A new soft handover mechanism using DCHs in high-speed downlink packet access networks

Tae Hoon Lee, Sung Hoon Seo, Joo Seok Song

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

1 Citation (Scopus)

Abstract

In 3GPP (Third Generation Partnership Project) Release 5 (R5), HSDPA (High-Speed Downlink Packet Access) has been standardized to enhance the data rate of downlink packet transmission on top of WCDMA (Wideband Code Division Multiple Access) network. Even HSDPA supports up to 10 Mbps data rate through HS-DSCHs (High Speed- Downlink Shared Channels), an UE (User Equipment) suffers from significant handover latency since HSDPA standard does not supporting soft handover. Therefore, in this paper, we propose a new soft handover mechanism for HSDPA to reduce the handover latency by utilizing DCH (Dedicated Channel) instead of HS-DSCH. Simulation results show that the proposed soft handover mechanism reduces the packet IAT (Inter Arrival Time) less than 15 msec while HSDPA's hard handover suffers from 190 msec packet IAT. It means that the proposed mechanism guarantees the minimum packet IAT requirement of the typical VoIP service in 20 msec. Furthermore, the proposed mechanism employees no service disruption for the data connection while an UE performs the soft handover procedure.

Original languageEnglish
Title of host publicationProceedings - 2nd International Symposium on Intelligent Information Technology and Security Informatics, IITSI 2009
Pages163-166
Number of pages4
DOIs
Publication statusPublished - 2009 Jul 1
Event2nd International Symposium on Intelligent Information Technology and Security Informatics, IITSI 2009 - Moscow, Russian Federation
Duration: 2009 Jan 232009 Jan 25

Publication series

NameProceedings - 2nd International Symposium on Intelligent Information Technology and Security Informatics, IITSI 2009

Other

Other2nd International Symposium on Intelligent Information Technology and Security Informatics, IITSI 2009
CountryRussian Federation
CityMoscow
Period09/1/2309/1/25

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Information Systems
  • Software

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  • Cite this

    Lee, T. H., Seo, S. H., & Song, J. S. (2009). A new soft handover mechanism using DCHs in high-speed downlink packet access networks. In Proceedings - 2nd International Symposium on Intelligent Information Technology and Security Informatics, IITSI 2009 (pp. 163-166). [4777571] (Proceedings - 2nd International Symposium on Intelligent Information Technology and Security Informatics, IITSI 2009). https://doi.org/10.1109/IITSI.2009.42