Dynamic Time-Threshold Based Scheme for Voice Calls in Cellular Networks

  • Idil Candan
  • Muhammed Salamah
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4003)


This paper presents a dynamic bandwidth allocation scheme for new and handoff voice calls in cellular networks. The main idea of the new scheme is based on monitoring the elapsed real time of handoff calls and according to both a time threshold (t e ) and a dynamically changing bandwidth threshold (B t ) parameters, a handoff call is either prioritized or treated as a new call. Also in this paper, we introduce a crucial general performance metric Z that can be used to measure the performance of different bandwidth allocation schemes and compare them. Z, which is a performance/cost ratio, is a function of the new call blocking probability, handoff call dropping probability and system utilization all together. The results indicate that our scheme outperforms other traditional schemes in terms of performance/cost ratio, and maintains its superiority under different network circumstances.


Cellular Network Bandwidth Allocation Call Admission Control Time Threshold Handoff Call 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Idil Candan
    • 1
  • Muhammed Salamah
    • 1
  1. 1.Computer Engineering DepartmentEastern Mediterranean UniversityGazimagosa, TRNC, Mersin 10Turkey

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