Three-stage switching networks for N:1 multiconnection

Yoshiaki Tanaka*, Kaoru Sezaki, Minoru Akiyama

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This research describes the characteristics of multiconnection in three-stage switching networks. The condition under which an arbitrary idle inlet can connect to an arbitrary outlet is shown; it is also shown that when the number of outlets is large, three-stage switching networks that are nonblocking for N:1 multiconnection can be designed with fewer crosspoints than by a simple matrix switch. The traffic handling performance of 1:1 nonblocking Clos's switching networks for multiconnection calls is evaluated by simulation. As a result, it is shown that switching networks with blocking probability around 10-4 can be designed with 60 percent of the crosspoints required in the simple matrix switch case.

Original languageEnglish
Pages (from-to)66-74
Number of pages9
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Issue number7
Publication statusPublished - 1988 Jul 1
Externally publishedYes

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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