Survivability Mapping Strategy for Virtual Wireless Sensor Networks for Link Failures in the Internet of Things

Round 1

Reviewer 1 Report

This paper presents the solution for the link failure issue in wireless sensor networks. For this, a new mapping algorithm has been proposed that promptly creates an alternative route and reduces the failure recovery delay. The paper is well written and presented, however, I have the following comments:

 

1)       The authors have presented the standalone “Related work” section. This section needs to be heavily improved. Most of the section contents are simple descriptions and overviews; instead, the authors should discuss the strength, weaknesses, and limitations of existing related approaches in WSNs, which will increase the readability of the paper. Besides, avoid repeating phrases in the manuscript. I would recommend presenting the comparison of existing related work with the proposed work in a tabular form, which will provide an idea to the reader of how the proposed work is novel.

1.       The abbreviation should be defined when it appears first in the text. For instance, in the introduction section, what is VSNNS? Similarly, WSNS in section 2 (if it is Wireless Sensor Networks, then it should be WSNs), QoS in sections 3 and 1, SVNE in section 5, etc.

2)       I would suggest adding a table in subsection 5.1 to describe experimental setting parameters and their values. What other algorithms (layers - 2, 3, 4) for WSN were used in the experimental setup?

3)       As C-SVNC and N-SVNE algorithms have been considered for comparison with the proposed work; however, why these two algorithms are chosen and how the proposed algorithm is different from these two is not clear in the manuscript. The authors must include the comparison, in terms of various features, of these two algorithms with the proposed work in a tabular form, which should justify the need for a new link-failure recovery algorithm.

4)       The mathematical notations are ambiguous. Please define all of them in a table. Moreover, some explanations of equations are unclear.

5)       In subsection 3.1, if possible, please present a graphical representation of the (physical network) undirected graph with virtual nodes and links. Frankly speaking, I don’t see any significance in Figure-1.

6)       Please describe all the performance metrics used in the algorithm evaluation. Define all five metrics serially under the 3.3 subsection. How do you define network reliability in the evaluation?

7)       Another important concern is algorithm evaluation. In the main results, I didn’t see any evaluation of network reliability.

8)       Please add a discussion section before the conclusion section.

9)       Please define all abbreviations used in the manuscript.

10)   Please fix the typos.

 Overall, I do not recommend the current form of the paper for publication.

 

Minor editing 

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments:

A fast routing policy in WSN is solved by a link failure-oriented survivable virtual sensor network mapping algorithm (F-SVNE) method in this study.

Comments:

Major issues

- None

Minor issues

- Maybe you should put the structure of the paper as a separate paragraph before section 2.

- Section 5, the experimental results compared can be put in Tables.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

The authors have carefully addressed the comments and suggestions. Thank you for that. I would recommend accepting this paper. 

Minor editing of English language required