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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Supporting Heterogenous Traffic on Top of Point-to-Multipoint Light-Trees.

Masab Iqbal1, Luis Velasco1, Marc Ruiz1

  • 1Advanced Broadband Communications Center (CCABA), Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain.

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Summary
This summary is machine-generated.

New optical constellation slicing (OCS) and digital subcarrier multiplexing (DSCM) offer efficient and cost-effective solutions for 5G optical transport. OCS shows superior efficiency for mixed traffic, while DSCM provides greater savings for point-to-point traffic.

Keywords:
metro and access networksmultilayer optical networksoptical point-to-multipoint

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Area of Science:

  • Optical networking
  • Telecommunications engineering
  • Signal processing

Background:

  • 5G and beyond services require advanced optical transport solutions for efficiency and cost reduction.
  • Optical point-to-multipoint (P2MP) connectivity is explored to reduce capital and operational expenditures.
  • Digital subcarrier multiplexing (DSCM) is a known technology for optical P2MP.

Purpose of the Study:

  • To propose and evaluate optical constellation slicing (OCS) as a novel technology for optical P2MP connectivity.
  • To compare the performance of OCS with DSCM and traditional optical point-to-point (P2P) solutions.
  • To analyze efficiency, throughput, and cost for different traffic scenarios.

Main Methods:

  • Detailed description and simulation of the proposed OCS technology.
  • Comparative analysis of OCS and DSCM using bit error rate (BER) for access/metro applications.
  • Quantitative study comparing OCS, DSCM, and traditional P2P for dynamic P2P and mixed P2P/P2MP traffic.

Main Results:

  • Both OCS and DSCM demonstrate good BER performance for access/metro applications.
  • OCS and DSCM offer improved efficiency and cost savings over traditional optical P2P solutions.
  • For P2P-only traffic, OCS/DSCM are up to 14.6% more efficient; for mixed traffic, OCS is 12% more efficient than DSCM.

Conclusions:

  • OCS and DSCM are viable alternatives to traditional optical P2P for supporting 5G services.
  • OCS provides higher efficiency in mixed traffic scenarios, while DSCM offers greater cost savings in P2P-only scenarios.
  • The choice between OCS and DSCM depends on the specific traffic mix and cost considerations.