Q10Mobile Computing
Question
Explain the hidden and exposed terminal problem in brief.
Answer
The hidden terminal problem occurs when two nodes cannot hear each other but send data to the same receiver, causing collisions. The exposed terminal problem prevents a node from sending data because it mistakenly thinks the medium is busy.
The hidden terminal problem occurs when node A and node C both want to send data to node B, but they are out of range of each other. They transmit simultaneously, causing a collision at B. The exposed terminal problem occurs when a node is prevented from sending packets to other nodes because it hears a neighboring transmission and mistakenly concludes that the medium is busy, even though the intended receiver is out of the interfering node's range.