Results 91 to 100 of about 4,446,627 (280)

SFBC Recognition over Orthogonal Frequency Division Multiplexing Schemes in the Presence of Inphase and Quadrature Phase Discrepancies for Cognitive Radio Applications. [PDF]

Sensors (Basel), 2023
Marey M, Sedik A, Mostafa H.
europepmc   +1 more source

Thermal Shifts Dominate Single‐Gene Responses to Transcription‐Targeting Antibiotics

Advanced Science, EarlyView.
Thermal shifts reshape bacterial responses to transcription‐targeting antibiotics. In E. coli, temperature can dominate antibiotic‐induced genome‐wide expression, particularly outside 30°C–39°C, through changes in adenosine triphosphate (ATP), nucleoid organization, and drug‐target engagement.
Rahul Jagadeesan, Amir M. Arsh, Vatsala Chauhan, Suchintak Dash, Pooja Ravaria, Andre S. Ribeiro   +5 more
wiley   +1 more source

An Improved Orthogonal Frequency Division Multiplexing System-Based Image Steganography Technique

Tikrit Journal of Engineering Sciences
OFDM technology is one of the most promising digital modulation methods to achieve the highest data transmission rates in all communication systems. However, the CFO problem constitutes one of the obstacles in-building wireless communication systems, as
Ali Y. Jaber, Ammar Al-Khafaji, Ahmed Mahfodh Mkhelf   +2 more
doaj   +1 more source

Employing Hybrid sub-Nyquist Sampling Rates to Support Heterogeneous Services of Varying Capacity in 25-Gbps DDM-OFDM-PON

IEEE Photonics Journal, 2018
Delay-division-multiplexing (DDM) involves the use of signal preprocessing for the detection of data via sub-Nyquist analog-to-digital sampling, based on preallocated relative sampling delays among optical network users (ONUs) in an orthogonal frequency ...
Jhih-Hao Hsu, Min Yu, Chia-Chien Wei, Chi-Hsiang Lin, Chun-Ting Lin, Fumin Liu, Lei Zhou, LiMing Fang   +7 more
doaj   +1 more source

Transfer learning-based channel estimation in orthogonal frequency division multiplexing systems using data-nulling superimposed pilots. [PDF]

PLoS One, 2022
Qing C, Dong L, Wang L, Ling G, Wang J.
europepmc   +1 more source

Orthogonal frequency division multiplexing

, 2016
The contribution serves as a preview of the OFDM modulation signal, which is used in cellular and other wireless networks. We look closer on this problem and we are subsequently discussed general topics. That include an issue of mobile networks in their general concept and also more insight on the network 4 and 5 generations.
Šustek, Michal, Marcaník, Miroslav, Úředníček, Zdeněk   +2 more
openaire   +1 more source

Reducing Intercarrier Interference for Orthogonal Frequency Division Multiplexing

, 2010
Orthogonal frequency division multiplexing (OFDM) is very sensitive to the frequency offset that causes intercarrier interference (ICI). A multiple symbol encapsulated orthogonal frequency division multiplexing (MSE-OFDM) system with a self inter ...
Mian Chen, Jihyun Park, Wansong Zhang, Jong Rak Yoon, Chundan Lin   +4 more
core   +1 more source

AI‐Designed TREM1‐Targeted LYTAC Nanoparticles Reprogram the Neuroimmune Microenvironment in Traumatic Brain Injury

Advanced Science, EarlyView.
AI‐enabled de novo design of a TREM1 binder, integrated into a BBB‐crossing and macrophage‐targeted nanoplatform, enables TREM1 degradation and attenuates neuroinflammation, thereby promoting neuroprotection and tissue repair after traumatic brain injury. ABSTRACT Secondary neuroinflammation drives progressive damage after traumatic brain injury (TBI),
Yimin Huang, Yuan Liu, Huan Peng, Yu Ni, Zhengqiao Jiang, Chenxuan Yu, Xincheng Zhang, Huayu Kang, Yanchao Liu, Juan Chen, Kai Zhao, Lin Han, Xin Zou, Kai Shu, Xiaochuan Wang, Jian‐Zhi Wang, Ting Lei, Chao Gan, Jianfeng Liu, Huaqiu Zhang   +19 more
wiley   +1 more source

OTDM add-drop multiplexer based on time-frequency signal processing

, 2006
A time-division add-drop multiplexer capable of high-extinction-ratio operation is presented both theoretically and experimentally. The approach used is based on time-to-frequency domain conversion of optical signals and relies upon the switching of ...
Ibsen, M., Petropoulos, P., Parmigiani, F., Almeida, P.J., Richardson, D.J.   +4 more
core   +1 more source

Modified asymmetrically-clipped optical orthogonal frequency-division multiplexing system performance [PDF]

, 2013
Improvement in bit error rate performance of asymmetrically-clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) is achieved through proposed modification by using unipolar encoding.
Mohamed, Salma D., Shalaby, Hossam, Ivan Andonovic, Moustafa H. Aly, Aly, Moustafa H., Hossam Shalaby, Andonovic, Ivan, Salma D. Mohamed   +7 more
core   +1 more source