Adapting TCP for vertical handoffs in Wireless Networks

Laila Daniel; Markku Kojo

doi:10.1109/LCN.2006.322084

Adapting TCP for vertical handoffs in Wireless Networks

Laila Daniel, Markku Kojo

Avdelningen för datavetenskap

Forskningsoutput: Kapitel i bok/rapport/konferenshandling › Konferensbidrag › Vetenskaplig › Peer review

Sammanfattning

With the growing use of multiradio mobile terminals a vertical handoff between different wireless access technologies is becoming increasingly common. The vertical hand-off may result in a significant change in the access link characteristics that can affect the performance of TCP dramatically as its behaviour depends on the end-to-end path properties that also change consequently. We propose a number of simple enhancements to the TCP sender algorithm which make use of explicit information about the change in the link characteristics due to handoff. We study the effectiveness of the enhancements in a simulated WLAN-GPRS environment with different handoff scenarios. The enhancements are shown to improve TCP performance significantly

Originalspråk	engelska
Titel på värdpublikation	31st IEEE Conference on Local Computer Networks, November 14-16, Tampa, Florida, USA : IEEE 2006
Antal sidor	8
Förlag	IEEE
Utgivningsdatum	2006
Sidor	151-158
ISBN (tryckt)	1-4244-0419-3
DOI	https://doi.org/10.1109/LCN.2006.322084
Status	Publicerad - 2006
MoE-publikationstyp	A4 Artikel i en konferenspublikation
Evenemang	Annual IEEE Conference on Local Computer Networks - Tampa, FL, Förenta Staterna (USA) Varaktighet: 14 nov. 2006 → 16 nov. 2006 Konferensnummer: 31st

Bibliografisk information

1-4244-0419-3;

Vetenskapsgrenar

113 Data- och informationsvetenskap

Åtkomst av dokument

10.1109/LCN.2006.322084

Citera det här

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abstract = "With the growing use of multiradio mobile terminals a vertical handoff between different wireless access technologies is becoming increasingly common. The vertical hand-off may result in a significant change in the access link characteristics that can affect the performance of TCP dramatically as its behaviour depends on the end-to-end path properties that also change consequently. We propose a number of simple enhancements to the TCP sender algorithm which make use of explicit information about the change in the link characteristics due to handoff. We study the effectiveness of the enhancements in a simulated WLAN-GPRS environment with different handoff scenarios. The enhancements are shown to improve TCP performance significantly",

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