>From what I know, the OLPC mesh is based on the IEEE 802.11s standard. No need 
>for any new radios, the 802.11s is an addendum to the existing 802.11a/b/g 
>standards. It adds a few more fields, a mesh routing mechanism et al (Am 
>preparing for a lecture on the 802.11s. May be, I will send out the notes)

Reading thru your e-mail, there are two vectors - the backhaul (interconnecting 
schools) and local network (interconnecting the laptops). The backhaul 
technologies can be independent of the local network. They could be the same as 
well. For example the MIT roofnet could possibly do both - there are 400mW 
wireless cards (MP-8602, http://www.yawarra.com.au/pdfs/XC-MP-WFabg-400.pdf) 
which have a span of ~40 km for backhaul, with directional antennas, of course. 
(I do not have the links, let me know if you couldn't find them)

Got to run ... Hopefully I have answered some of your questions ... Do not 
hesitate to ask questions as you think thru the various aspects of the network 
like line of sight, what is in between et al.

Cheers & good luck
<k/>


________________________________

        From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tadeu F. 
Oliveira
        Sent: Wednesday, November 08, 2006 8:13 AM
        To: [email protected]
        Subject: [OLPC Networking] Wireless Mesh tests
        
        
        Hello everybody, 

        I and a group of volunteers are creating an wireless network to 
interconnect the schools in our city, we are at this moment in a testing period 
trying to figure out witch technology to use (Wi-Fi, Wi-Max, Motorola 
canopy...) but one important goal of this project is to be compatible with the 
OLPC laptops.

                In the laptop.org Wiki I have founded this 
http://wiki.laptop.org/go/Wireless saying: "There is new firmware with mesh 
routing support" and that the chip Marvell 88W8388 is compatible with the 
802.11b/g great! But my question is: The mesh feature needs some different 
equipment to support it? I mean in the radio-base section is it necessary to 
have some different thing than a 802.11b/g radio?

                When will the Laptops be available to test the wireless network 
features? I really would like to make some tests with it in my area. I do not 
intend to keep it with me for too much time, I just need to test it so I would 
put 2 or three of it working and after the tests would deliver it back to 
anyone who needs to test it too.

                Greetins from Brazil

        Sorry for my poor English

        Thank you all

         
        ---------------------------------------- 
        Tadeu F. Oliveira 
        Técnico em Informática 
        Acadêmico Ciência da Computação Unit-SE 
        http://notnet.blogspot.com <http://notnet.blogspot.com%20> 
        ---------------------------------------- 


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