Results 61 to 70 of about 50,659 (251)

Layered Orthogonal Frequency Division Multiplexing With Index Modulation [PDF]

IEEE Systems Journal, 2019
In this paper, we propose a novel scheme termed layered orthogonal frequency division multiplexing with index modulation (L-OFDM-IM) to increase the spectral efficiency (SE) of OFDM-IM systems. In L-OFDM-IM, all subcarriers are first divided into multiple layers, each determining the active subcarriers and their modulated symbols. The index modulation (
Jun Li 0036, Shuping Dang, Miaowen Wen, Xue-Qin Jiang 0001, Yuyang Peng, Han Hai   +5 more
openaire   +2 more sources

DNA Nanoarray for Multiplexed RNA Detection With Single‐Molecule Readout

Advanced Science, EarlyView.
A carrier‐based DNA nanoarray integrates programmable nucleic acid hybridization with solid‐state nanopore readout for direct RNA detection at single‐molecule resolution. A ternary encoding system enables 27 carriers with 81 addressable sensing sites, allowing the simultaneous identification of targets spanning a wide size range, from short microRNAs ...
Yunxuan Li, Yesheng Wang, Chunmiao Yu, Siyu Hou, Elli Mylona, Plamena Naydenova, Jingyuan Zhao, Hong Yuan, Jingsong Duan, Hendrik F. P. Runge, Stephen Baker, Jinbo Zhu, Ulrich F. Keyser   +12 more
wiley   +1 more source

An evaluation of the performance of IEEE 802.11a and 802.11g wireless local area networks in a corporate office environment [PDF]

, 2003
In recent years there has been considerable interest in the development of standards for wireless local area networks. In particular, IEEE's 802.11a and 802.11g both employ coded orthogonal frequency division multiplexing (COFDM) but operate in different
Armour, SMD, Bull, DR, Doufexi, A, Lee, BS, Nix, AR   +4 more
core   +2 more sources

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

Advanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang, Zhen‐Hui Qin, Yi‐Han He, Yun‐Fei Cheng, Hao Yan, Si‐Yuan Yu, Ming‐Hui Lu, Yan‐Feng Chen   +7 more
wiley   +1 more source

RATEX: A Scalable RNA‐Based Platform for Logical and Multi‐Layered Cellular Programming

Angewandte Chemie, EarlyView.
RATEX integrated ribosome‐mediated transcription control with synthetic RNA regulators, enabling simultaneous processing of RNA, metabolite, and small‐molecule inputs through complex logic operations within a single transcript. The platform achieves up to 1,492‐fold gene regulation, multi‐input hybrid logic gates, RNA‐programmed signaling cascades, and
Hyunseop Goh, Hansol Kang, Chaeri Kim, Jongmin Kim   +3 more
wiley   +2 more sources

Orthogonal Chirp Division Multiplexing for Underwater Acoustic Communication

Sensors, 2018
The objective of this study is to investigate a novel Underwater Acoustic Communication (UWAC) system based on a modulated chirp signal termed as Orthogonal Chirp Division Multiplexing (OCDM).
Yiqi Bai, Pierre-Jean Bouvet
doaj   +1 more source

Enhanced Orthogonal Frequency-Division Multiplexing With Subcarrier Number Modulation [PDF]

IEEE Internet of Things Journal, 2019
A novel modulation scheme termed orthogonal frequency-division multiplexing with subcarrier number modulation (OFDM-SNM) has been proposed and regarded as one of the promising candidate modulation schemes for next generation networks. Although OFDM-SNM is capable of having a higher spectral efficiency (SE) than OFDM with index modulation (OFDM-IM) and ...
Shuping Dang, Guoqing Ma 0002, Basem Shihada, Mohamed-Slim Alouini   +3 more
openaire   +3 more sources

Natural Resistance to Ovarian Hyperstimulation Syndrome in Estrildid Finches Reveals Macrophage GPR183 as a Potential Therapeutic Target

Advanced Science, EarlyView.
Ovarian macrophage depletion reverses OHSS resistance in estrildid finches and exacerbates OHSS symptoms in rats. Activating macrophage GPR183 alleviates OHSS by reducing pro‐inflammatory factors, increasing immunomodulatory molecules, remodeling CD44/SDC4‐mediated communication, and restoring immune homeostasis.
Xiaofei Yan, Yongjie Huang, Jiabao Yang, Su Ma, Songsong Liu, Xuan Huang, Juergen Brosius, Huaping Zheng, Bing Yao, Li Chen, Shanshan Lai, Cheng Deng   +11 more
wiley   +1 more source

Modelling the satellite communication links with orthogonal frequency-division multiplexing

Transport, 2016
Global technologies of data transmission in real time are developing constantly. Therefore, modelling of messages transmission through satellite constellations is an actual problem.
Volodymir Kharchenko, Bo Wang, Andrii Grekhov, Anna Leschenko   +3 more
doaj   +1 more source

Decoding Spatial Heterogeneity and Multi‐Omics Regulation with Hierarchical Graph Learning

Advanced Science, EarlyView.
ABSTRACT Recent advances in spatial multi‐omics technologies have enabled the simultaneous profiling of multiple molecular layers within the same tissue slice, providing unprecedented opportunities to investigate tissue spatial organization. However, most existing computational methods identify spatial domains in a purely data‐driven manner, rarely ...
Jiazhou Chen, Jiahui Xie, Yi Liao, Junyu Li, Longqi Liu, Xin Gao, Hongmin Cai   +6 more
wiley   +1 more source