A cross-layer adaptive handoff algorithm in wireless multimedia environments

Tsungnan Lin, Chiapin Wang

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

Abstract

Providing multimedia services in wireless networks is concerned about the performance of handoff algorithms because of the irretrievable property of real-time data delivery. To lessen unnecessary handoffs and handoff latencies which can cause media disruption perceived by users, we present in this paper a cross-layer handoff algorithm base on link quality. Neural networks are used to learn the cross-layer correlation between the link quality estimator such as packet success rate and the corresponding context metric indictors, e.g. the transmitting packet length, received signal strength, and signal to noise ratio. Based on a pre-processed learning of link quality profile, our approach makes handoff decisions intelligently and efficiently with the evaluations of link quality instead of the comparisons between relative signal strength. The experiment and simulation results show that the proposed method outperforms RSS-based handoff algorithms in a transmission scenario of VoIP applications.

Original languageEnglish
Title of host publicationApplications of Digital Image Processing XXX
Volume6696
DOIs
Publication statusPublished - 2007 Dec 1
Externally publishedYes
EventApplications of Digital Image Processing XXX - San Diego, CA, United States
Duration: 2007 Aug 282007 Aug 30

Other

OtherApplications of Digital Image Processing XXX
CountryUnited States
CitySan Diego, CA
Period07/8/2807/8/30

Keywords

  • Cross-layer
  • Handoff algorithm
  • Multimedia

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Lin, T., & Wang, C. (2007). A cross-layer adaptive handoff algorithm in wireless multimedia environments. In Applications of Digital Image Processing XXX (Vol. 6696). [66960Y] https://doi.org/10.1117/12.740212