## 5 Results of the WDM and OAM Channel Allocation Methods
### Algorithms for Allocation Methods Used in the WDM Operating Technology
For analysis of considered algorithms for allocation methods, a simulation model related to the proposed OAM&WDM-PON architecture with the P2 MP topology is realized in the MATLAB programming environment. In this simulation model, various allocation methods for different operating technologies can be analyzed in detail. Then, acquired simulation results are evaluated particularly. Finally, appropriate efficiencies and possible savings of WDM and OAM channel utilization can be suitably compared. #### Future Challenges and Research Directions

There can be considered many future challenges and ways of the research work extension that can be involved in the presented simulation model. Some of them are introduced here. Simulations can be extended to larger scales of ONUs and dynamic traffic patterns to strengthen the generality of findings. The SLA level can be defined as a number of nines as normally exploited by service providers. Input parameters of algorithms can be extended, and fiber lengths and a number of connectors influencing the total path attenuation can be involved. The available wavelength range can be divided into download and upload bands for more precise WDM channel allocation. Before selecting the appropriate operating technology, a selection of the appropriate network topology can be added. For comparing bandwidth allocation methods used in TDM technology, in the OAM/TDM combination or in the TDM/WDM combination, the addition of the TDM technology into the simulation model can be realized. #### Funding:

This work is a part of research activities conducted at Slovak University of Technology Bratislava, Faculty of Electrical Engineering and Information Technology, Institute of Multimedia Information and Telecommunications Technologies, within the scope of the project VEGA No. 1/0322/24 \"Advanced algorithms for multichannel optical networks in the F5G architecture for implementing access wireless technologies in the NG-PON converged infrastructure\". #### Institutional Review Board Statement:

Not applicable. #### Informed Consent Statement:

Not applicable. #### Data Availability Statement:

Data are contained within the article. #### Conflicts of Interest:

The author declares no conflicts of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript or in the decision to publish the results. ## Abbreviations

The following abbreviations are used in this manuscript: \begin{tabular}{l l} AI & Artificial Intelligence \\ BER & Bit Error Rate \\ CW & Continuous Wave \\ DM & Dimensional Multiplexing \\ DSP & Digital Signal Processing \\ DWA & Dynamic Wavelength Allocation \\ FMF & Few-Mode Fiber \\ FSO & Free Space Optics \\ GPON & Gigabit-capable Passive Optical Network \\ HSI & High-Speed Internet \\ IPTV & Internet Protocol Television \\ LG & Laguerre Gaussian \\ \end{tabular} 

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