NDLI: OXADM restoration schemes in CWDM metropolitan ring network

Content Provider	IEEE Xplore Digital Library
Author	Ab-Rahman, M.S. Yusof, M.T.M.
Copyright Year	2008
Description	Author affiliation: Dept. of Electr., Electron. & Syst., Nat. Univ. of Malaysia, Bangi (Ab-Rahman, M.S.; Yusof, M.T.M.)
Abstract	We demonstrate a newly invented device named as optical cross add and drop multiplexer (OXADM) which designed with a combined concept of optical cross connect (OXC) and optical add drop multilexer (OADM). It is designed by improving all drawbacks appear in the previous device with some interesting features added. The OXADM node focuses on providing functionalities of transport, multiplexing, routing, supervision, termination and survivability in the optical layer for both ring and mesh topologies. The main function of OXADM is to reconfigure the optical channel path while implementing add and drop function simultaneously. The accumulation function offers by OXADM enable all transmitted signals to be multiplexed and routed in a single path. Meanwhile the 'U turn mechanism' can be implemented without the need of drop and re-add function. Hence, OXADM provide survivability in physical layer through restoration against failures by means of linear, multiplex and ring protection to both configurations. Hybrid restoration technique with OXADM enables the linear, ring and multiplex protection mechanism to be integrated in single optical network, and it will be activated according to the degree and types of failure. The paper calculates the OSNR according to the percentage of network failures and span variation. The method of this study involves the building and characterizing of two OXADMs, simulating by using Optisystem and modeling them analytically. Loss characterization and measured OSNR are compared with the analytical values. We also demonstrate OXADM optical switch mechanism with detail experimental set up explanation. Finally, the OSNR measurement of OXADM with respect of its function is also discussed.
Starting Page	1
Ending Page	7
File Size	1857024
Page Count	7
File Format	PDF
ISBN	9781424419791
DOI	10.1109/WOCN.2008.4542486
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-05
Publisher Place	Indonesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	CWDM OXADM analytical simulation Add-drop multiplexers Routing Physical layer experimental Topology OSNR Optical devices Signal restoration Optical design Optical add-drop multiplexers ring network survivability Optical noise Protection Signal to noise ratio
Content Type	Text
Resource Type	Article

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