Application of IoT Quadrotor Dynamics Simulation

Round 1

Reviewer 1 Report

 

1. The paper is weakly structured. You better check the conventional structure of MDPI papers and re-structure yours. For example, why the related work part is inside the Introduction section?
2. What is the purpose of having one sub-subsection in the related work (ie., 1.1.1. Unmanned Quadrotor)?
3. Section 1.2 is 3 lines? does this really deserve to be a section?
4. There is a huge number of related references in the domain, for example, “UAV and fog computing for IoE-based systems: a case study on environment disasters prediction and recovery plans”, where you can discuss and compare your work against. This will certainly enrich and strengthen the related work section.
5. Some of the figure seem to be useless, unless you add more details onto them. Eg., Figure2, what is the point of it?
6. Having 36 equations in a paper make it a bit hard for the reader to grasp. Can you add an algorithm or a flowchart to depict the system and how these equations are used? Please try.
7. There is no caption on the x and y of Figures 10-12
8. References are too few for a journal paper. You certainly need to add more to showcase that you covered the literature well.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

It's always a great pleasure to read a paper like this one from people with expertise in the area who can really dive in and develop and find more significant findings. Wind turbulence is always a big challenge in the outdoor communications and serious for UAV comm. What authors propose can be really beneficiary to the future UAV based IoT/5G beyond communications particularly when there have been so many papers which only cope with optimization problems and hard to implement. Whoever touches this area should be considered with some prize. 

 

About the introduction part, authors may be advised to consider some literature as additional references, to hopefully make the paper a bit more comprehensive and appealing to more potential audience:

[1] Y. Huo, F. Lu, F. Wu and X. Dong, "Multi-Beam Multi-Stream Communications for 5G and beyond Mobile User Equipment and UAV Proof of Concept Designs," 2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall), 2019, pp. 1-5, doi: 10.1109/VTCFall.2019.8891154.

[2] Z. Ren, H. Li, Y. Zhao and D. Zhang, "The study of wind resistance testing equipment for unmanned helicopter," 2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2017, pp. 1593-1597, doi: 10.1109/IAEAC.2017.8054282.

 

Author Response

We have added more related work, including the two useful papers.

Reviewer 3 Report

The introduction contains subparts that are strange to see in a paper. They can be removed.   The paper is interesting as it develops a Unity3D-based quadrotor dynamics simulation component, tests it, and reports its analysis. The paper is interesting and suitable for publication.

Author Response

We have restructured or removed some sub-subsections in the Introduction section. We also added som releated references, including the paper the comment mentioned.

Round 2

Reviewer 1 Report

I feel that the authors have made good improvements to the paper. I just feel that Fig3 is not really needed as MVC is common and the figure does not add any new addition to the traditional MVC diagram.