• What is the concept fractional sampling?
  • Is there a relationship between the fractional sampling and interpolation?
  • And how does the fractional sampling help in convert the SIMO (Signal input multi-output) channel into SISO (single input signal output)?
  • $\begingroup$ These are really three questions, and we should focus on one. Which is the question you want to have answered the most? $\endgroup$ – Marcus Müller May 28 '18 at 14:05
  • $\begingroup$ @MarcusMüller is it possible to answer of the three questions ? ... OK, in that case I prefer having the answer of third one .. $\endgroup$ – New_student May 28 '18 at 14:08
  • $\begingroup$ I would have expected you do not start with the one that requires understanding of both the other ones? $\endgroup$ – Marcus Müller May 28 '18 at 14:21
  • $\begingroup$ Ok, answer anyone of them ... I thought that first two questions can understand them from other friends or search online, but the third, I think it's difficult to get its answer online. $\endgroup$ – New_student May 28 '18 at 14:26
  • $\begingroup$ Well, we do expect you to do your own research; I'm hoping a bit for some context of your question, because "fractional sampling" is a rarely used term, and it can mean rational resampling ratio and something like sampling a time signal at fractions of the symbol times or something similar, so it's hard to give you an answer that is as good as the one you can give yourself - but if you give us some context in which you've read that term, we can try! $\endgroup$ – Marcus Müller May 28 '18 at 14:54

For the first question, you can get enough details in the paper https://ieeexplore.ieee.org/document/4394307/ , for second question, there is not direct relation but you can read about fractional sampling then you will know the relationship between them. the third question, refer to the paper in link https://ieeexplore.ieee.org/document/1344460/ .. Just read the two papers and if something still not clear, let me know.

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