Ring to Mesh Migration in CWDM Metropolitan Network Using OXADM

Ab-Rahman, Mohammad Syuhaimi; Husin, H.; Shaari, Sahbudin

doi:10.1109/icece.2006.355631

Cited by 4 publications

(5 citation statements)

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“…The OXADM optical device is particularly designed for WDM metro application [3] [4]. It can be used as restoration switch in FTTH network [5].…”

Section: Resultsmentioning

confidence: 99%

“…Two restoration schemes have been proposed to provide survivability in ring and mesh metro network which are been activated according to the condition of failure by means of linear, multiplex and ring protection [2] [3]. The migration of topology will be easier and reduce the restructuring process by eliminating the installation of new nodes because OXADMs are applicable for both types of topologies (ring and mesh) beside provide efficiency, reliability and survivability to the network [4]. In FTTH application, the OXADM multifunctional switch is integrated together with optical splitter in the system called Access Control System (ACS).…”

Section: Introductionmentioning

confidence: 99%

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Development of optical multifunctional switch

Ab-Rahman

Yusof

2008

2008 5th IFIP International Conference on Wireless and Optical Communications Networks (WOCN '08)

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A lossless, low-crosstalk and multifunction optical switch is most desirable for large-scale photonic network. To realize such a switch, we have introduced the new architecture of optical switch that embedded many functions on single device. With the use of MEMs technology has minimized the effect of crosstalk and return loss. The multifunctional device means the integration of single functional device onto one architecture and OXADM achieved the point with its unique architecture. With the 'accumulation' function, OXADM has widened its application to fiber to the home (FTTH) and network security system. The main function of OXADM is to reconfigure the optical channel path while implementing add and drop function simultaneously. The multifunctional OXADM can works as single optical devices such as multiplexer, demultiplexer, OXC, OADM, Wavelength Selective Coupler (WSC) and Wavelength Roundabout (WRB). With such the excellent features, the OXADM is expected to be unique, universal and with a high reliability that is used to overcome the various functions in WDM communication network today. The experimental resultsshow the value of crosstalk and return loss is bigger than 60 dB and 40 dB respectively. In our previous results have also shown the value of insertion loss was less than 0.06 dB under ideal condition, the maximum length that can be achieved is 94 km. While when considering the loss, with the transmitter power of 0 dBm and sensitivity -22.8 dBm at a point-to-point configuration with safety margin, the required transmission is 71 km with OXADM. The OSNR measurements for every function of OXADM are also proposed with the values are bigger than 20 dB.

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“…The OXADM optical device is particularly designed for WDM metro application [3] [4]. It can be used as restoration switch in FTTH network [5].…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of optical multifunctional switch

Ab-Rahman

Yusof

2008

2008 5th IFIP International Conference on Wireless and Optical Communications Networks (WOCN '08)

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“…For a futuristic optical node, this feature should be incorporated in the OXADM design. As OXADM is designed from a combination of two main device features of OADM and OXC, then it is able to migrate from a ring topology to mesh topology while maintaining its function as an optical network security systems with both linear protection mechanisms, multiplex and ring can be carried out simultaneously in an optical node (Ab-Rahman and Shaari, 2006;AbRahman and Shaari, 2007;Ab-Rahman, 2008). Figure 2a shows a migration from ring to mesh topology using OXADM architecture that operates with the same signal on both bases.…”

Section: Methodsmentioning

confidence: 99%

Flexible Topology Migration in Optical Cross Add and Drop Multiplexer in Metropolitan Ring Network

Ab-Rahman¹

2012

Journal of Computer Science

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Problem statement: Optical Cross Add and Drop Multiplexer (OXADM) is a recently invented optical networks device. Approach: A design with a purpose to combine the operational concepts of Optical Add-Drop Multiplexer (OADM) and Optical Cross Connect (OXC) has been developed. It is developed by studying the drawbacks in existing devices and with some excellence features added. OXADM is introduced to increase the survivability in the ring network. With the 'Accumulation' feature and 'U' turn reflection enable the multiplex, linear and ring protection scheme activated to ensure the signal arrives at the customer although breakdown occurs in the line and optical node. Beside that with the new features, the topology migration can also be done without the restructuring process due to randomly growth of new nodes. Results: The result shows that; network performance is similar without need a modification on components. Conclusion: Output power and BER performance at different node in ring and mesh optical network are shown to show the achievement of objective.

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“…But with the development of hybrid technology (combination of CWDM and DWDM) offers promising future in increasing both the capacity and bandwidth dramatically. But the explosive growth of data rate and random presence of new nodes have led to the demand of flexible, efficient and survivable device to support all network functions [4], [7].…”

Section: Introductionmentioning

confidence: 99%

Survivability Schemes in Optical Cross Add and Drop Multiplexer

Ab-Rahman

2008

2008 10th International Conference on Advanced Communication Technology

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Optical cross add drop multiplexer (OXADM) is a newly invented device in optical networks. It is designed with a combined concept of optical cross connect (OXC) and optical add drop multiplexer (OADM) which is potentially used to increase efficiency and flexibility of optical network particularly in metropolitan ring and mesh configuration. 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 designed 4-channel OXADM device is expected to have maximum operational loss of 6 dB for each channel. OXADM also provide survivability 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. Degradation is expected at about 2 dB in output power with respect to normal condition in ring protection activation. The test was carried out at 2.5 Gbps with BER 1x10MO for linear protection while BER 1x10-19 (to west) and Ix10-13 (to east) were used for ring protection. The paper also 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 analytical. Loss characterization and measured OSNR are compared with the analytical values. The result of prototype characterization was shown in our previous [8].

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Ring to Mesh Migration in CWDM Metropolitan Network Using OXADM

Cited by 4 publications

References 1 publication

Development of optical multifunctional switch

Development of optical multifunctional switch

Flexible Topology Migration in Optical Cross Add and Drop Multiplexer in Metropolitan Ring Network

Survivability Schemes in Optical Cross Add and Drop Multiplexer

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