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Improving TCP Performance During the Intra LTE Handover
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9810-3478
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre. (System Identification Group)ORCID iD: 0000-0002-9368-3079
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2009 (English)In: GLOBECOM 2009 - 2009 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-8, 2009, 5343-5350 p.Conference paper, Published paper (Refereed)
Abstract [en]

Ensuring a seamless connection when users are moving across radio cells is essential to guarantee a high communication quality. In this paper, performance of TCP during the handover in a Long Term Evolution (LTE) network is investigated. Specifically, mobile users with high bit rates TCP services are considered, and the impacts of the intra LTE handover over their perceived throughput are studied. Due to the mobility of the users across radio cells, the high bandwidth required, and possible network congestions, it is shown that the handover may cause sudden degradation of the quality of the communication if the process is not correctly controlled. To alleviate these problems, three solutions are proposed: fast path switch, handover prediction, and active queue management. The first two solutions avoids excessive delay in the packet delivery during the handover, whereas the second solution acts at the transport network with an active queue management. Simulation results, obtained by an extension of the ns-2 simulator, show that the proposed solutions present advantages, and that the handover prediction used with the active queue management increases TCP performance significantly.

Place, publisher, year, edition, pages
2009. 5343-5350 p.
Series
IEEE Global Telecommunications Conference (Globecom), ISSN 1930-529X
Keyword [en]
NETWORKS, THROUGHPUT
National Category
Communication Systems
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-26512DOI: 10.1109/GLOCOM.2009.5425540ISI: 000280579102060Scopus ID: 2-s2.0-77951595701ISBN: 978-1-4244-4147-1 (print)OAI: oai:DiVA.org:kth-26512DiVA: diva2:387411
Conference
IEEE Global Telecommunications Conference (GLOBECOM 09), Honolulu, HI, NOV 30-DEC 04, 2009
Funder
Swedish Research Council, 621-2001-2110
Note
QC 20110114Available from: 2011-01-14 Created: 2010-11-25 Last updated: 2012-02-02Bibliographically approved

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Fischione, CarloHjalmarsson, HåkanJohansson, Karl Henrik

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