Title: IoT-based Adaptive Network Mechanism for Reliable Smart Farm System
Journal: Computers and Electronics in Agriculture
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Comments from the editors and reviewers:
Review of paper: IoT-based Adaptive Network Mechanism for Reliable Smart Farm System
The paper deals with a relevant problem on network performances in the specific environment of a greenhouse. However, the number of tested protocols as well as the number of experiments is very limited. The description of materials and methods used in the experiments could be improved. Legends should be added to figures. The descriptions of the figures in the text does not always correspond with the figures.
A deficiency in the English expressions of the paper has been identified. Please have the paper polished by a professional English editor or native speaker. Please ensure that the numerous grammatical and punctuation errors are corrected throughout the manuscript.
For more detailed remarks (see below):
Line 4: a word is missing: ¡°Experimental results show the ???? can maintain the network performance of system.¡±
Rephrase the sentence: ¡°Generally, the internet of things (IoT) system for agriculture application is deployed in the large area in which consist of significant interferences¡±: suggestion ¡°...is used in an environment where significant interferences can occur¡±.
Rephrase the sentence: ¡°Thus, in this paper, the adaptive network mechanism is designed to achieve reliable for a smart farm¡¦.can be maintained¡±: suggestion: ¡°In this paper an adaptive network mechanism is designed to improve the network performance of the system, in order to achieve a more reliable smart farm system.¡±
What do the authors mean with ¡°¡¦to send sensor reading data which only have small amounts size of data¡± ??? you can have the size of data files (in bytes) and the amount of data that can be stored ¡¦.but what means ¡°small amounts size of data¡± ?
Line 13: ¡°In the agriculture environment, commonly the system is deployed in ¡¦¡±: specify the name of the system: ¡°smart farm system¡± or ¡°IoT system¡± or ????
Lines 14 to 15: suggestion to change in : ¡°Therefore, it is very sensitive to failures while ¡¦¡±
Lines 24 to 25: suggestion to change in ¡°¡¦.on IoT-based smart agriculture systems. Previous work mostly focused on ¡¦¡±
Line 29: ¡°Compared to previous work, this paper considers ..¡±
Line 31: ¡°¡¦ the study from  proposed a network model which considers Quality of Service (QoS) for the ¡¦¡±
Line 32: rephrase this sentence: suggestion: ¡°However, QoS was only evaluated by computer simulation in this study.¡±
Line 40: ¡°small amounts of the size of data¡± ???? see remarks above
Line 44: ¡°Therefore, this can cause a delay if it is used to transmit video data frames.¡±
Line 45: ¡°Table 1 compares the features of different network technologies¡±
Line 50 ¡°¡¦is very sensitive for failures. For instance, if there was a faulty relay node, video images and sensor data¡¦¡±
Line 52: What do the authors mean by ¡°it could destroy real-time properties of farm monitoring¡¦¡± ?
Line 61: ¡°¡¦be used to transmit sensor data.¡±
2. Internet of Things (IoT) to Realize Smart Farm¡±
Line 68: ¡°¡¦.to Realize a Smart Farm System¡±
Lines 71 to 74: ¡°Various devices can be deployed over a large area to gather data. Algorithms that are used at the server side can analyze those data and provide monitoring results or even decisions to ¡¦¡±
Lines 76-77: rephrase the sentence ¡°We elaborate on the current solutions of IoT for the smart farm¡± ???
Line 81-82: ¡°¡¦One device in every ZigBee network acted ¡¦.¡±
Line 92: ¡°..farm in these studies relied on a single network ¡¦¡±
Line 95: ¡°Many previous designed systems utilized¡¦¡±
Line 119: ¡°This work also implemented a message recovery algorithm¡¦¡±
Line 135-136: ¡°These LoRaWAN nodes were divided into ¡¦¡±
Line 137-138: The collector nodes group had a role in gathering and transmitting sensors¡¯ reading values to the cloud. On the other hand, the executors¡¯ group was responsible for controlling the water sprinklers through actuators.¡±
Line 141: ¡°¡¦ sensor data¡¦¡±
3. Performance Comparison
Line 169-170: ¡¦.we choose two network protocols to evaluate: LoRawan and IEEE 802.11 ac. LoRaWAN offers¡¦. However, IEEI 802.11 ac has a better data rate than LoRaWAN. In this secton, we ¡¦.¡±
Line 178-179: Rephrase this sentence.
Figures 2 and 3. Unit of PER ? (%)
Please give more information about the packets tested ?
Line 184: ¡°As mentioned above, we conduct a measurement¡¦¡±
Line 195: ¡° Thus, we conclude that the network performances of IEEE 802.11 ac is close to the ideal when it is deployed in LoS conditions. ¡°
Line 200 to 203: ¡°Next, an indoor measurement test in a greenhouse was conducted to analyze the performance of both protocols. The measurement test was carried out with two different scenarios: a vertical and diagonal test, illustrated in detail in Fig. 4.¡±
Please explain what you mean with vertical and diagonal test and make it more clear in the figure.
Use a legend in figure 4: meaning of coloured cross, black dots, etc.
Line 213: ¡°¡¦requires another hop ¡¦¡±
Line 220: ¡°Fig. 7 depicts our testing scenario for the outdoor measurement test. ¡°
Add a legend to fig. 7 (see remark on fig. 4)
In line 222 to 223 the authors refer to Fig. 8 and the fact that the lowest average RSSI value is obtained at the distance of 748 m. I do not see a distance of 748 m in Fig. 8 ???
Line 234: ¡°¡¦is proposed to bring reliable ¡¦¡±
Line 237-238: ¡°¡¦uses two different protocols: IEEE 802.11 ac and LoRaWAN.¡±
Line 247: ¡°¡¦will shift to LoRaWAN protocol when any problem occurs..¡±
Line 248: ¡°Therefore, the sensor data¡¦¡±
Line 250: ¡° that the farmer is always able to monitor the plants¡¯ condition.¡±
Line 256: ¡°¡¦ more than the threshold¡¦¡±
Line 260: ¡°¡¦is successful the sensor data¡¦
Line 263: ¡°We evaluated¡¦¡±
Figure 14: use the same colours for the three protocols as in fig. 13.
Line 290: ¡°..for sending the sensor data ..¡±
Line 297: ¡°.. to achieve a reliable network of a smart farm.¡±
(Since you asked me to substitute with a very short response time for a reviewer who did not provide a review, I was able to read the manuscript thoroughly, but do not have the time to write a long review...)
This is a topic of much contemporary importance. The information on the systems is not new or innovative, but the test data may be useful. It would greatly help the manuscript if there was just some more performance data. Either in replications or in some new situations. It should not take that much more time since the systems are already there---can it be done?
The manuscript is of an appropriate length.
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