Results 51 to 60 of about 4,344 (249)

Equalization Techniques based on Cyclic Prefix in Space Division Multiplexing Systems

Guangtongxin yanjiu
【Objective】In Space Division Multiplexing (SDM) system, in order to achieve mode demultiplexing, it is necessary to adopt Multiple Input Multiple Output (MIMO) equalization scheme at the receiving end.
WANG Liuzhu, ZHENG Zhilong, XUE Yuling, HU Shaohua, ZHANG Jing, QIU Kun   +5 more
doaj  

Efficient Frequency-Domain Block Equalization for Mode-Division Multiplexing Systems

Photonics
In this paper, an adaptive frequency-domain block equalizer (FDBE) implementing the adaptive moment estimation (Adam) algorithm is proposed for mode-division multiplexing (MDM) optical fiber communication systems. By packing all frequency components into
Yifan Shen, Jianyong Zhang, Shuchao Mi, Guofang Fan, Muguang Wang   +4 more
doaj   +1 more source

Reduced Complexity Detection in MIMO Systems with SC-FDE Modulations and Iterative DFE Receivers

Journal of Sensor and Actuator Networks, 2018
This paper considers a Multiple-Input Multiple-Output (MIMO) system with P transmitting and R receiving antennas and different overall noise characteristics on the different receiver antennas (e.g., due to nonlinear effects at the receiver side).
Filipe Casal Ribeiro, João Guerreiro, Rui Dinis, Francisco Cercas, Adão Silva   +4 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, EarlyView.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

Contrasting roles of school and public libraries in lower primary pupils' reading

British Educational Research Journal, EarlyView.
Abstract Libraries represent an important institutional component of children's reading socialisation, yet their role is often treated as uniform despite substantial differences between school and public libraries. This study examines how visits to school and public libraries relate to pupils' reading attitudes, practices and self‐assessed reading ...
Kateřina Balcarová, Jiří Balcar
wiley   +1 more source

Reframing the Architecture of Climate‐Related Knowledge: Beyond Disclosure, Toward Strategic Translation

Business Strategy and the Environment, EarlyView.
ABSTRACT Climate change has generated an unprecedented expansion of disclosure frameworks, metrics, and governance instruments intended to inform corporate strategy. Yet firms continue to differ markedly in how climate‐related knowledge is interpreted, prioritized, and embedded in decision‐making. This paper addresses this paradox by shifting attention
Giuseppe Modaffari, Pedro Seva‐Larrosa, Francisco García‐Lillo   +2 more
wiley   +1 more source

Underwater Acoustic Rapidly Time-Varying Channel Equalization Technique Integrating Deep Learning and Domain Knowledge

水下无人系统学报
Multicarrier communication schemes, such as orthogonal frequency division multiplexing(OFDM), are the mainstream solutions for achieving high spectral efficiency in underwater acoustic transmissions.
Ke DENG, Shuaijun WANG, Hua YU, Jian ZHANG, Junfan CHEN, Zhouping WU   +5 more
doaj   +1 more source

Regenerative perfusion bioreactor for biologics production with lower COGs

Biotechnology Progress, EarlyView.
Abstract Perfusion bioreactor systems enable intensified bioprocessing with high cell densities and volumetric productivities in monoclonal antibody (mAb) manufacturing. However, their widespread adoption remains constrained by the high consumption of chemically defined cell culture media.
Eric Wynne, Dohyun Park, Hourieh Ahi, Jaeweon Lee, Seongkyu Yoon, Jongyoon Han   +5 more
wiley   +1 more source

GPU-Enabled Adaptive Frequency Domain Equalization for Fully Virtualized Coherent Access Networks

IEEE Access
In recent years, access and metro networks have been transitioning toward architectures based on disaggregation and virtualization, where software-based implementation of physical-layer signal processing on general-purpose computing platforms has become ...
Akio Yamasaki, Takahiro Suzuki, Sang-Yuep Kim, Jun-Ichi Kani, Tatsuya Shimada, Daisuke Hisano   +5 more
doaj   +1 more source

Moving Beyond 99.9% Coulombic Efficiency for Anode‐Free Sodium Metal Battery

Carbon Energy, EarlyView.
Iron‐anchored carbon nanotubes (CNT‐Fe) are developed as a 3D sodiophilic host for anode‐free sodium metal batteries. The Fe nanoparticles significantly enhance sodium adsorption and ensure uniform deposition, enabling an exceptional 99.9% Coulombic efficiency over 1100 cycles and long‐term stability in high‐loading full cells.
Pan Liu, Minjie Hou, Kun Ren, Fupeng Li, Haoran Wang, Shizhao Xiong, Yingjie Zhou, Kaizhao Wang, Song Chen, Bin Yang, Feng Liang   +10 more
wiley   +1 more source