| Publisher | Institute of Electrical and Electronics Engineers | ||
|---|---|---|---|
| Format | 980.2KB PDF | Date added | 18 Sep 2006 |
| Topics | TCP - IP, Mobile - Wireless Communications | ||
| Downloads | 4 | ||
With the help of Mobile IP/IPv6 and soft handoff, on-going TCP sessions can remain active and handoff packet loss can be avoided. However, TCP still faces several performance degradation issues due to the disparities in bandwidth and propagation delay between different access networks. Particularly, during vertical handoffs, some undesirable phenomenon may erroneously trigger TCP congestion control actions and thus degrade TCP performance. This paper tackle the spurious timeout problem frequently associated with handovers from fast to slow links. The paper proposes three network-layer schemes: Fast ACK, Slow ACK and ACK Delaying. These schemes require only minor modifications to the network layer of mobile receivers and no change to the TCP protocol and the TCP sender.
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