Performance analysis of buffering schemes in wormhole routers

Younes M. Boura, Chita R. Das

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


Wormhole switched input-buffered and middle-buffered routers with virtual channels are analyzed in this paper. Middle buffering refers to the placement of virtual channels between the demultiplexers and multiplexors of a crossbar switch. An analytical model for multistage interconnection networks using middle-buffered switches is developed. In addition, extensive simulation is conducted to assess the performance of the two buffering techniques in different network topologies. The study demonstrates that middle buffering with virtual channels provides better performance than input buffering with virtual channels in multistage interconnection networks, two-dimensional meshes, and hypercubes.

Original languageEnglish (US)
Pages (from-to)687-694
Number of pages8
JournalIEEE Transactions on Computers
Issue number6
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Software
  • Theoretical Computer Science
  • Hardware and Architecture
  • Computational Theory and Mathematics


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