Abstract

Wireless access networks in the future will be IP-based with IP mechanisms delivering packets to mobile hosts attached to the edge of the network. Standard transport protocols like UDP and TCP are designed to deliver data across fixed wired networks. Mobility of users will result in changing the terminal's point of attachment to the network, and a mobility management protocol will be responsible for delivering packets at the correct location, by tracking the user movement. The use of such a protocol is essential to the performance of transport layer mechanisms and relevant applications running on top. In this paper the performance of UDP and TCP transport protocols is evaluated, in a wireless IP access network running the BCMP local mobility management protocol. UDP and various TCP variants are employed and their suitability in such a dynamic environment is tested.

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