Round-Robin Selection With Adaptable-Size Frame in a Combined Input-Crosspoint Buffered Switch

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33 Scopus citations

Abstract

Combined input-crosspoint buffered switches are an alternative to relax arbitration timing and to provide high-performance switching for packet switches with high-speed ports. It has been shown that these switches, with one-cell crosspoint buffer and round-robin (RR) arbitration at input and output ports, provide 100% throughput under uniform traffic. However, under admissible traffic patterns with nonuniform distributions, only weight-based selection schemes are reported to provide high throughput. In this letter, we propose a RR based arbitration scheme for a combined input-crosspoint buffered packet switch that provides nearly 100% throughput for several admissible traffic patterns, including uniform and unbalanced traffic, using one-cell crosspoint buffers. The presented scheme uses adaptable-size frames, so that the frame size adapts to the traffic pattern.

Original languageEnglish (US)
Pages (from-to)555-557
Number of pages3
JournalIEEE Communications Letters
Volume7
Issue number11
DOIs
StatePublished - Nov 2003

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

Keywords

  • Adaptable-size frame
  • Credit-based flow control
  • Crosspoint-buffered switch
  • Packet scheduling arbitration
  • Virtual output queue

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