| Publisher | University of Stuttgart | ||
|---|---|---|---|
| Format | 351.6KB PDF | Date added | 27 Feb 2004 |
| Topics | TCP - IP, Mobile - Wireless Communications | ||
| Downloads | 0 | ||
This paper studies the impact of variable transmission delays on the Transmission Control Protocol (TCP). Sudden delay variations, which are not uncommon in mobile networks, may degrade the performance since they may cause spurious TCP timeouts. The most important parameter in this context is the TCP retransmission timer. This paper analyzes TCP's round-trip time estimation for bulk data traffic over wireless links. The main contribution is a new analytical model that accurately predicts the timeout duration from given network parameters. As a first result, the model shows that the round-trip time sampling rate has a significant impact on the timer characteristics.
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