Improving TCP performance during soft vertical handoff

Haijie Huang, Jianfei Cai

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

31 Citations (Scopus)

Abstract

With the help of Mobile IP/IPv6, on-going TCP sessions can remain active when the mobile node hands overfrom one network to another. In particular, in a soft vertical handoff, packet loss due to the switching of networks can be avoided. However, TCP still faces several performance degradation issues due to the change of network bandwidth and propagation delay. During vertical handoff, some undesirable phenomenon may erroneously trigger TCP congestion control operations and thus degrade the TCP performance. In this paper, we study the TCP behaviors during soft vertical handoff from fast link to slow link. In particular; wefocus on TCP timeout problem caused by increased network round-trip time, and propose three schemes (fast response, slow response and ACK delaying) to solve this problem. These schemes require only minor modifications on network layer of the end hosts, without any change on TCP and intermediate network routers. Simulation results show that these schemes can effectively improve the TCP performance during soft vertical handoff.

Original languageEnglish
Title of host publicationProceedings - 19th International Conference on Advanced Information Networking and Applications, AINA 2005
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages329-332
Number of pages4
ISBN (Print)0769522491, 9780769522494
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventInternational Conference on Advanced Information Networking and Applications 2005 - Tamkang University, Taipei, Taiwan
Duration: 28 Mar 200530 Mar 2005
Conference number: 19th
http://www.aina-conference.org/2005/

Publication series

NameProceedings - International Conference on Advanced Information Networking and Applications, AINA
Volume2
ISSN (Print)1550-445X

Conference

ConferenceInternational Conference on Advanced Information Networking and Applications 2005
Abbreviated titleAINA 2005
CountryTaiwan
CityTaipei
Period28/03/0530/03/05
Internet address

Cite this

Huang, H., & Cai, J. (2005). Improving TCP performance during soft vertical handoff. In Proceedings - 19th International Conference on Advanced Information Networking and Applications, AINA 2005 (pp. 329-332). (Proceedings - International Conference on Advanced Information Networking and Applications, AINA; Vol. 2). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/AINA.2005.216