Results 41 to 50 of about 45,671 (180)
Event-Driven Optimal Feedback Control for Multi-Antenna Beamforming
, 2009 Transmit beamforming is a simple multi-antenna technique for increasing throughput and the transmission range of a wireless communication system. The required feedback of channel state information (CSI) can potentially result in excessive overhead ...
Huang, Kaibin +2 more
core +2 more sources
Energies, 2018 In this paper, we consider partial path selection (PPS) for a multi-hop decode-and-forward cooperative system with limited channel state information (CSI) feedback, where the PPS utilizes local CSI only for a subset of hops on each of all independent ...
In-Ho Lee, Haejoon Jung
doaj +1 more source
, 2013 Multi-user multi-input-multi-output (MU-MIMO) systems transmit data to multiple users simultaneously using the spatial degrees of freedom with user feedback channel state information (CSI).
Chen, Junting, Lau, Vincent K. N.
core +2 more sources
Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space
Advanced Materials, EarlyView.In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz +17 more
wiley +1 more source
Non-cooperative Feedback Rate Control Game for Channel State Information in Wireless Networks
, 2011 It has been well recognized that channel state information (CSI) feedback is of great importance for dowlink transmissions of closed-loop wireless networks.
Han, Zhu +3 more
core +1 more source
IET Communications, 2022 This work studies the precoding methods for the reduced cycle‐prefix (CP) orthogonal time frequency space (OTFS) modulation to simplify the receiver design.
Yuan Zhang, Peng Du, Jiang Wang
doaj +1 more source
Advanced Robotics Research, EarlyView.Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang +5 more
wiley +1 more source
Cooperative Feedback for MIMO Interference Channels
, 2010 Multi-antenna precoding effectively mitigates the interference in wireless networks. However, the precoding efficiency can be significantly degraded by the overhead due to the required feedback of channel state information (CSI).
Huang, Kaibin, Zhang, Rui
core +1 more source
FDD Massive MIMO Without CSI Feedback
IEEE Transactions on Wireless CommunicationsTransmitter channel state information (CSIT) is indispensable for the spectral efficiency gains offered by massive multiple-input multiple-output (MIMO) systems. In a frequency-division-duplexing (FDD) massive MIMO system, CSIT is typically acquired through downlink channel estimation and user feedback, but as the number of antennas increases, the ...
Deokhwan Han, Jeonghun Park, Namyoon Lee
openaire +2 more sources
Sphingomonas paucimobilis‐Driven Epithelial–Endothelial Transition in Adenomyosis Pathogenesis
Advanced Science, EarlyView.This study identifies epithelial–endothelial transition (EET) as a novel adenomyosis pathogenic mechanism driven by Sphingomonas paucimobilis colonization. Systematic inhibitor experiments validate a TNFα→NF‐κB→MMP signaling cascade essential for EET. Critically, bacterial culture supernatant fails to induce pathological changes, demonstrating viable ...
Peigen Chen +7 more
wiley +1 more source