Results 71 to 80 of about 762 (245)

Multiple Target Detection in OTFS-ISAC

ICC 2025 - IEEE International Conference on Communications
In this paper, we propose a hybrid beamforming design for multiple target detection in an orthogonal time frequency space (OTFS)-based integrated sensing and communication (ISAC) multiple-input multiple-output (MIMO) system. The proposed hybrid beamformer allows spatial separation of the beams for communication and sensing, thereby eliminating inter ...
Ruoxi Chong, Mohammadali Mohammadi, Hien Quoc Ngo, Simon L. Cotton, Michail Matthaiou   +4 more
openaire   +2 more sources

Zak-OTFS With Spread Carrier Waveforms

IEEE Wireless Communications Letters
Zak-OTFS (orthogonal time frequency space) modulation is a communication framework that parameterizes the wireless channel in the delay-Doppler (DD) domain, where the parameters map directly to physical attributes of the scatterers that comprise the scattering environment. As a consequence, the channel can be efficiently acquired and equalized. The Zak-
Nishant Mehrotra, Sandesh Rao Mattu, A. Robert Calderbank   +2 more
openaire   +2 more sources

Performance Analysis of Orthogonal Time Frequency Space Modulation and Satellite Visibility Pattern Determination in Space Communications

IEEE Access
Orthogonal Time Frequency Space Modulation (OTFS) is a new modulation technique developed for emerging communication systems. OTFS modulates information symbols in the delay-Doppler domain.
Atif Iqbal, Martin Cruz Vazquez, Sandip K. Chettri, Kamesh Namuduri, S. Chakravarty, Amjad A. Soomro   +5 more
doaj   +1 more source

Katalysatoraktivierung als Schlüsselfaktor in Kreuzkupplungen: Raumtemperatur‐Kupplungen schwacher Nukleophile ermöglicht durch [Pd(1‐MeNAP)TFA]2 Präkatalysatoren

Angewandte Chemie, EarlyView.
Bei vielen Pd‐katalysierten Kreuzkupplungen hat sich gezeigt, dass die Katalysatorleistung durch dessen Aktivierung begrenzt wird. Methylnaphthyl (MeNAP)‐Palladiumtrifluoracetat‐Dimere werden als leicht zu lagernde und handhabende Präkatalysatoren vorgestellt, die sich unter Reaktionsbedingungen schnell aktivieren, selbst wenn nur schwach ...
Sourav Manna, Henric F. Janning, Nikolaos V. Tzouras, Jane Anto Simplica Sagayaraj, Fadil Faizal Mannighayil, Angelino Doppiu, Lukas J. Gooßen   +6 more
wiley   +1 more source

Eine Interphase mit ortsfesten Ladungen synchronisiert den Ionentransport und unterdrückt raumladungsgetriebene Ineffizienz unter räumlicher Begrenzung auf Nanoliter‐Volumina

Angewandte Chemie, EarlyView.
Die elektrochemische Energiespeicherung stößt bei extremer Miniaturisierung an fundamentale Grenzen, da Grenzflächen‐ und Raumladungseffekte dominieren. Hier stellen wir eine selektive Interphase mit ortsfesten Ladungen in einer Zwillingsrohr‐μ‐Swiss‐Roll‐Architektur vor.
Yaping Yan, Jiachen Ma, Wenlan Zhang, Hongmei Tang, Yue Li, Ruhuai Mei, Yang Huang, Daniil Karnaushenko, Dmitriy D. Karnaushenko, Yumin Luo, Kai Zhang, Oliver G. Schmidt, Minshen Zhu   +12 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

OTFS-IM-Assisted Non-Terrestrial Networks Relying on Autoencoder-Aided Soft-Decision Detection

IEEE Open Journal of Vehicular Technology
Orthogonal Time Frequency Space (OTFS) modulation offers significant advantages over Orthogonal Frequency Division Multiplexing (OFDM), particularly in high speed environments.
Xinyu Feng, Chao Zhang, Mohammed EL-Hajjar, Chao Xu, Lajos Hanzo   +4 more
doaj   +1 more source

The Orthogonal Time Frequency Space (OTFS) Technique In 6G Wireless Communications [PDF]

BIO Web of Conferences
The orthogonal time-frequency space (OTFS) technique is a potential waveform modulation method that modulates data in the delaydoppler (DD) domain. OTFS differs from traditional multiplexing techniques by utilizing two-dimensional modulation to switch ...
Ramadhan Ali J., TaeiZadeh Ali
doaj   +1 more source

Designing a Double Filter-Encircled Wrappers Feature Selection Algorithm for Transient Stability Prediction Based on Transient Time Series Data

IEEE Access
Integrating the feature selection process into machine learning-based transient analysis (MLTA) is essential for ensuring precise and timely transient stability prediction (TSP).
Seyed Alireza Bashiri Mosavi, Omid Khalaf Beigi   +1 more
doaj   +1 more source

Ein Ruthenium‐(Ph‐BPE) Katalysator für die asymmetrische Alkinylierung von Fluoral: Enantioselektion aus einem von 12 fluxionalen Komplexen mit rutheniumzentrierter Stereogenität

Angewandte Chemie, EarlyView.
Dies beschreibt die ersten enantioselektiven Alkinylierungen wässrigen Fluorals. Diese Prozesse werden durch einen Iodid‐gebundenen Ruthenium‐(Ph‐BPE)‐Komplex katalysiert, welcher als oktaedrischer Metallkomplex in 12 verschiedenen stereoisomeren Formen vorliegen kann.
Weijia Shen, Sebastian Höthker, Colin E. Hayter, Nicholas K. Bowers, Andrea Pellegrini, Stefan Grimme, Michael J. Krische   +6 more
wiley   +1 more source