Sensor Node Activation Using Bat Algorithm for Connected Target Coverage in WSNs

Round 1

Reviewer 1 Report

Some major issues were resolved in this revised version.

The paper looks more readable and complete.

I recommend the authors to include at the final part of the paper a table that summarises the performance level of the proposed algorithm versus other similar approaches from the scientific literature.

Once again, I recommend the algorithm to be validated in some experimental test setup.

Author Response

Please see the attachment.

Reviewer 2 Report

Introduction do not reference enough research to explain the problem under study and the suitability of the proposed approach.

A comment about other bat algorithm would be welcomed in Related Work section.

The last set of algorithms commented in Related Work section should have some information about their performance.

Equation 4: Is the energy of receiving the messages of the BS computed in Cr? It seems that is not. All nodes need to receive BS data, so that this cost should be taken under consideration because it is no negligible.

In section 6.4 the sensing area is set in 10 x 10 m2. It is that correct? It seems that the communication problem in such as short distance is not representative. This small area needs a justification because more realistic problems need areas at least of 100 x 100 m2.

For each scenario, 30 simulations should be accomplished in order to achieve statistical relevance.

For average value, a statistical analysis would be welcomed (e. g. T-Student, ANOVA…) to show if the proposed method achieves a significant improvement.

The benefits of the proposed methods should be justified better compared to the fast convergence of LoCQAl.

Author Response

Please see the attachment.

Author Response File: Author Response.docx