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Wide-sense nonblocking multicast in WRMD WDM optical linear array and ring

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Abstract

Multicast communication is the simultaneous transmission of information from a single source to various destinations. It occurs extensively in telecommunication and advanced computing systems including enterprises operating datacenters. WDM optical networks act as the backbone for telecommunication and high performance networks. Wavelengths are scarce resources in WDM optical networks. Wavelengths usage in a network must be limited to decrease its cost and complexity. Optical linear array and ring networks find widespread application in interconnection networks including LAN and WAN. In this paper, wide-sense nonblocking multicast communication is analyzed in wavelength reusable multi-carrier distributed (WRMD) wavelength division multiplexing (WDM) linear array, unidirectional ring and bidirectional ring networks. The sufficient and necessary condition on the minimum wavelength number required for the network to be wide-sense nonblocking is derived for each of the above network topologies in the presence of a single multi-carrier light source (MCLS). An explicit wavelength allotment technique is also proposed for the above network topologies.

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Correspondence to M. Sabrigiriraj.

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Sabrigiriraj, M., Karthik, R. Wide-sense nonblocking multicast in WRMD WDM optical linear array and ring. Int. j. inf. tecnol. 12, 195–202 (2020). https://doi.org/10.1007/s41870-019-00370-2

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Keywords

  • Wavelength reusable multicarrier distributed (WRMD)
  • Optical networks
  • Wavelength allotment
  • Multicasting