Re: [44net] OFDM Modem

On Fri, 1 Sep 2017 18:11:03 +0200, Rob Janssen pe1chl@amsat.org wrote:

...

Y'know, there is some relevance in a significantly asynchronous circuit with this stuff.

I think the correct label is "asymmetric" but many people call it "asynchronous"...

One could go with asymmetric but Aloha was tested in two modes, asynchronous-asymmetric where the Menehune was master of the output channel and terminals contended "asynchronously" on the input without being able to hear each other and slotted Aloha where Menehune assigned time slots to terminals and they sent their data isochronally. I believe there was one slot kept open where a previously idle terminal could contend for assignment of a slot. Slotted Aloha performed better than asynchronous Aloha.