HSMM and balloons

Louis Mamakos louie at transsys.com
Sun Oct 21 08:01:10 CDT 2012

The original post posited using existing, cheap Wi-Fi routers for the application.  Sure, if you use a different RF MAC, the story could all be different.

I just had a flashback to the AX.25 experience: using a protocol initially defined for a point-to-point, contention free link level in an multi-point, ALHOA-like contention based link layer and wondering how crappy it works. 


On Oct 21, 2012, at 4:00 AM, Chip Fetrow <tacos at fetrow.org> wrote:

> Sorry, I didn't bother to read the Wiki post as this is a very well known problem, and I doubt I am missing anything.
> The answer is simple, use WiMax. so the wireless router controls the various "nodes" in the filed.  The hidden transmitter problem is no longer a problem when each transmitter must be polled before they transmit.
> On the other hand, it is a shared band, so you have a LOT of other users in the band.
> --chip
> On Oct 21, 2012, at 12:32 AM, tacos-request at amrad.org wrote:
>> Message: 3
>> Date: Sat, 20 Oct 2012 16:54:57 -0400
>> From: Louis Mamakos <louie at transsys.com>
>> Subject: Re: HSMM and balloons
>> Not if you're using 802.11 Wi-Fi radios at 2.4GHz.
>> http://en.wikipedia.org/wiki/Hidden_node_problem
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