Next-Generation Variable-Line-Rate Optical WDM Networks: Issues and Challenges
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Shree Prakash Singh
,
Sujata Sengar
Abstract
With the ever-increasing traffic demands, the infrastructure of current 10 Gbit/s optical network needs to be enhanced. The legacy infrastructure can be enhanced not only by increasing the capacity, but also by adapting advance modulation format, having increased spectral efficiency at higher data rate. In all-optical mixed line rate (MLR) network, feasibility of a lightpath is determined by physical layer impairment (PLI) accumulation. Contrary to physical layer impairment-aware routing and wavelength assignment (PLIA-RWA) algorithm applicable for a 10 Gbit/s WDM network, that selects a feasible route-keeping the signal to noise ratio value at the receiver above the threshold limit, a new Routing, Wavelength, Modulation format assignment (RWMFA) algorithm is required for a MLR optical network. This article reviews the major PLIs present in an optical fiber, emphasizing those that result in performance degradation of an MLR system. The article also surveys the advance modulation formats that are spectrally efficient and noise resistant. The article further presents a survey of different RWMFA (PLIA-RWA) algorithms for MLR networks and finally identifies several open problems for future research.
©[2013] by Walter de Gruyter Berlin Boston
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- Editorial
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- Upgrade of Passive Optical Network using Raman Amplification
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- Next-Generation Variable-Line-Rate Optical WDM Networks: Issues and Challenges
- Performance Evaluation and PMD Tolerance of PM-QPSK at 100 Gbit/s in Dispersion Managed 64 Channel Long Haul DWDM Optical Communication Link
- A Survivable WDM-PON Architecture Using Optical Carrier Suppression Technique
- Performance Analysis of Optical Code Division Multiplex System
- Effect of Modulation Formats in Hybrid Amplified Radio over Fiber Systems
- 2.50 Gbit/s FSO System using PPM Modulation Schemes in HAP to Ground Links
- Wireless Overlay Backhauling over Bidirectional Colorless WDM-PONs: the Impact of the Baseband Channel
- Bit Error Rate and Outage Rate Results for Non-Zero Turbulence Cells over Gamma-Gamma Free-Space Optical Wireless Channel
- Simulative Analysis of CATV Systems for Long Haul Transmission
- Impact of Initial Laser Phase Values on Soliton Transmission
- Determination of Propagation Characteristics of Crucial Planar Wave Guide Structures by Finite Difference Method
- News
Articles in the same Issue
- Masthead
- Editorial
- Interesting Observation on the Performance of Dual Concentric Core Fiber Raman Amplifier due to Change in Core Gap Radius in an Extended Version
- DPSK Modulated (Tbit/s) Transmission Incorporating Dispersion-compensated Hybrid Amplifier
- Numerical Analysis of NTW-SOA for Differential Inline Detector Applications
- Bandgap Calculation of 2D Hexagonal Photonic Crystal Structures Based on Regression Analysis
- Design and Simulation of the Light-trail Node for Mesh WDM Networks
- Implementing Universal Priority DBA Algorithm in PIC based EPON Testbed
- Upgrade of Passive Optical Network using Raman Amplification
- Shortest Path First to Optimize the Optical Multicast Routing Cost and Wavelength Consumption for WDM Network
- Next-Generation Variable-Line-Rate Optical WDM Networks: Issues and Challenges
- Performance Evaluation and PMD Tolerance of PM-QPSK at 100 Gbit/s in Dispersion Managed 64 Channel Long Haul DWDM Optical Communication Link
- A Survivable WDM-PON Architecture Using Optical Carrier Suppression Technique
- Performance Analysis of Optical Code Division Multiplex System
- Effect of Modulation Formats in Hybrid Amplified Radio over Fiber Systems
- 2.50 Gbit/s FSO System using PPM Modulation Schemes in HAP to Ground Links
- Wireless Overlay Backhauling over Bidirectional Colorless WDM-PONs: the Impact of the Baseband Channel
- Bit Error Rate and Outage Rate Results for Non-Zero Turbulence Cells over Gamma-Gamma Free-Space Optical Wireless Channel
- Simulative Analysis of CATV Systems for Long Haul Transmission
- Impact of Initial Laser Phase Values on Soliton Transmission
- Determination of Propagation Characteristics of Crucial Planar Wave Guide Structures by Finite Difference Method
- News
