Review #54A
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Overall merit
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2. Weak reject

Reviewer expertise
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2. Some familiarity

Paper summary
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The paper proposes a multi-hop single-relay selection for multi cluster head environment.

Comments for author
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Cluster head selection is a highly researched topic, and the paper does not clearly bring out the novelty of this work.... in its current form, it appears uninteresting.


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Review #54B
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Overall merit
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1. Reject

Reviewer expertise
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4. Expert

Paper summary
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In this paper, authors proposed a Supportive Multi-hop Single Relay Selection (MSRS) scheme to enhance Cluster Head (CH) to Base Station (BS) communication.

Comments for author
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Many terms and techniques are mentioned in the work but they are not aligned. For instance, the work has not emphasized on multi-hop communication, rather it seems just a two-hop communication with relay selection. Even, the system model assumptions need proper justification in practical scenarios. Many terms have not been defined at all in the paper e.g., see h_i after eq. (1). The channel model for LOS communication could be different and not just Rayleigh fading.