Use of concentrators to obtain an asymmetric broadcast ATM switching network

Yoshiaki Tanaka, Hirofumi Tsuchiya

Research output: Contribution to journalArticle

Abstract

As the broadband integrated services digital network (B-ISDN) become more available for home use, it is expected that the demand for broadcast services, e.g., video distribution from a center to end terminals, will increase. Thus, in the local switching system, the number of output subscriber lines is much larger than the number of input trunk lines. Therefore, an asymmetric broadcast ATM switching network is needed for this service. However, most of the switching networks already proposed are symmetric. In this paper, an asymmetric switching network is realized by partitioning the output and by using existing symmetric switching networks. Furthermore, the size of symmetric switching networks which are used as parts is reduced by placing concentrators in the front. This decreases the total amount of hardware. Since excessive concentration invites cell loss, the relation between the hardware-reduction effect and the cell-loss characteristic also is studied.

Original languageEnglish
Pages (from-to)30-40
Number of pages11
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume77
Issue number9
Publication statusPublished - 1994 Sep
Externally publishedYes

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Switching networks
Automatic teller machines
Hardware
Switching systems
Voice/data communication systems

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

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