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An Enhanced Buffer Management for Handover in WiMedia WLP-Based Mobile IP Networks

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Abstract

Performance of TCP can be severely degraded in WLP-based Mobile IP networks due to packet loss. It is not related to network congestion that occurs frequently during inter-subnetwork handover of user. To solve this problem, packet buffering method recovers packets dropped during handover by forwarding packets buffered at old BS to mobile nodes. But if a mobile node moves to a congested BS of a new foreign subnetwork, buffered packets will be dropped. And TCP transmission performance of the mobile node degrades severely. In this paper, we propose a buffer management with considering handover to provide a new disposal standard for handover packets. Simulation results show that the proposed buffer management provides a link utilization improvement in congested wireless links.

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Abbreviations

avg_q:

Average queue size

BS:

Bridge station

CH:

Correspondent host

FA:

Foreign agent

HA:

Home agent

HRED:

Handover-based RED

MN:

Mobile node

mws:

Maximum window size

RED:

Random early detection

WLP:

WiMedia logical link protocol

WSS:

WLP service set

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Acknowledgments

This research was supported in part by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2009-0093828) and in part by the Ministry of Science, ICT and Future Planning (MSIP), Korea, under Grant IITP-2015-H8601-15-1006 of the Convergence Information Technology Research Center (C-ITRC) program supervised by the Institute for Information and Communications Technology Promotion (IITP).

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Authors and Affiliations

  1. Institute of Information Science and Engineering Research, Mokpo National University, Dorim-ri, Cheonggye-myeon, Muan-gun, Mokpo, Jeollanam-do, 534-729, Korea

    Seung Beom Lee

  2. Department of Computer Education, Gyeongin National University of Education, Gyesan-Dong San 59-12, 45 Gyodae-Gil, Gyeyang-Gu, Incheon, 407-753, Korea

    Kyeong Hur

  3. Department of Information and Electronics Engineering, Mokpo National University, Dorim-ri, Cheonggye-myeon, Muan-gun, Mokpo, Jeollanam-do, 534-729, Korea

    Seong Ro Lee

Authors
  1. Seung Beom Lee
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  2. Kyeong Hur
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Correspondence to Kyeong Hur.

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Lee, S.B., Hur, K. & Lee, S.R. An Enhanced Buffer Management for Handover in WiMedia WLP-Based Mobile IP Networks. Wireless Pers Commun 85, 2711–2725 (2015). https://doi.org/10.1007/s11277-015-2929-6

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  • DOI: https://doi.org/10.1007/s11277-015-2929-6

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