Comment Short description sounds a bit like DAMA (Score 4, Interesting) 130
Like it was/is sometimes used in ham-radio packet radio or in satellite communitation.
http://en.wikipedia.org/wiki/Demand_Assigned_Multiple_Access
The wikipedia description actually makes it sound a bit more complex than it actually it. In packet-radio DAMA simply meant that the central station polled each node regularly and asked it if it has queued requests. The only thing a client was allowed to send without asking back was the "I am a new client"-message.
http://en.wikipedia.org/wiki/Demand_Assigned_Multiple_Access
The wikipedia description actually makes it sound a bit more complex than it actually it. In packet-radio DAMA simply meant that the central station polled each node regularly and asked it if it has queued requests. The only thing a client was allowed to send without asking back was the "I am a new client"-message.