An adaptive call admission control in ATM networks using optimized measurements windows

  • Authors:
  • Sukyoung Lee;Jooseok Song

  • Affiliations:
  • Department of Computer Science, Yonsei University, Seoul, 120-749, South Korea;Department of Computer Science, Yonsei University, Seoul, 120-749, South Korea

  • Venue:
  • Computer Communications
  • Year:
  • 2000

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Abstract

We propose an adaptive measurement-based admission control algorithm that uses optimization procedure to choose an appropriate measurement window size dynamically. Previous designs on measurement-based admission control mainly focused on strategies that consider the worst case traffic source model to guarantee QoS bounds for all connections. In this paper, we develop a simple mechanism in which both statistical multiplexing gain and QoS are considered An accurate formula for the cell loss probability which is combined with measurements, is presented for refined on/off traffic model. Furthermore, more accurate measurements of traffic would be given to admission controller through optimized window size. The proposed adaptive control is an appealing alternative: not only does it offer adaptivity to changing traffic conditions, but supports a guarantee that loss QoS bound is not violated due to the admission of new calls into ATM network. Simulations were performed to test the performance of the proposed algorithm.