Efficiency of Adaptive and Mixed-Line-Rate IP over DWDM Networks regarding CAPEX and Power Consumption

Klekamp, A.; Gebhard, Ulrich; Ilchmann, Frank

doi:10.1364/ofc.2012.oth3b.1

Cited by 15 publications

(8 citation statements)

References 3 publications

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“…References [25], [26] try to evaluate the performance of IP over elastic as compared to mixed-line-rate, which uses different types of fixed transponders to suit traffic demands, in terms of capital expenditure (CAPEX) and power consumption. They claim that the elastic optical network has no significant benefit other than total number of transponders and spectral efficiency (number of fibers).…”

Section: Multi-layer Network Designmentioning

confidence: 99%

Recent Advances in Elastic Optical Networking

Tanaka

Jinno

2014

IEICE Trans. Commun.

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SUMMARYMany detailed studies ranging from networking to hardware as well as standardization activities over the last few years have advanced the performance of the elastic optical network. Thanks to these intensive works, the elastic optical network has been becoming feasible. This paper reviews the recent advances in the elastic optical network from the aspects of networking technology and hardware design. For the former, we focus on the efficient elastic network design technology related to routing and spectrum assignment (RSA) of elastic optical paths including network optimization or standardization activities, and for the latter, two key enabling technologies are discussed: elastic transponders/regenerators and gridless optical switches. Making closely-dependent networking and hardware technologies work synergistically is the key factor in implementing truly effective elastic optical networks. key words: elastic optical network, network design, routing and spectrum assignment, elastic transponder

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Section: Multi-layer Network Designmentioning

confidence: 99%

Recent Advances in Elastic Optical Networking

Tanaka

Jinno

2014

IEICE Trans. Commun.

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“…In [2], the ER network planning problem, the assignment of a distance‐adaptive modulation format is considered and the RMLSA problem is introduced. In [10, 12, 13], ER and mixed‐line‐rate (MLR) networks are compared in terms of cost efficiency.…”

Section: Related Workmentioning

confidence: 99%

Optical ring metro networks with flexible Grid and distance-adaptive optical coherent transceivers

2013

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The utilization of distance‐adaptive coherent optical transceivers in combination with a flexible finer‐grained Wavelength Division Multiplexing (WDM) grid has been proposed in optical core networks to enable higher spectral efficiency and flexibility in the allocation of traffic flows. However, the application of distance‐adaptive transceivers in metro networks, which are typically based on ring topologies and characterized by shorter distances and lower traffic volumes, is still an open research area both in terms of network resource savings and coherent technology requirements. This paper discusses and analyzes an optical metro ring network architecture with distance‐adaptive coherent transceivers and formalizes the routing, modulation level, and spectrum assignment (RMLSA) optimization problem over such a network in order to evaluate the possible benefits introduced by the use of coherent technologies and of a spectrum grid of finer granularity in metro scenarios. Comparisons with legacy WDM systems show significant savings in terms of spectrum occupation and transceiver utilization. © 2013 Alcatel‐Lucent.

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“…For the WDM networks, up to 80 wavelengths within the 50 GHz channel spacing in the C-band and line rates of 10 Gb/s, 40 Gb/s, and 100 Gb/s, with reaches of 3200, 2200, and 1880 km [6] respectively, have been assumed. Two types of operation are considered: Single Line Rate (SLR) of 10, 40 or 100 Gb/s per fiber, and Mixed Line Rate (MLR), which combines the transmission of the three mentioned line rates in a single fiber (10/40/100 Gb/s).…”

Section: B Current Wdm Networkmentioning

confidence: 99%