kumoh national institute of technology
Networked Systems Lab.

Review Comment

NSL > Education> Review Comment
WILLIAMS - WFCS 2017
By :
Date : 2017-04-21
Views : 61

Dear author,

We regret to inform you that your paper Analyzing the Optimal Channel paths in Ultra-Wide Band networks:Applicable to Avionic Systems. has not been selected for presentation at WFCS 2017, to be held in Trondheim, Norway, from the 31st of May to the 2nd of June 2017. Find attached the reviews for your submission, which we believe can help you improving your work even further.

We would like to thank you for submitting to WFCS 2017. The conference program for WFCS 2017 will appear on the conference homepage soon. We are looking forward to meeting you in Trondheim nevertheless.

Best Regards


----------------------- REVIEW 1 ---------------------
PAPER: 31
TITLE: Analyzing the Optimal Channel paths in Ultra-Wide Band networks:Applicable to Avionic Systems.
AUTHORS: Williams Nwadiugwu and Dong-Seong Kim

Overall evaluation: -1 (weak reject)

----------- Overall evaluation ----------- The authors propose an optimal channel path selection scheme for Ultrawide Band network (UWB) for Avionic systems.

The paper is poorly written, poorly organized and therefore, difficult to read. Besides, many grammar errors and typos were found.

Section III B) (UWB channel modeling) is confusing and should be better explained in order to better understand

As an example:
"The UWB channel can support large bandwidth and some conventional channel models but they did not consider the new effect which arises as a result of such large bandwidth"

what are these effects ?

Next:

"The central unit theorem is also not applicable here because only a few multipath components will overlap with each other. Rayleigh is not used for small scale fading, it is recommended to use log normal or Nakagami distribution TG3a recommended using lognormal distribution for the multipath gain magnitude".

What is the relationship between the central unit theorem and multipath here? The authors should give more explanation.


Authors proposed and implemented the Saleh-Valenzuela (S-V) approach. However, no reference to this approach is presented.
Hence, it is difficult for a reader to understand how the approach works, what both cluster and ray arrival rates stand for, and so on.


Here is the reference you need include:

@ARTICLE{1146527,
author={A. A. M. Saleh and R. Valenzuela}, journal={IEEE Journal on Selected Areas in Communications}, title={A Statistical Model for Indoor Multipath Propagation}, year={1987}, volume={5}, number={2}, pages={128-137}, keywords={Buildings;Multipath channels;Attenuation measurement;Delay effects;Dynamic range;Helium;Hospitals;Indoor radio communication;Production facilities;Pulse measurements;Radio transmitters;Receivers}, doi={10.1109/JSAC.1987.1146527}, ISSN={0733-8716}, month={February},}


Abbreviation such as MPC, RMS (Root Mean Square) must be defined.

Even though authors include Figure 2, there is no reference to this Figure in the paper.

Authors mentioned that "the IEEE 802.15.3a standard Ultra Wide Band propagation channel is effectively described" in the paper (see abstract). However, the description is not presented.


----------------------- REVIEW 2 ---------------------
PAPER: 31
TITLE: Analyzing the Optimal Channel paths in Ultra-Wide Band networks:Applicable to Avionic Systems.
AUTHORS: Williams Nwadiugwu and Dong-Seong Kim

Overall evaluation: -1 (weak reject)

----------- Overall evaluation ----------- This paper is on optimal channel selection in ultra-wide band networks in the context of avionics systems.

Though the paper addresses an important issue, the authors fails to clearly bring out their technical contributions(if any). Also since the paper contains too many grammatical and presentation issues, whatever are the nicer elements also gets lost in them.

- Introduction: Line 6, 'and utmost'.. either remove this part or say utmost what..
- line 8 : 'which increase' ....'aircraft'
-Related works: line 10 : 'modes'
-System model, line : '.. that has the capacity'
- System model, Para 2, lIne 6: what is N?
-A. Proposed scheme, line 2 : ' two parameters'
-A. Proposed scheme, line 7 : ' source has to'
- B. UWB channel modeling : para 2, line 2: 'statistics'
- Fig 2 & Fig 3 : Not referred in text
- Fig 4: difficult to read in print
- References : I assume you are using Latex. If so, use {} in bibliography items around abbreviations so that they come as capitalises.. eg.. IEEE, LAN, UWB;...
-Ref 1: Title of paper is wrong. Should be 'Fly-by-wireless for next generation aircraft: Challenges and potential solutions'


----------------------- REVIEW 3 ---------------------
PAPER: 31
TITLE: Analyzing the Optimal Channel paths in Ultra-Wide Band networks:Applicable to Avionic Systems.
AUTHORS: Williams Nwadiugwu and Dong-Seong Kim

Overall evaluation: -3 (strong reject)

----------- Overall evaluation ----------- The paper deals with optimal relay assignment in ultra-wideband networks using in avionics systems. The problem is not very well formulated, and the related works more or less unrelated as no relay selection papers are cited.The proposed scheme is very briefly described. It is stated that CTS (without defining what CTS is) is used for potential relay nodes to identify themselves. Next it is stated that direct transmission or relaying is selected on the basis of BER, but there is no explanation on how this BER is obtained for different links. Nor is the complexity of the BER assessment or how a specific relay is notified that it was selected. Hence, the main contribution is not explained at all in the paper. Next, the UWB channel model is explained without any references or explanations as to why the channel model looks like it does. Nor is it explained how it is used to assess the BER of different links. Finally, a confusing Matlab evaluation is given, and several figures co!
ntaining only one curve (!) in each is given, but no explanation about how this evaluation relates to the contribution is given.


----------------------- REVIEW 4 ---------------------
PAPER: 31
TITLE: Analyzing the Optimal Channel paths in Ultra-Wide Band networks:Applicable to Avionic Systems.
AUTHORS: Williams Nwadiugwu and Dong-Seong Kim

Overall evaluation: -2 (reject)

----------- Overall evaluation ----------- The focus of the paper does not fit the conference.

The topic (UWB communication between system elements) may fit WFCS, although the paper's target is to discuss channel distributions and to verify that there is a possible parametric model solution for the problem, with the Saleh-Valenzuela approach. Given that UWB is suitable for avionic systems in general, the authors nicely fit a four channel models with different parameters, and compare the results briefly. The results in Figures are not compared and discussed with enough detail.

There are a few disturbing typos (?) in the paper, e.g. using "db" instead of dB in many places.
The title of the referenced papers 1 and 11 starts with low caps.
The paper title is missing a space character after the ":", ends with a (.), and don't use proper capitalization ("paths" and "networks" should start with capital letters).