Results 51 to 60 of about 17,709 (313)
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 +4 more
core +1 more source
On OTFS using the Discrete Zak Transform
2022 IEEE International Conference on Communications Workshops (ICC Workshops), 2022 In orthogonal time frequency space (OTFS) modu-lation, information-carrying symbols reside in the delay-Doppler(DD) domain. By operating in the DD domain, an appealingproperty for communication arises: time-frequency (TF) disper-sive channels encountered in high mobility environments becometime-invariant.
Franz Lampel +2 more
openaire +1 more source
Enhancing retinal images by nonlinear registration
, 2014 Being able to image the human retina in high resolution opens a new era in many important fields, such as pharmacological research for retinal diseases, researches in human cognition, nervous system, metabolism and blood stream, to name a few.
Chenegros, Guillaume +3 more
core +3 more sources
Bi(OTf)3 and SiO2-Bi(OTf)3 as Effective Catalysts for the Ferrier Rearrangement# [PDF]
Molecules, 2005 Bi(OTf)3 and SiO2-Bi(OTf)3 are found to effectively catalyze the Ferrierrearrangement of tri-O-acetyl glycals with different alcohols providing an effective routeto 2,3-unsaturated O-glycosides with good anomeric selectivity and good to excellentyields after short reaction times.
J. Babu, A. Khare, Y. Vankar
openaire +3 more sources
A Complex Wavelet-Based OTFS Scheme for LEO Satellite Communication
IEEE AccessThis study investigates a wavelet-aided orthogonal time-frequency space (W-OTFS) modulation system operating in low earth orbit (LEO) satellite systems. The discrete wavelet transform (DWT) underlying the complex input signals (high-order modulation) is ...
Saifur Rahman Sabuj, Han-Shin Jo
doaj +1 more source
Reforming securities and derivatives trading in the EU: from EMIR to MiFIR [PDF]
, 2013 The financial crisis has generated a deep revision of the regulation of securities and derivatives markets. In this paper, we critically examine the extent to which current reforms, such as the European Market Infrastructure Regulation and the proposed ...
Ferrarini, Guido, Saguato, Paolo
core +1 more source
Zak-OTFS Implementation via Time and Frequency Windowing
IEEE Transactions on CommunicationsThis paper presents an efficient practical Zak-OTFS modulation implementation using time and frequency windowing methods. We present two general classes of delay-Doppler (DD) twisted convolution (TC) filters (Type-1 and Type-2), and show that they can be
Swaroop Gopalam +5 more
semanticscholar +1 more source
OTFS: Interleaved OFDM with Block CP [PDF]
2020 National Conference on Communications (NCC), 2020 Orthogonal time frequency space (OTFS) modulation is a recently proposed waveform for reliable communication in high-speed vehicular communication scenarios. It has better resilience to inter-carrier interference (ICI) than orthogonal frequency division multiplexing (OFDM).
Vivek Rangamgari +3 more
openaire +2 more sources
Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment
Advanced Engineering Materials, EarlyView.This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li +5 more
wiley +1 more source
Performance and evaluation of OTFS modulation systems using different high mobility channels [PDF]
International Journal of Electronics and TelecommunicationsThis research examines how Nextgen wireless systems can benefit from Orthogonal Time Frequency Space (OTFS) modulation in different high-mobility channel situations. We test the BER performance of OTFS and OFDM with varying lengths of symbol under varied
Sura H. Khadum +2 more
doaj +1 more source