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Automatika : journal for control, measurement, electronics, computing and communications, Vol.52 No.4 March 2012. -

The increasing number of portable computers, combined with the growth of wireless services, makes supporting Internet mobility important. Since a mobile node always changes its point of attachment to the Internet, it may cross a cell boundary during data transmission process. Packets sequence disruption during handover procedure may result in decreasing network performance especially in higher layers protocols. In this paper we investigate the behavior of Mobile IP protocol in presence of route optimization procedure. We discuss the impact of handover process on packets routed from old Foreign Agent to new Foreign Agent after handover and show that using priority scheduling for packets received from the Home Agent and queued at the old Foreign Agent’s buffer after handover can reduce the number of disordered packets received at the new Foreign Agent after handover.

MIPv4; MIPv6; TCP performance; Priority scheduling; Handover

Author: Nada Ahmed Fayza - ; Suez Canal University, Faculty of Computers and Information, Ismailia, Egypt



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