A Flexible Bound Admission Control Algorithm for Vertical Handover in Ubiquitous Environment

  • Jong Min Lee
  • Ok Sik Yang
  • Seong Gon Choi
  • Jun Kyun Choi
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4097)


In this paper, we present FBAC (Flexible Bound Admission Control) algorithm using softness profile to reduce handover blocking probability over WLAN and WAAN (Wide Area Access Network). FBAC algorithm utilizes dynamic resource allocation scheme to decrease the blocking probability of vertical handover connections within the limited capacity of system. Based on FBAC algorithm, we derive the handover blocking probability as new traffic load and handover traffic load increase. In order to evaluate the performance, we compare FBAC algorithm against traditional non-bounded and fixed bound schemes. Numerical results show that the FBAC scheme improves handover blocking probability in ubiquitous environment.


Mobile Node Traffic Load Admission Control Markov Chain Model Call Admission Control 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Jong Min Lee
    • 1
  • Ok Sik Yang
    • 1
  • Seong Gon Choi
    • 2
  • Jun Kyun Choi
    • 1
  1. 1.Information and Communications University (ICU)DaejeonRepublic of Korea
  2. 2.Chungbuk National University (CBNU)ChungbukRepublic of Korea

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