Improving TCP Performance in Vehicle-To-Grid (V2G) Communication

Round 1

Reviewer 1 Report

Relatively much space is given to the introduction of the background, on the expense of own work and  contribution.

The simulations should be described in more detail (no specific information on the simulation design and conditions is provided; however, the concluding statements are based solely on simulation results).

The paragraph on lines 96 to 102 is repeated on lines 110 to 116.

Table 2 does not show throughput units.

The explanation of figure 11 should be clearly identified for 11a and 11b (lines 341 and 358, respectively).

There are many minor mistakes in grammar (e.g. "change cable" instead of "charging cable"); thorough proofreading is necessary.

Author Response

Response to Reviewer 1 Comments

Point 1: The simulations should be described in more detail (no specific information on the simulation design and conditions is provided; however, the concluding statements are based solely on simulation results).

Response 1: We provided more detailed simulation configuration information on page 4 and change figure 3.

Point 2: The paragraph on lines 96 to 102 is repeated on lines 110 to 116.

Response 2: We removed the repeated paragraphs.

Point 3: Table 2 does not show throughput units.

Response 3: The unit is Mbps and we inserted it in the caption.

Point 4: The explanation of figure 11 should be clearly identified for 11a and 11b (lines 341 and 358, respectively).

Response 4: We inserted the subfigure number for them.

Point 5: There are many minor mistakes in grammar (e.g. "change cable" instead of "charging cable"); thorough proofreading is necessary.

Response 5: We corrected the grammatical error.

Author Response File: Author Response.pdf

Reviewer 2 Report

The topic of bi-directional flow of energy between the grid and the vehicle (V2G) is very interesting and new. In addition to the energy flow, the vehicle and charging station exchange information on charging parameters, and there is also an exchange of information (especially billing information) between the vehicle and the energy operator. The authors attempted to analyze the performance of various TCP protocol standards in conditions of limited network capacity (PLC limit) and in the presence of noises resulting from the proximity of high-current circuits.

The article is interesting, but requires minor additions:

The V2G model is primarily a two-way energy flow between the electric vehicle and the charging station. If necessary, the vehicle can push energy back to the electric grid. Data exchange between the vehicle and the Internet is necessary but secondary. The authors should describe it in the introduction. Using "V2G" in the title, at least basic tests should be carried out on a real charging infrastructure for electric vehicles. Without such tests, estimating a max packet loss rate of 5% is guessing. The text has few editorial errors:

-On lines 13, 49, instead of "charge" is "change"
-The text in lines 89-102 and 103-116 is repeated
-There is no Figure number on line 142

Author Response

Response to Reviewer 2 Comments

Point 1: On lines 13, 49, instead of "charge" is "change"

Response 1: We corrected the grammatical error.

Point 2: The text in lines 89-102 and 103-116 is repeated

Response 2: We removed the repeated paragraphs.

Point 3: There is no Figure number on line 142

Response 3: We inserted the figure number.

Author Response File: Author Response.pdf