Suppose there are 4 nodes sharing a broadcast channel using TDMA protocol. Suppose at time t=0: Node 1 has three frames to transmit, Node 2 has two frames to transmit, Node 3 has no frame, Node 4 has...

Suppose there are 4 nodes sharing a broadcast channel using TDMA protocol. Suppose at time t=0:

Node 1 has three frames to transmit,

 Node 2 has two frames to transmit,

 Node 3 has no frame,

Node 4 has four frames to transmit.

The length of time slot is 2 seconds whereas time needed to transmit one frame is 1 second.  Explain how TDMA will work and how much time will be taken to transmit all of these frames?