A Packet Forwarding Control Scheme for TCP Performance Improvement in Mobile NetWorks 


Vol. 27,  No. 4, pp. 353-364, Apr.  2002


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  Abstract

To prevent the performance degradation of TCP due to packet loss in the smooth handoff by the route optimization extension of Mobile IP protocol, a buffering of packets at a base station is needed. A buffering of packets at a base station recovers the packets dropped during the handoff by forwarding the buffered packets at the old base station to the mobile user. But, when the mobile user moves to a new foreign network which is connected to a congested router, the buffered packets forwarded by the old base station are dropped and the link utilization performance degraded due to increased congestion by the forwarded packets. In this paper, when the mobile user moves to a new foreign network which is connected to a congested router, we propose a packet forwarding control scheme required for the old base station to improve TCP performance in mobile networks. The old base station forwards or discards the buffered packets during handoff by proposed packet forwarding control scheme based on congestion states of RED(Random Early Detection) at the congested router. Simulation results show that link utilization performance can be improved by applying proposed packet forwarding control scheme.

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  Cite this article

[IEEE Style]

K. Hur, D. Eom, S. H. Lee, K. H. Tchah, "A Packet Forwarding Control Scheme for TCP Performance Improvement in Mobile NetWorks," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 353-364, 2002. DOI: .

[ACM Style]

Kyeong Hur, Doo-Seop Eom, Seung Hyun Lee, and Kyun Hyon Tchah. 2002. A Packet Forwarding Control Scheme for TCP Performance Improvement in Mobile NetWorks. The Journal of Korean Institute of Communications and Information Sciences, 27, 4, (2002), 353-364. DOI: .

[KICS Style]

Kyeong Hur, Doo-Seop Eom, Seung Hyun Lee, Kyun Hyon Tchah, "A Packet Forwarding Control Scheme for TCP Performance Improvement in Mobile NetWorks," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 4, pp. 353-364, 4. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880