Multicast partitioning protocol designs for WDM optical star networks

Ho Ting Wu, Shunyong Huang*, Kai Wei Ke

*Corresponding author for this work

Research output: Contribution to conferenceConference Paperpeer-review

1 Scopus citations

Abstract

We first propose a simple and efficient multicast partitioning protocol, called Lookback protocol, for employment in an asynchronous WDM single optical star network. Network nodes use random access schemes to send reservation packets over a dedicated packet reservation channel. A central traffic scheduler is allocated to coordinate message transmissions. It executes the Lookback scheduling scheme in real time by searching (back into the input queue) for a candidate multicast message that can be received by all of the intended recipients. Such an approach effectively reduces the head-of-line blocking effects. Performance results conducted via simulations have shown that networks employing such scheduling mechanisms can exhibit superior network throughput levels and delay performances. To apply this mechanism to a wider range of networking environments, we further consider an interconnected dual-star architecture and propose the Modified Lookback (Mlookback) mechanism. By using a simple heuristic approach, the Mlookback scheme is able to successfully exploit the inter data channels and properly utilize the wavelength reuse property of the intra data channels. Performance results have demonstrated the merits of deploying the underlying Mlookback multicast algorithm in such a dual-star structure.

Original languageEnglish
Pages81-86
Number of pages6
StatePublished - 2002
Externally publishedYes
Event2002 MILCOM Proceedings; Global Information Grid - Enabling Transformation Through 21st Century Communications - Anaheim, CA, United States
Duration: 07 10 200210 10 2002

Conference

Conference2002 MILCOM Proceedings; Global Information Grid - Enabling Transformation Through 21st Century Communications
Country/TerritoryUnited States
CityAnaheim, CA
Period07/10/0210/10/02

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