I- continue csma
And idle data channel, transmits, to wait until the busy idle channel,
Unsustainable csma
And idle data channel, transmits; busy for some time and then re-testing channel
p- continued csma
A slotted channel, the channel busy places probability p to transmit data to a probability 1-p postponed to the next time slot, then the algorithm; and until another station or transmitting data conflict. The channel is busy until the next time slot