All-optical MAC protocol for Gbits/sec fiber optic LANs/MANs

Mounir Hamdi*, Lixin Wang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

This paper proposes a MAC protocol for two-dimensional grid networks, termed Slotted Grid Protocol (SGP), for high speed LANs/MANs. To support high speed transmission and all-optical operation, intermediate routing and buffering is avoided. SGP combines the linear optical network concepts with two dimension grid topology. It employs prefixed slotting and routing mechanisms, consequently resulting in scalable, all-optical or almost-all-optical techniques that result in high performance. SGP consists of two layers. The lower layer is slotted ring based protocol which employes two uni-direction trains to transport the packets along each of the merged tings which connect a group of nodes in the network. The upper layer is a token driven protocol which is to control the merging process so that all nodes are involved in the transmission simultaneously and every node can get a chance to work as a merging node. Multiple-queue strategy is adapted to realize the one-cycle full inter-connection on a unidirection ring. The multiple-queue strategy makes also the benefits for balancing the traffic load of the network, and for eliminating the head-queue effects. Consequently extendable capacity of the network and wider effective traffic load range are achieved based on the same node configuration and network configuration as that of the linear protocol, such as DQDB. The primary properties of the SGP are modeled and analyzed based on polling system principles. Simulation results are presented in this paper, which includes the comparison of the performance of SGP with that of DQDB.

Original languageEnglish
Pages (from-to)297-305
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2919
DOIs
Publication statusPublished - 1996
Externally publishedYes
EventAll-Optical Communication Systems: Architecture, Control and Network Issues II - Boston, MA, United States
Duration: 20 Nov 199621 Nov 1996

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