Results 101 to 110 of about 9,770 (211)

The spo0A-sinI-sinR Regulatory Circuit Plays an Essential Role in Biofilm Formation, Nematicidal Activities, and Plant Protection in Bacillus cereus AR156

Molecular Plant-Microbe Interactions, 2017
The rhizosphere bacterium Bacillus cereus AR156 is capable of forming biofilms, killing nematodes, and protecting plants. However, the underlying molecular mechanisms of these processes are not well understood.
Sunde Xu, Nan Yang, Shiyu Zheng, Fang Yan, Chunhao Jiang, Yiyang Yu, Jianhua Guo, Yunrong Chai, Yun Chen   +8 more
doaj   +1 more source

Robust Beamforming via Worst-Case SINR

, 2008
Minimum variance beamforming, which uses a weight vector that maximizes the signal to interference plus noise ratio (SINR), is often sensitive to estimation error and uncertainty in the parameters, steering vector, and covariance matrix.
Ro Magnani Almir Mutapcic, Seung-jean Kim Aless   +1 more
core  

SINR estimation for UMTS-FDD downlink

, 2009
Dans cet article, nous proposons au niveau du terminal mobile une procédure d'estimation de la qualité du lien descendant en terme de SINR dans le contexte de l'UMTS-FDD.
LOUBATON, Philippe, FATHI, Lahouari
core  

Comparison of beamforming algorithms via worst-case SINR maximization

, 2016
In communication systems with interference, the performance of traditional adaptive beamforming to search the direction of angle (DOA) of incoming desired signal degrades because of mismatch between the true array response and the assumed array response ...
Joohwan Chun, Suh, Jinbae, Chun, Joohwan, Jinbae Suh   +3 more
core   +1 more source

Reliable relay assisted communications for IoT based fall detection

Scientific Reports
Robust wireless communication using relaying system and Non-Orthogonal Multiple Access (NOMA) will be extensively used for future IoT applications. In this paper, we consider a fall detection IoT application in which elderly patients are equipped with ...
Khulud K. Alharbi, Sajid H. Alvi, Bakhtiar Ali, Jawad Mirza, Muhammad Awais Javed, Hatem A. Alharbi   +5 more
doaj   +1 more source

Random Matrix Theory Predictions of Dominant Mode Rejection SINR Loss due to Signal in the Training Data

IEEE Open Journal of Signal Processing
Detection and estimation performance depends on signal-to-interference-plus-noise ratio (SINR) at the output of an array. The Capon beamformer (BF) designed with ensemble statistics achieves the optimum SINR in stationary environments.
Christopher C. Hulbert, Kathleen E. Wage
doaj   +1 more source

An optimal calibration factor for mutual information effective SINR mapping scheme in 5G NR

Electronics Letters
In this letter, an optimal calibration factor for mutual information effective signal‐to‐interference‐plus‐noise ratio (SINR) mapping (MIESM) scheme in fifth‐generation new radio (5G NR) is provided.
Hyeongseok Kim, Kwon Seol, Jeongchang Kim   +2 more
doaj   +1 more source

The effect of phosphate deficiency on quorum sensing signaling pathway of Sinorhizobium meliloti

Biological Journal of Microorganism, 2015
Introduction : Phosphorus is one of the most essential macroelements for bacterial cells. Since phosphate (PO4-3) limitation is frequently encountered in soils, bacteria developed some mechanisms in response to this sever condition. Phosphate transporter
Najmeh Pakdaman, akbar mostajeran
doaj  

Signal-to-Interference-Noise-Ratio Density Distribution for UAV-Carried IRS-to-6G Ground Communication

IEEE Access
This paper investigates the probability distribution of the signal-to-interference noise ratio (SINR) for a 6G communication system comprising a multi-antenna transmitter, an intelligent reflecting surface (IRS) and a remote receiver station.
Christantus Obinna Nnamani, Chidera Linda Anioke, Saba Al-Rubaye, Antonios Tsourdos   +3 more
doaj   +1 more source

A Local Broadcast Layer for the SINR Network Model

, 2015
We present the first algorithm that implements an abstract MAC (absMAC) layer in the Signal-to-Interference-plus-Noise-Ratio (SINR) wireless network model.
Holzer, Stephan Sebastian, Magnus M. Halldórsson, Nancy Lynch, Lynch, Nancy Ann, Stephan Holzer, Halldorsson, Magnus M.   +5 more
core   +1 more source