering temperatures (depending on your
locale).  You "get what you pay for".  I would plan on about $7000 per
unit.  We have used several at the Ft. Meyers, Florida airport and
they have worked extremely well.  Depending on the layout of the
addition, other smaller AP's would be required to cover dead spots
because of buildings, houses, older larger trees (especially in the
spring and summer because of the leaves), etc.  I consider these units
to be the best on the market.  You can view their website at
www.belairnetworks.com

3-4)  All that is required in each home at the very minimum is a
wireless card.  As is used in any laptop -- if the client is close to
an access point this would suffice.  If not, I would recommend a senao
card that is 200mw. Again, we have used these cards and consider them
the best on the market.  The further a resident from the access point
then you would want to look at an external antenna.  Prices -- 200mw
wireless card is about $75.  External antenna is about $35, depending
on the type.

5) All this is based on 802.11b/g as WiMax is not standardized and not
available until the end of the year (last I know).


Please feel free to question me on any of this or ask deeper questions
as they arise.

Dave

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