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[Karlnet] Turbocell access to media

To: Karlnet Mailing List <karlnet@wispnotes.com>
Subject: [Karlnet] Turbocell access to media
From: Peter Dordik <dordik@presov.viapvt.sk>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Thu, 22 Jan 2004 21:16:25 +0100
List-post: <mailto:karlnet@WISPNotes.com>
So, after some reading of materials about CSMA/CA and Turbocell i have this 
opinion:

1.) When Base station is set as non-Polling, then this Base Station and her 
satellites are using CSMA/CA. With or without ACK? This mode is not aggressive 
to another 802.11b devices that are working in range of our network. In this 
mode is possible to set up several base stations with sector antennas at same 
antenna mast operating at same channel.

2.) When Base station is set as Polling or ISP Base station, then CSMA/CA is 
not used and Base Station and her "polled" Satellites are transmitting data 
regardless if medium is free or not (no carrier sense). This mode is very 
aggresive to adjacent 802.11b devices and very aggresive to another independent 
turbocell network too, because there is no cooperation.

3.) If there is point to point link with two satellites (master and slave), 
what mode is used: polling or non-Polling? Are there any wait states if medium 
is not free?

Please, feel free to confirm or fix me.

Regards
       Peter


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