Performance of a Time Slot Searching Mechanism in Multi-Rate Circuit Switching Systems

Seung Kye ROH  Kwang Ho KOOK  Jae Sup LEE  Min Young CHUNG  Dan Keun SUNG  

IEICE TRANSACTIONS on Communications   Vol.E77-B   No.5   pp.650-655
Publication Date: 1994/05/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Networks and Service
multi-slot call,  blocking probability,  traffic handling capacity,  processing load,  

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The blocking probabilities of n64Kb/s multi-slot calls are generally much higher than that of single slot calls. In order to improve these blocking probabilities of multi-slot calls, we propose a scheme to limit the number of time slots to be searched for lower rate calls. We analyze the performance of our scheme in a double-buffered time-space-time switching network which accommodates multi-slot calls as well as single-slot calls. The proposed method yields the reduced blocking probabilities of multi-slot calls, the increased traffic handling capacity and the reduced CPU processing load, compared with those of the conventional methods.