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Downlink TCP Performance Enhancement at Handoff for FMIPv6-enabled Nodes

Summary: Downlink TCP Performance Enhancement at
Handoff for FMIPv6-enabled Nodes
Jorge Espi, Robert Atkinson, David Harle and Ivan Andonovic
Centre for Intelligent Dynamic Communications
University of Strathclyde
Glasgow, United Kingdom
{jorge.espi, r.atkinson, d.harle, i.andonovic}@eee.strath.ac.uk
Colin Arthur
Edinburgh, United Kingdom
{colin arthur}@agilent.com
Abstract--TCP's downlink performance during FMIPv6-
enabled IEEE802.11g handoff is examined. The use of a user-
initiated Handoff Notification, sent prior to handoff, is proposed.
Therefore, the correspondent node is aware of the handoff-
induced disruption, hence avoiding dropping the congestion
window size and triggering Fast Retransmission mechanisms.
During handoff, it continues to send data packets which are
buffered by the new access router. After handoff, the user notifies
the handoff completion to the correspondent so that normal TCP


Source: Atkinson, Robert C - Department of Electronic and Electrical Engineering, University of Strathclyde


Collections: Engineering