Cross-layer design and analysis of wireless profiled TCP for vertical handover

Humphrey Rutagemwa, Sangheon Pack, Xuemin Shen, Jon W. Mark

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

5 Citations (Scopus)


In this paper, we consider downward and upward vertical handovers in integrated wireless LAN and cellular networks, and address Wireless Profiled TCP premature timeouts due to steep increase of round-trip time and false fast retransmit due to packet reordering. Specifically, we develop a mobile receiver centric loosely coupled cross-layer design, which is easy to implement and deploy, backward compatible with the Wireless Application Protocol version 2 (WAP 2.0) architecture, and robust in the absence of cross-layer information. We propose two proactive schemes which prevent false fast retransmit by equalizing the round-trip delay experienced by all packets and suppress the premature timeouts by carefully inflating retransmission timeout time. We conduct extensive simulations to evaluate the performance in downward and upward vertical handovers. It is demonstrated that the proposed schemes significantly improve the performance in a wide range of network conditions.

Original languageEnglish
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Number of pages5
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: 2007 Jun 242007 Jun 28

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486


Other2007 IEEE International Conference on Communications, ICC'07
Country/TerritoryUnited Kingdom
CityGlasgow, Scotland

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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