Path Accommodation Methods for Unidirectional Rings with Optical Compression TDM

Kazuhiro GOKYU  Ken-ichi BABA  Masayuki MURATA  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.10   pp.2294-2303
Publication Date: 2000/10/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Advanced Internetworking based on Photonic Network Technologies)
optical compression TDM,  path accommodation method,  optical unidirectional ring network,  theoretical lower bound,  

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In this paper, we propose path accommodation methods for unidirectional rings based on an optical compression time-division multiplexing (OCTDM) technology. We first derive a theoretical lower bound on the numbers of slots and frames, in order to allocate all paths among nodes. Three path accommodation algorithms for the all-optical access are next proposed to achieve the lower bound as closely as possible. Path splitting is next considered to improve the traffic accommodation. Finally, we analyze the packet delay time for given numbers of slots/frames, which are decided by our proposed algorithms. Numerical examples are also shown to examine the effectiveness of our proposed algorithms including path accommodation and path splitting methods.