 It detects wireless-related problems (such as lost or corrupted segments due to multipath fading or high BER) with the use of timeouts and duplicate acknowledgments.WTCP then attempts to mitigate the problem by retransmitting a lost segment only once, until it receives an acknowledgment back from the mobile host that it was received.Any other lost segments will have to wait in the WTCP's buffer until the first one is confirmed to have been received.