Results 71 to 80 of about 30,188 (287)

Power Allocation in an Uplink Sparse Code Multiple Access with Target Bit Error Rates [PDF]

, 2023
Bilal Ghani, Frédéric Launay, Clency Perrine, Léo Mendiboure, Romain Dulout, Yannis Pousset   +5 more
openalex   +1 more source

Cancer Cells Traverse Faster in Confined Space by Modifying Vimentin filaments With Nuclear Deformation and Promoting the Growth of Desired Tumor Spheroids

Advanced Materials Interfaces, EarlyView.
This study demonstrates how the Vimentin intermediate (VIM) filaments distribution/density regulates the attainment of different migration modes through cytoskeleton rearrangement and controls the nuclear morphology in migrating cells under physical confinement, which facilitates the faster traversing of those cells and the growth of post‐migration ...
Md Kowsar Alam, Jiao Zhai, Heng Zou, Yu Chen, Michael Yang   +4 more
wiley   +1 more source

Impact of Factor Graph on Average Sum Rate for Uplink Sparse Code Multiple Access Systems

IEEE Access, 2016
In this paper, we first study the average sum rate of sparse code multiple access (SCMA) systems, where a general scenario is considered under the assumption that the distances between the mobile users and the base station are not necessarily identical ...
Zheng Yang, Jingjing Cui, Xianfu Lei, Zhiguo Ding, Pingzhi Fan, Dageng Chen   +5 more
doaj   +1 more source

Analyzing Uplink Grant-free Sparse Code Multiple Access System in Massive IoT Networks [PDF]

, 2021
Ke Lai, Jing Lei, Yansha Deng, Lei Wen, Gaojie Chen   +4 more
openalex   +1 more source

Mechanically Tunable Mechanochromic Device with Covert‐Overt Structural Color and Modulation of its Transparency

Advanced Materials Interfaces, EarlyView.
This study presents a novel mechanically responsive optical device that modulates light transmission and generates iridescent structural colors under reflection. The optical transition arises from the exposure of nanoparticles upon stretching, which are initially embedded beneath the surface.
Nguyen Hoang Minh, Kwanoh Kim, Do Hyun Kang, Yeong‐Eun Yoo, Jae Sung Yoon   +4 more
wiley   +1 more source

Variable-Length Sparse Feedback Codes for Point-to-Point, Multiple Access, and Random Access Channels

, 2021
Recep Can Yavas, Victoria Kostina, Michelle Effros   +2 more
openalex   +1 more source

Low Complexity Iterative Receiver Design for Sparse Code Multiple Access [PDF]

, 2020
Fan Wei, Wen Chen
openalex   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Channel Estimation in Uplink SCMA System

Известия высших учебных заведений России: Радиоэлектроника, 2016
The effect of channel estimation error on bit error probability of uncoded and coded sparse code multiple access (SCMA) system in uplink channel with block fading is considered.
A. B. Sergienko, V. P. Klimentjev
doaj  

Channel Estimation and Pilot Design for Uplink Sparse Code Multiple Access System Based on Complex-Valued Sparse Autoencoder

IEEE Access
Channel estimation is one of the most important aspects of wireless communication. Especially, in sparse code multiple access (SCMA) system, the accuracy of channel estimation has a significant impact on decoding performance.
Quan Yuan, Dezhi Li, Zhenyong Wang, Chang Liu, Ci He   +4 more
doaj   +1 more source