Multiple-Access Optical Network Architecture Employing a Wavelength-and-Network-Division Technique: MANDALA

Takao MATSUMOTO  Hideki ISHIO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E82-B   No.9   pp.1439-1445
Publication Date: 1999/09/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Optical Communication
Keyword: 
optical network,  network architecture,  WDM,  LAN,  protocol,  

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Summary: 
A novel multiple-access optical network architecture is presented that not only employs the WDM technique but also divides networks. The subnetworks are connected to each other via a wavelength-dependent interconnection network, and pairs of subnetworks are optically linked with different combinations for each wavelength. Through an analysis of the throughput and delay for the slotted ALOHA protocol, the architecture is confirmed to be improved from the conventional one that employs only the WDM technique. For example, the improvement ratio of the throughput for a four-wavelength network is 2.4, and that for an eight-wavelength network is 4.4.