TCP throughput improvement for semi-soft & soft handoff

Tae Chul Hong, In Ho Roh, Young Yong Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution


As wireless networks are evolving to IP based network, issues to support micro mobility becomes more and more important. One of the prominent solutions to support mobility management is Cellular IP proposed by Columbia University. TCP performance with hard handoff and semi-soft handoff was evaluated by authors of Cellular IP. However, it’s not well known that how TCP performs with Cellular IP and soft handoff. In this paper, we evaluate performance of TCP with various handoff schemes and find that TCP performs well with soft handoff, in general. However, it is observed that combining soft handoff and in-sequence transport of TCP may cause throughput to decrease substantially. We propose method to improve TCP performance with soft handoff by delayed ACK and prediction of RTO. Simulation results show effectiveness of our scheme.

Original languageEnglish
Title of host publicationInformation Networking
Subtitle of host publicationWireless Communications Technologies and Network Applications - International Conference, ICOIN 2002, Revised Papers
EditorsIlyoung Chong
PublisherSpringer Verlag
Number of pages10
ISBN (Electronic)3540442553, 9783540442554
Publication statusPublished - 2002
EventInternational Conference on Information Networking, ICOIN 2002 - Cheju Island, Korea, Republic of
Duration: 2002 Jan 302002 Feb 1

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


OtherInternational Conference on Information Networking, ICOIN 2002
Country/TerritoryKorea, Republic of
CityCheju Island

Bibliographical note

Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 2002.

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Computer Science(all)


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