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A Method to Estimate the Horizontal Handover Decision Effect on Indoor Wireless Conversational Video Quality

  • Alfonso Fernandez DuranEmail author
  • Raquel Perez Leal
  • Jose I. Alonso
Open Access
Research Article
Part of the following topical collections:
  1. Wireless Video

Abstract

One of the most interesting and valuable services considered in fixed mobile convergence is video telephony. The success of this conversational video service will depend on the conversational video quality achieved in the multicell wireless indoor scenarios. One of the essential elements in the quality is the effect of the horizontal handovers in the conversational video. This paper analyzes the handover decision based on the probability calculation of handover events in the case of relative signal strength with hysteresis threshold (RSSHT) approach, and it proposes a new handover decision mechanism, variable hysteresis, to avoid unnecessary handovers. The paper presents the impact of the number of handovers and their duration time on the video's effective frame rate. Moreover, the effect of video stream modification during a short handover is also analyzed. Probability and handover duration approaches are combined and a new simple method for video quality evaluation is caused by the handovers in multicell indoor WLAN scenarios. Finally, the model proposed has been applied to a real office scenario.

Keywords

Handover Decision Video Telephony Unnecessary Handover Horizontal Handover Handover Event 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Alfonso Fernandez Duran et al. 2008

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Authors and Affiliations

  • Alfonso Fernandez Duran
    • 1
    Email author
  • Raquel Perez Leal
    • 2
  • Jose I. Alonso
    • 2
  1. 1.Alcatel-Lucent SpainMadridSpain
  2. 2.Escuela Tecnica Superior de Ingenieros de TelecomunicacionUniversidad Politecnica de Madrid, Ciudad UniversitariaMadridSpain

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