| 摘要 |
<p>A control method and device for wireless multi-hopping network congestion performs a local retransmission when losing packet according to the wireless path state information, and gives a notice of the retransmission to a transmitting end of the data transfer layer, to avoid the unnecessary TCP retransmission. The method includes obtaining the path information of the wireless multi-hopping network, tagging the state of the wireless path as available, unavailable, congested or erroneous according to the wireless multi-hopping path information (101); receiving an acknowledgement notice ACK packet from a receiving end of the wireless path, if the state of the tagged wireless path is not unavailable, performing a local retransmission of the transfer layer data TCP Data packet corresponding to the first duplicate acknowledgement notice Dup ACK in higher priority (102); and giving a notice of the local retransmission event to the transmitting end of the data transfer layer (103).</p> |
