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TCP - IP White Papers

Adding Network-Layer Intelligence to Mobile Receivers for Solving Spurious TCP Timeout During Vertical Handoff

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tcp - ip

Overview 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.

Further White Paper Details
Publisher	Institute of Electrical and Electronics Engineers	File Format	PDF
Date Published	September 2006
Format	White Papers
Topics	TCP - IP, Mobile - Wireless Communications

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