Optimization of long-reach TDM/WDM passive optical networks

被引：20

作者：

De Andrade, Marilet ^{[1
]}

Buttaboni, Anna ^{[1
]}

Tornatore, Massimo ^{[1
]}

Boffi, Pierpaolo ^{[1
]}

Martelli, Paolo ^{[1
]}

Pattavina, Achille ^{[1
]}

机构：

[1] Politecn Milan, Dept Elect Informat & Bioengn, Milan, Italy

来源：

OPTICAL SWITCHING AND NETWORKING | 2015年 / 16卷

关键词：

Long-reach passive optical networks; TDM/WDM; Coherent detection; MILP; PON;

D O I：

10.1016/j.osn.2014.11.001

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Long-Reach Passive Optical Network (LR-PON) using hybrid TDM/WDM techniques is one of the candidates for the future optical access that can solve the expected increase in terms of traffic demand and area coverage: One of its advantage's is the possibility to share the capacity of any wavelength among more than one user, through TDM/WDM hybrid multiplexing. However, it is still an open issue which transmission technology (DWDM transmitters, colorless transmitters, coherent detection, direct detection) can more effectively satisfy the requirements and characteristics of the future long-reach access network. In this article we propose a new optimization model based on Mixed Integer Linear Programming (MILP) that formalizes the problem of selecting the most cost-effective transmission technology in LR TDM/WDM PONs while also assigning the wavelength-channels line rate and the splitting ratio of the remote nodes at different levels, under bandwidth and power budget constraints. Using this proposed MILP formulation we can identify the optimal transmission technology for a wide set of possible LR-PON scenarios of interest. In this work we provide an evaluation of the optimal transmission technologies under several PON scenarios with varying traffic loads and area coverage. We also analyze the cost sensitivity of the optimization process for coherent-detection technology since it is still under research and development. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：36 / 45

页数：10

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