Resource Allocation for Space-Division Multiplexing: Optical White Box Versus Optical Black Box Networking

Muhammad, Ajmal; Zervas, Georgios; Forchheimer, Robert

doi:10.1109/jlt.2015.2493123

Cited by 157 publications

(49 citation statements)

References 50 publications

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“…Taking into account that, historically, the cost per port of single-mode WSSs has been inversely proportional to the port count [20], we expect that telecom operators could derive substantial benefits by exploiting (F)JoS in a SDM network scenario. An alternative approach, based on "architecture on demand" (AoD) for SDM rather than ROADMs, is also discussed in the literature [21], but no hard comparisons have been made (to the best of our knowledge) regarding the relative cost and merits of AoD and (F)JoS solutions.…”

Section: Sdm Switching Paradigms and Previous Workmentioning

confidence: 99%

Improving Performance of Spatially Joint-Switched Space Division Multiplexing Optical Networks via Spatial Group Sharing

Pederzolli

Siracusa

Shariati

et al. 2017

J. Opt. Commun. Netw.

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Space division multiplexing (SDM) is a promising approach to overcome the looming fiber capacity crunch. Joint and fractional joint switching (JoS and FJoS) architectures, which switch multiple spatial dimensions together as atomic units, have been proposed to reduce the cost of implementing SDM and cater to strongly coupled transmission media. However, they have been shown to impose significant penalties to overall network performance, at least when many relatively small connections are used in the context of uncoupled spatial dimensions, while performing nearly as well as the independent switching (InS) architecture if the average connection size is sufficiently large to efficiently exploit their increased granularity. In this work we tackle the performance penalty that JoS and FJoS architectures impose on SDM networks with uncoupled spatial dimensions compared to InS, by proposing two novel routing, space, and spectrum allocation (RSSA) heuristics that effectively share jointly switched resources, adapted to use different types of SDM reconfigurable optical add/drop multiplexer architectures requiring only a small additional cost. We investigate the performance of these new RSSA algorithms compared to an existing one under several traffic conditions and models using simulations. We find that our proposals can achieve significant improvements in the performance of SDM networks carrying large numbers of relatively small connections, up to parity of performance with InS designs, at a lower implementation cost, under all traffic conditions under study, including different average connection sizes and size diversity.

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Section: Sdm Switching Paradigms and Previous Workmentioning

confidence: 99%

Improving Performance of Spatially Joint-Switched Space Division Multiplexing Optical Networks via Spatial Group Sharing

Pederzolli

Siracusa

Shariati

et al. 2017

J. Opt. Commun. Netw.

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show abstract

“…Taking into account that, historically, the cost per port of single-mode WSSs has been inversely proportional to the port count [7], we expect that telecom operators could derive substantial benefits by exploiting (F)JoS in a SDM network scenario. An alternative approach, based on "Architecture on Demand" (AoD) for SDM rather than ROADMS, is also discussed in literature [8], however no hard comparisons have been made (to the best of our knowledge) regarding the relative cost of AoD and (F)JoS solutions.…”

Section: Sdm Overview and Previous Workmentioning

confidence: 99%

Spatial group sharing for SDM optical networks with Joint Switching

Pederzolli

Siracusa

Rivas-Moscoso

et al. 2016

2016 International Conference on Optical Network Design and Modeling (ONDM)

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Space Division Multiplexing (SDM) is a promising approach to overcome the looming fiber capacity crunch. Joint and Fractional Joint Switching architectures, which switch multiple spatial dimensions together as atomic units, have been proposed to reduce the cost of implementing SDM and cater to strongly coupled transmission media. However, they have been shown to impose significant penalties to overall network performance, at least when many relatively small connections are used in the context of uncoupled spatial dimensions. With respect to this latter type of SDM networks, in this work we tackle the performance penalty that Joint and Fractional Joint Switching architectures impose on such a system compared to the Independent Switching Architecture, by proposing two novel Routing, Space and Spectrum Allocation heuristics that effectively share jointly-switched resources, adapted to use different types of SDM Reconfigurable Optical Add/Drop Multiplexer (ROADM) architectures requiring only a small additional cost. We find that our proposals can achieve significant improvements in the performance of SDM networks carrying large number of relatively small connections, up to parity of performance with Independent Switching designs, at a lower implementation cost.

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“…On the one hand, current trends in optical networks propose a white-box networking concept consisting of Architecture on Demand (AoD) programmable nodes [27]. Such concepts are inspired by the computer science paradigm where hardware, operating systems and applications are provided by different parties.…”

Section: Hybrid Sdn Control Using White-box Networkingmentioning

confidence: 99%

Pioneering hardware modeling and software design for optical infrastructure in the Autonomous Network project

Garrich

Bravalheri

Magalhaes

et al. 2016

2016 International Conference on Optical Network Design and Modeling (ONDM)

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Experimental platforms are essential to demonstrate the potential benefits that Software Defined Networking (SDN) can bring to optical metro and backbone carriers' infrastructure. In this context, the Autonomous Network (AN) project is an SDN-enabled five-node metropolitan optical network test-bed located at CPqD. The AN main objective is to bring novel SDN concepts and capabilities down to the physical/optical layer for performance improvements in different dimensions. In this paper, we first present a comprehensive description of the AN infrastructure comprising the pioneering modeling of hardware equipment and software design in the SDN controller. Then, we review recent research activities, which include SDN-enabled adaptive and cognitive algorithms to improve end-to-end performance, and experimental demonstrations in the optical layer. Finally, we comment on different SDN designs and white-box networking to enable further equipment programmability in future optical networks.

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Resource Allocation for Space-Division Multiplexing: Optical White Box Versus Optical Black Box Networking

Cited by 157 publications

References 50 publications

Improving Performance of Spatially Joint-Switched Space Division Multiplexing Optical Networks via Spatial Group Sharing

Improving Performance of Spatially Joint-Switched Space Division Multiplexing Optical Networks via Spatial Group Sharing

Spatial group sharing for SDM optical networks with Joint Switching

Pioneering hardware modeling and software design for optical infrastructure in the Autonomous Network project

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