Spectral and Power-Efficiency Trade-off in Fixed-Grid Optical Networks

Sridhar Iyer, Shree Prakash Singh

Abstract


The improvement of spectral efficiency in the MLR networks can be obtained by the reduction of sub-band spacing, or by minimizing the spacing of the sub-bands that operate at varied data rates. However, due to the presence of physical layer impairments, minimization in sub-band spacing leads to adverse effects on the channel(s) transmission reach. As a result there occurs an increase in the consumed power due to the requirement of increase in regeneration of the signal. In the current work we propose an improved DWDM grating in view of obtaining higher spectral efficiency. For a system, with and without Forward Error Correction capabilities (i) for various SLR solutions, we find and compare power consumption values of the components with respect to the total traffic, and (ii) for different MLR and SLR solutions, for a fixed QoT, we evaluate the minimum values of the sub-band and the channel spacing, and also evaluate and compare the power-efficiency with the distance of transmission.

Full Text:

PDF

References


A.C. Wietfeld, Modeling, simulation and analysis of optical time division multiplexing transmission systems, Ph.D. dissertation, Der Technischen Fakultaet der Universitaet Erlangen-Nuernberg, 2004.

Cisco Systems Inc. Cisco visual networking index: forecast and methodology 20132018. White paper, pp 1–14, 2014.

S. Gosselin and M. Joindot, Key drivers and technologies for future optical networks, in Proc. IEEE ECOC, Tutorial We2.2.1, 2006.

S.P. Singh, S. Sengar, R. Bajpai, and S. Iyer, Next-Generation Variable-Line-Rate Optical WDM Networks: Issues and Challenges, J. Opt. Commun., De Gruyter, vol. 34, no. 1, pp. 331–350, 2013.

P. Chowdhury, M. Tornatore, A. Nag, E. Ip, T. Wang, and B. Mukherjee, On the design of energy-efficient mixed-line-rate (MLR) optical networks, IEEE/OSA J. Lightw. Technol., vol. 30, pp. 130–139, 2012.

N. Sambo, M. Secondini, F. Cugini, G. Bottari, and P. Iovanna, Modeling and distributed provisioning in 1040100-Gb/s multirate wavelength switched optical networks, IEEE/OSA J. Lightw. Technol., vol. 29, pp. 1248–1257, 2011.

J.L. Vizcaino, Y. Ye, and I.T. Monroy, Energy efficiency in elastic- bandwidth optical networks, in Proc. IEEE NOF, pp. 107–111, 2011.

E. Lebel. Get excited about 100G. Lightwave online, Live Webcast, 2011.

Y. Miyamoto, Ultra High Capacity Transmission for Optical Transport Networks, in Proc. OFC/NFOEC, OThX4, 2011.

A. Sano, H. Masuda, T. Kobayashi, M. Fujiwara, K. Horikoshi, E. Yoshida, Y. Miyamoto, M. Matsui, M. Mizoguchi, H. Yamazaki, Y. Sakamaki, and H. Ishii, Ultra-High Capacity WDM Transmission Using Spectrally-Efficient PDM 16-QAM Modulation and C- and Extended L-Band Wideband Optical Amplification, IEEE/OSA J. Lightw. Technol., vol. 29, no. 4. pp. 578–586, 2011.

J.L. Vizcaino, Y. Ye, and I.T. Monroy, Energy efficiency analysis for flexible-grid OFDM based optical network, Computer Networks, Elsevier, vol. 56, no. 10, pp. 2400–2419, 2012.

W.V. Heddeghem, F. Izdikowski, W. Vereecken, D. Colle, M. Pickavet, and P. Demester, Power consumption modeling in optical multilayer networks, Photonic Netw. Commun., Springer, vol. 24, pp. 86–102, 2012.

Green Touch: ICT industry combats climate change/Internets. Available: http://www.greentouch.org/index.php?page=how–the–ict–industries–can help–the–world–combat–climate–change

C. Cavdar, M. Ruiz, P. Monti, L. Velasco, and L. Wosinska, Design of Green Optical Networks with Signal Quality Guarantee, in Proc. IEEE ICC, pp.3025, 2012.

G. Rizzelli, A. Morea, M. Tornatore, and O. Rival, Energy efficient traffic-aware design of on-off multi-layer translucent optical network, Journal of Computer Networks, vol. 56, no. 10, pp. 2443–2455, 2012.

S. Iyer and S.P. Singh, Spectral and power efficiency investigation in single- and multi-line-rate optical wavelength division multiplexed (WDM) networks, Photonic Netw. Commun., Springer, vol. 33, no. 1, pp. 39–51, 2017.

G. P. Agrawal, Fiber-Optic Communication Systems, Wiley: London, 2010.

RSoft Design Group Inc: Coherent PM-QPSK versus RZ-DQPSK and DPSK for high bitrate systems. Available: http://www.rsoftdesign.com/products.php?sub=System+and+Network&itm=OptSim&det=Application+Gallery&id=50

P.J. Winzer, and R.J. Essiambre, Advanced Optical Modulation Formats, in Proc. IEEE, vol. 94, pp. 952-985, 2006.

S. Iyer and S.P Singh, Impact of Channel Dynamics, Combined Nonlinearities and ASE Noise on Transmission Performance of all Optical Star WDM Networks, Commun. Netw. Sci. Res., vol. 3, no. 4, pp. 235–249, 2011.

R. Ramaswami, K.N. Sivarajan, and G.H. Sasaki, Optical Networks: A Practical Perspective, Elsevier, 2010.

MRV: Lambda Driver DWDM 40Gbps transponder (TM-40GT8, 2011)/Internets. Available:http://www.mrv.com/datasheets/LD/PDF300/MRV-LD-TM-40GT8 HI.pdf

ADVA: FSP 3000 coherent transponders, fact sheet (2012)/Internets. Available:http://www.advaoptical.com/˜/media/Innovation/Efficient%20100G%20Transport/100G%20Coherent%20Transponder.ashx

Ciena: F10-T 10G transponder, datasheet (2011)/Internets. Available: http://www.ciena.com/products/f10t/tab/features/

A. Morea, S. Spandaro, O. Rival, J. Perello, F. Agraz, and D. Verchere, Power management of optoelectronic interfaces for dynamic optical networks, in Proc. IEEE ECOC, We.8.K.3.pdf, pp. 1–3, 2011.

Civcom Devices & Systems Ltd. 100G DP(D) QPSK coherent tunable transponder. Datasheet. DOC1190100, 2014.

ITU-T Recommendation G.694.1. Spectral grids for WDM applications: DWDM frequency grid- Series G: Transmission Systems and Media, Digital Systems and Networks. 2012.

O. Rival, and A. Morea, Resource Requirements in Mixed-Line Rate and Elastic Dynamic Optical Networks, in Proc. OFC/NFOEC, pp. 1-3, 2012.




DOI: http://dx.doi.org/10.11601/ijates.v6i3.236

Refbacks

  • There are currently no refbacks.