Results 21 to 30 of about 3,099,457 (245)
Improving Decoupled Spherical Harmonics ESPRIT Using Structured Least Squares
IEEE Access, 2018 Spherical arrays have been widely used in direction-of-arrival estimation in recent years, and most algorithms in the spherical harmonics domain typically simultaneously obtain the 2-D angles. In this paper, we first use the structured least squares (SLS)
Qinghua Huang, Lin Zhang, Yong Fang
doaj +1 more source
Flexible and Printed Microwave Plasmonic Sensor for Noninvasive Measurement
IEEE Access, 2020 The printed electrodes for detecting direct current signal changes of human vital signs have been fully investigated. Here a flexible and printed microwave plasmonic sensor for detecting liquid solutions is proposed and demonstrated.
Li Hui Dai +3 more
doaj +1 more source
Asynchronous Two-Way Relaying Networks Using Distributed Differential Space-Time Coding
International Journal of Antennas and Propagation, 2015 A signal detection scheme is proposed for two-way relaying network (TWRN) using distributed differential space-time coding (DDSTC) under imperfect synchronization.
Minjie Qian +3 more
doaj +1 more source
A Fiber-Optic Sensor for Acoustic Emission Detection in a High Voltage Cable System
Sensors, 2016 We have proposed and demonstrated a Michelson interferometer-based fiber sensor for detecting acoustic emission generated from the partial discharge (PD) of the accessories of a high-voltage cable system.
Tongzhi Zhang +7 more
doaj +1 more source
Optimality of Orthogonal Access for One-dimensional Convex Cellular Networks [PDF]
, 2013 It is shown that a greedy orthogonal access scheme achieves the sum degrees of freedom of all one-dimensional (all nodes placed along a straight line) convex cellular networks (where cells are convex regions) when no channel knowledge is available at the
Jafar, Syed A., Maleki, Hamed
core +1 more source
A heuristic tool for exposure reduction in indoor wireless networks [PDF]
, 2012 A heuristic indoor network planner for exposure calculation and optimization in wireless networks is developed. The model for the electric-field strength in the vicinity of an access point is presented and the WiFi networks are optimized in order not to ...
Joseph, Wout +3 more
core +1 more source
The Low-Loss Spot Size Converter for Alignment with Cleaved Single Mode Fiber
Applied Sciences, 2023 Integrating the graded index (GRIN) waveguide with the 2-D inversely-tapered waveguide, a new design of spot size converter (SSC) has been proposed to couple the light beam between the cleaved single-mode fiber (SMF) and the silicon (Si) wire waveguide ...
Jinyang Zhao +4 more
doaj +1 more source
A Survey of Access Control Models in Wireless Sensor Networks [PDF]
, 2014 Copyright 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/)Wireless sensor ...
Christianson, B. +3 more
core +2 more sources
, 2015 Dramatic data traffic growth, especially wireless data, is driving a significant surge in energy consumption in the last mile access of the telecommunications infrastructure.
Ansari, Nirwan, Han, Tao, Taheri, Mina
core +1 more source
IEEE Photonics JournalOn carrierless phase retrieval (PR) receivers based on direct detection, bandwidth limitation of electrical-to-optical (E/O) conversion at the transmitter side (Tx) distorts the modulated optical signal.
Qi Gao +5 more
doaj +1 more source