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1 | Timestamp | Affiliation | Tentative article title | Tentative author list | ||||||

2 | 19/04/2022 17:46:26 | Academia | Securing Wireless Sensing in the Perceptive Network | Yuanhao Cui, Fan Liu, Ya-feng Liu, Christos Masouros, Tsung-Hui Chang, Visa Koivenun, Athina Petropulu | ||||||

3 | 2 | How to design low-complexity precoding for MIMO-OTFS? | ||||||||

4 | 3 | What are the typical coherence time and coherence bandwidth in delay-Doppler domain? | ||||||||

5 | 4 | What are the objectives of time domain pulse shaping and time-frequency domain windowing? | ||||||||

6 | 5 | Will the equivalent channel response also have a sparse representation if the ISFFT kernel is replaced by other unitary transformations, e.g. Hadamard transform? | ||||||||

7 | 6 | Are the achievable rates of OTFS and OFDM the same? | ||||||||

8 | 7 | Is OTFS suitable for underwater acoustic communications (UAC)? | ||||||||

9 | 8 | Will OTFS perform better than OFDM for sensing purpose? | ||||||||

10 | 9 | What's the weak points of OTFS? | ||||||||

11 | 10 | what could be the advantages and challenges by introducing otfs in massive mimo? | ||||||||

12 | 11 | What is the lower bound of the OTFS grid.(Size of M and N) | ||||||||

13 | 12 | How to design OTFS in radar system | ||||||||

14 | 13 | Is OTFS good for security purpose? | ||||||||

15 | 14 | What is the difference between OTFS and OFDM used for radar parameter estimation？ | ||||||||

16 | 15 | When OTFS is used for radar parameter estimation, what is the difference with traditional radar parameter estimation ，e.g. subspace algorithm ? | ||||||||

17 | 16 | At present, what is the core problem that OTFS needs to solve in ISAC？ | ||||||||

18 | 17 | What is the relationship between OTFS, Zak transform, and short time Fourier transform (STFT)? | ||||||||

19 | 18 | Could you please elaborate on the aspects of using OTFS for channel estimation and for data transmission? | ||||||||

20 | 19 | Leaving aside good channel properties of OTFS in high mobility situation, does OTFS have better equalization complexity or performance than OFDM? | ||||||||

21 | 20 | How expensive is the ISFFT operation on hardware when compared to the IFFT operation? Do you think designing an efficient hardware architecture of the ISFFT operation can be a good topic to research on? | ||||||||

22 | 21 | Is there any measured data collected from the real world to demonstrate the low-variability of the channel in the delay-Doppler domain? How robust is it? | ||||||||

23 | 22 | How well can the biorthogonality property be satisfied, if not exactly, by practical waveforms? | ||||||||

24 | 23 | Is a message passing decoder or such complex equalizers essential for the performance of OTFS? | ||||||||

25 | 24 | Will designing better pulse shaping waveforms lead to better performance or a low complexity receiver? | ||||||||

26 | 25 | For OTFS pulse shaping can be designed using hermite functions? | ||||||||

27 | 26 | How do parameters change in the DD domain？ | ||||||||

28 | 27 | In the paper "Orthogonal Time-Frequency Space Modulation: A Promising Next-Generation Waveform", it is mentioned that the DD domain channel can achieve a coherence time of 100ms. What is the definition of coherence time and how is it calculated? | ||||||||

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