Customer Edge Downstream Detection for Automatic Restoration Scheme in FTTH-PON Distribution Network
, Zulhedry Abd. Manaf 1,2, Iszan Hana Kaharudin 3 and I-Shyan Hwang 4Round 1
Reviewer 1 Report
This paper describes a protection and restoration function method utilizing a downstream photo-detection method and an optical switching mechanism. The proposed work is relevant and of great interest to the optical communications research community. However, the presentation and the results are not concise and need major review to be suitable for publication. The results are presented in an excessive number of figures (27 figures), which confuses the reader. Furthermore, some of the figures, such as Fig. 8, are unclear. Furthermore, some of the results are unrealistic, such as the BER values in Figs. 21 (BER = 1E-127) and 27 (BER = 1E-256), which are excessively low!
Author Response
The comments have been successfully addressed
Reviewer 2 Report
The paper describes the method for 939 protection and restoration function utilizing downstream photo detection method and 940 optical switching mechanism, or known as PROMO module. Overall it sounds well. i have some suggestions.
1- Reference for the table 1,figure 1 and table 2
2- Reference citation is old
update with some of the following references
1. “Bayesian auction game theory-based DBA for XG symmetrical PON,” Opt. Quantum Electron., vol. 54, no. 5, p. 316, 2022, doi: 10.1007/s11082-022-03721-9
2. “ONU migration using network coding technique in Virtual Multi-OLT PON Architecture,” Opt. Fiber Technol., vol. 68, p. 102788, 2022, https://doi.org/10.1016/j.yofte.2021.102788. (I. F= 2.5)
3. “Traffic aware cyclic sleep‐based power consumption model for a passive optical network,” Int. J. Numer. Model. Electron. Networks, Devices Fields, Feb. 2022, doi: 10.1002/jnm.2996.
4. “A Bibliometric Analysis and Visualization of Passive Optical Network Research in the Last Decade,” Opt. Switch. Netw., vol. 39, p. 100586, 2020, DOI: https://doi.org/10.1016/j.osn.2020.100586 (I.F=2.5)
5. “Traffic-Adaptive Inter Wavelength Load Balancing for TWDM PON,” IEEE Photonics Journal, vol. 12, no. 1, pp. 1–8, 2020. (I. F= 2.8)
6. Dynamic Bandwidth Allocation Algorithm with Demand Forecasting mechanism for Bandwidth Allocations in 10-Gigabit-capable Passive Optical Network. OPTIK, 2019 (I. F= 2.2)
7. “Demand Forecasting DBA Algorithm for Reducing Packet Delay with Efficient Bandwidth Allocation in XG-PON,” Electronics, vol. 8, no. 2. 2019 (I. F= 2.4)
8. “Analyzing distributed denial of service attacks in cloud computing towards the Pakistan information technology industry,” Indian J. Sci. Technol., vol. 13, no. 29, pp. 2062–2072, 2020, doi: 10.17485/ijst/v13i29.1040
3. Results acheived may be mentioned in abstract.
4. Paper overall appears to be the report.
5. Figure 5/6 referrence and clean the figures or re draw. figure 8 redraw
6. experiment details missing.
7. Optisytem diagrams are not clear to understand the design/logic
8. Need to summarize and clarity in the contribution required. Simmulation/ design/different experiments methods
Author Response
The comments have been successfully addressed
Author Response File: 
Author Response.docx
Round 2
Reviewer 1 Report
The manuscript has improved, so I recommend accepting it in its present form.
Author Response
No comment from the reviewer except to accept the article as it existing form
Reviewer 2 Report
Authors should revisit the comments for the proper addressal.
The paper describes the method for protection and restoration function utilizing downstream photo detection method and optical switching mechanism, or known as PROMO module. Overall it sounds well. i have some suggestions.
1- Reference for the table 1,figure 1 and table 2
2- Reference citation is old
update with some of the following references
1. “ONU migration using network coding technique in Virtual Multi-OLT PON Architecture,” Opt. Fiber Technol., vol. 68, p. 102788, 2022, https://doi.org/10.1016/j.yofte.2021.102788. (I. F= 2.5)
3. Paper overall appears to be the report.
4. Figure 5/6 referrence and clean the figures or re draw. figure 8 redraw
5. experiment details missing.
6. Optisytem diagrams are not clear to understand the design/logic
7. Need to summarize and clarity in the contribution required. Simmulation/ design/different experiments methods
Author Response
The comments have been addressed successfully
Author Response File: Author Response.docx
