The Arrayed-Waveguide Grating-Based Single-Hop WDM Network: An Architecture for Efficient Multicasting

Martin Maier, Michael Scheutzow, Martin Reisslein

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Research on multicasting in single-hop wavelength-division-multiplexing (WDM) networks has so far focused on networks based on the passive star coupler (PSC), a broadcast device. It has been shown that the multicasting performance is improved by partitioning multicast transmissions into multiple multicast copies. However, the channel bottleneck of the PSC, which does not allow for spatial wavelength reuse, restricts the multicast performance. In this paper, we investigate multicasting in a single-hop WDM network that is based on an arrayed-waveguide grating (AWG), a wavelength routing device that allows for spatial wavelength reuse. In our network, optical multicasting is enabled by wavelength-insensitive splitters that are attached to the AWG output ports. Multicasts are partitioned among the splitters and each multicast copy is routed to a different splitter by sending it on a different wavelength. We demonstrate that the spatial wavelength reuse in our network significantly improves, the throughput-delay performance for multicast traffic. By means of analysis and simulations, we also demonstrate that for a typical mix of unicast and multicast traffic the throughput-delay performance is dramatically increased by transmitting multicast packets concurrently with control information in the reservation medium access control protocol of our AWG-based network.

Original languageEnglish (US)
Pages (from-to)1414-1432
Number of pages19
JournalIEEE Journal on Selected Areas in Communications
Issue number9
StatePublished - Nov 2003


  • Arrayed-waveguide grating (AWG)
  • Multicasting
  • Partitioning
  • Reservation medium access control (MAC)
  • Single-hop wavelength-division-multiplexing (WDM) network
  • Spatial wavelength reuse

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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