Optimization of RWA Problem through OSNR
draft-yin-rwa-osnr-01

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Networking Group                                                  S. Yin
Internet Draft                                               Sh.G. Huang
Intended status: Informational                                      BUPT
Expires: November 2018                                           S. Zhou
                                                               X.K. Meng
                                                                   R. Ma
                                                                    BUPT
                                                            May 24, 2018

                 Optimization of RWA Problem through OSNR
                           draft-yin-rwa-osnr-01

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   Legal Provisions and are provided without warranty as described in
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Abstract

   This documentary provides a kind of routing optimization method. In
   the basic of RWA solution method, both the output power of the route
   and the OSNR value of the optical signal noise ratio are considered.
   The selected optimal route has a lower bit error rate and the whole
   communication network performance is improved.

Table of Contents

   1. Introduction ................................................ 2
      1.1. Terminology ............................................ 3
   2. Conventions used in document                          ................................. 3
   3. Overview              ....................................... 4
      3.1. RWA Problem ............................................ 4
   4. Calculation formula ......................................... 4
   5. Optimization of RWA problem through OSNR .................... 5
   6. Formal Syntax ............................................... 6
   7. Security Considerations                   .................................. 6
   8. IANA Considerations ......................................... 6
   9. Conclusions ................................................. 7
   10. References ................................................. 7
      10.1. Normative References                            ............................. 7
      10.2. Informative References                                ......................... 7
   11. Acknowledgments ............................................ 7

1. Introduction

   RWA is one of the core issues in the optimization of network
   performance. Currently, due to a variety of physical and technical
   constraints, optical network cannot provide all the required physical
   properties, thus the study and solution of the problem plays a vital
   role to optimize the network and improve the utilization rate of
   cyber source.

   The Routing and Wavelength Assignment (RWA) is one of the key
   problems of the optimization of network performance. At present, the
   RWA problem is usually solved by being decomposed into the routing
   sub problem and wavelength assignment problems.

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   However, in the existing solutions of RWA, the allocation of routing
   and wavelength only considers the network performance such as network
   throughput, required wavelength, optical fiber number and optical
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