Results 41 to 50 of about 1,422 (172)

Low-Complexity Iterative Detection for Orthogonal Time Frequency Space Modulation

, 2017
We elaborate on the recently proposed orthogonal time frequency space (OTFS) modulation technique, which provides significant advantages over orthogonal frequency division multiplexing (OFDM) in Doppler channels.
Hong, Yi, Jin, Qianyu, Phan, Khoa T., Raviteja, P., Viterbo, Emanuele   +4 more
core   +1 more source

Wavelet-Aided OTFS: A 2-D Multicarrier Modulation Format for High-Mobility Communications

IEEE Open Journal of the Communications Society
This article proposes a wavelet-aided orthogonal time-frequency space (W-OTFS) modulation as a novel approach for high-mobility vehicular communication.
Mahmudul Hasan Abid, Iffat Ara Talin, Mohammad Abdul Matin, Mohammad Ismat Kadir   +3 more
doaj   +1 more source

Better than a lens -- Increasing the signal-to-noise ratio through pupil splitting

, 2022
Lenses are designed to fulfill Fermats principle such that all light interferes constructively in its focus, guaranteeing its maximum concentration. It can be shown that imaging via an unmodified full pupil yields the maximum transfer strength for all ...
Becker, Jan, Deguchi, Takahiro, Förster, Ronny, Heintzmann, Rainer, Hübner, Uwe, Jügler, Alexander, Ries, Jonas   +6 more
core  

The MIMO-OTFS Technique in the Next 6G Communications

Engineering Access
The orthogonal time-frequency space (OTFS) technique is a promising method of waveform modulation that encodes data in the delay-doppler (DD) domain. OTFS distinguishes itself from conventional multiplexing methods by employing two-dimensional modulation
Ali J. Ramadhan, Ali Taei Zadeh
doaj   +1 more source

Polarization dOTF: on-sky focal plane wavefront sensing

, 2016
The differential Optical Transfer Function (dOTF) is a focal plane wavefront sensing method that uses a diversity in the pupil plane to generate two different focal plane images.
Brooks, Keira J., Catala, Laure, Codona, Johanan L., Crawford, Steven M., Kenworthy, Matthew A.   +4 more
core   +1 more source

SIMcheck:A toolbox for successful super-resolution structured illumination microscopy [PDF]

, 2015
Three-dimensional structured illumination microscopy (3D-SIM) is a versatile and accessible method for super-resolution fluorescence imaging, but generating high-quality data is challenging, particularly for non-specialist users.
B Huang, C Lesterlin, CA Schneider, D Smeets, DT Burnette, EH Rego, FJ Anscombe, J Schindelin, J Zhang, L Schermelleh, L Schermelleh, MG Gustafsson, MGL Gustafsson, R Heintzmann, SW Hell, TT Weil, U Engel   +16 more
core   +2 more sources

Error Performance of Rectangular Pulse-shaped OTFS with Practical Receivers

, 2022
In this letter, we investigate error performance of rectangular pulse-shaped orthogonal time frequency space (OTFS) modulation with a practical receiver.
Lin, Hai, Shen, Cheng, Yuan, Jinhong
core   +1 more source

Emerging Trends in Organic Photoreactions Utilizing Disulfides

European Journal of Organic Chemistry, EarlyView.
Disulfides are versatile, nontoxic alternatives to metal photocatalysts. This review explores their role as photoactivated thiyl‐radical precursors and bifunctional catalysts (HAT/electron shuttling) in diverse transformations. Strategies for electronic tuning and development into recyclable heterogeneous materials are highlighted for sustainable ...
Sunil Kumar, Bolormaa Bayarkhuu, Hong Y. Cho, Jeehye Byun   +3 more
wiley   +1 more source

Efficient signal detector design for OTFS with index modulation

Digital Communications and Networks
In this paper, efficient signal detectors are designed for Orthogonal Time Frequency Space (OTFS) modulation with Index Modulation (IM) systems. Firstly, the Minimum Mean Squared Error (MMSE) based linear equalizer and its corresponding soft-aided ...
Yezeng Wu, Lixia Xiao, Yiming Xie, Guanghua Liu, Tao Jiang   +4 more
doaj   +1 more source

Deep Volumetric Super‐Resolution Imaging in Thick Biological Specimens With Sparse Scanning SIM

Advanced Science, Volume 13, Issue 25, 4 May 2026.
Sparse scanning structured illumination microscopy (SS‐SIM) extends the axial depth in super‐resolution fluorescence imaging by combining rapid laser scanning, pixel‐addressed intensity modulation, and sCMOS camera detection. SS‐SIM yields 1.6× lateral and 1.7× axial resolution gains over wide‐field microscopy and enables imaging through 300–600 µm ...
Sha An, Xuhong Guo, Zhongxia Cai, Yunze Lei, Kai Wen, Hongfei Suo, Xiaoyu Kong, Gerd Ulrich Nienhaus, Peng Gao   +8 more
wiley   +1 more source