Optimizing call admission control with QoS guarantee in a voice/data integrated cellular network using simulated annealing

نویسندگان

  • Tat-Chung Chau
  • K. Y. Michael Wong
  • Bo Li
چکیده

Abstmet-This paper addresses the issue of call admission control with the necesary QaS guarantee for a micddala integrated wireless cellular network. Specifically, we propose a new call admission control policy called Dual-Threshold Call Admission Conml (DT-CAC) policy. It uses hw rhresholdr, one to reserve channels for narrow-band voice handoffcalls, and the other for wideband data handoff Irffic. Its unique features am: 1) it adopts the Complete Sharing (CS) approach that maximizes the channel emciency; 2) it derives the opIh” se1 of thresholds that satisfies the QoS target on handoff dropping probabilities for both voice and data traffic, while at the same time minimizing the maximal new call hlwkining probability (voice or data). IQ performance is well supported by simulation results.

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تاریخ انتشار 2002