Intrinsic Interference Cancellation Scheme for FBMC-OQAM Systems Based on Power Multiplexing
Round 1
Reviewer 1 Report
1) Target system and conditions for research should be presented in detail in introduction. Not clear in this version.
2) Why authors use LS algorithm for channel estimation?
3) Significance of parameter "c" is not clear.
4) Fig.7 - for channel with fixed parameters. In the same time all article - for multipath channels (prefixes, pilots...). Results (graphs) for fading channels should be usefull in this article.
Also, there is no reason to choose Eb/N0 = 30 dB. But it is obvious that the results will change for the different value of Eb/N0.
5) The list of references should be updated with modern articles for 2019-2022.
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This paper proposed an Intrinsic Interference Cancellation Scheme for FBMC-OQAM Systems Based on Power Multiplexing. According to the simulation results and the comparison with the coded auxiliary pilot method, the proposed method is proved to be with higher spectral efficiency and similar power efficiency.
Overall, the paper is well written and easy to read. The following minor comments should be considered before the publication:
- what is the mechanism that makes the proposed method performs better than others. It is recommended to show such information in the results section of this paper, which is helpful for a better understanding of the method.
- Use 0 or zero consistently, see lines 31 and 33 on page 1. From the reviewer's point of view, zero is recommended.
- Put the figures after they were first mentioned, see Figures 5-7.
Other than the above there are no more comments from the reviewer and this is a well-arranged paper.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 3 Report
The authors presented a rather interesting article. After carefully studying it, it seems to me that it will be even better if you take into account the following wishes:
Section 2.1: it is worth adding a reference to the article where the PHYDYAS filter was first introduced http://dx.doi.org/10.1109/ICASSP.2001.940488 Fig 1. and line 155: no description of the overlap-add method What is equal the computational complexity of the algorithm on the transmitting and receiving side compared to CAP method? Formula 10: it is not clear how the value of the parameter "c" should be chosen. 106. Is it possible to assume ideal channel estimation and equalization if intrinsic interference cancellation is necessary at first for channel estimation? If not, then theoretical expressions are required to describe the Operation of the SIC for the signal affected by channel . Section 4:It is not justified why the frame structure from the LTE standard was chosen. Perhaps it is worth applying the proposed algorithm to more modern systems, such as 5G. Fig 5: can't see the difference between the lines, it's worth adding an insertion on a larger scale. Section 4: Add Dependency of Symbol Estimation MSE on SNR, as the most common parameter in assessing the level of intrinsic-interference Section 4: What is equal the PAPR value for the proposed algorithm compared to the CAP?Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
all comments have been corrected
Reviewer 3 Report
Authors adequately answered the questions and comments of reviewer. The article may be published in its current form.
