Shifts of attention in the early blind: an ERP study of attentional control processes in the absence of visual spatial information [PDF]
, 2006 To investigate the role of visual spatial information in the control of spatial attention, event-related brain potentials (ERPs) were recorded during a tactile attention task for a group of totally blind participants who were either congenitally blind or
van Velzen, J. +7 more
core +1 more source
A Partial Amplify and Forward Cooperative Communication Strategy Based on Blind Signal Detection
IEEE Access, 2020 Due to the great potential in extending propagation distance and enhancing the link reliability, amplify and forward (AF) cooperative communications have attracted much attention recently.
Chang Li +5 more
doaj +1 more source
Progress on AlGaN-based solar-blind ultraviolet photodetectors and focal plane arrays
Light: Science & Applications, 2021 Solar-blind ultraviolet (UV) photodetectors (PDs) have attracted tremendous attention in the environmental, industrial, military, and biological fields. As a representative III-nitride material, AlGaN alloys have broad development prospects in the field ...
Qing Cai +9 more
doaj +1 more source
Semi-blind sparse image reconstruction with application to MRFM [PDF]
, 2012 We propose a solution to the image deconvolution problem where the convolution kernel or point spread function (PSF) is assumed to be only partially known.
Hero, Alfred O. +2 more
core +1 more source
Blind Detection of Underwater Acoustic Communication Signals Based on Deep Learning
IEEE Access, 2020 Blind detection of underwater acoustic communication (UWAC) signals is challenging in non-cooperative reception scenarios. Difficulties include but not limited to complex underwater acoustic channels, diversity of signal categories, and data scarcity. To
Yongbin Li +4 more
doaj +1 more source
Blind Multiuser Detection with Array Observations
Wireless Personal Communications, 1998 Cochannel interference is usually a major limitation to the performance of mobile wireless systems. Examples of different forms of cochannel interference include multi-access interference in CDMA systems and cochannel interference resulting from frequency reuse in TDMA systems.
Rodríguez Fonollosa, Javier +3 more
openaire +3 more sources
A Blind Synchronous Multi-User DS-CDMA Equaliser With Partial Loading [PDF]
, 2004 In this paper, we propose a blind multiuser detection scheme in a direct sequence CDMA downlink scenario by means of a chip-level equaliser, which can be updated even if not all possible users are active, i.e. the system is partially loaded.
S. Weiss +5 more
core +1 more source
Semi-blind adaptive beamforming for high-throughput quadrature amplitude modulation systems [PDF]
, 2010 A semi-blind adaptive beamforming scheme is proposed for wireless systems that employ high-throughput quadrature amplitude modulation signalling. A minimum number of training symbols, equal to the number of receiver antenna arrays elements, are first ...
Sheng Chen +5 more
core +1 more source
Index Modulation-Aided Unsourced Random Access in the Block-Fading Channel
IEEE Open Journal of the Communications SocietyIn this article, we propose three index modulation (IM) aided unsourced random access schemes in the block-fading multiple-antenna channel. In all the proposed schemes, the signal frame is partitioned into multiple time slots, and only part of time slots
Yaoxin Gao, Jianping Zheng
doaj +1 more source
PAPR Reduction for Visible Light Communication Systems Without Side Information
IEEE Photonics Journal, 2017 It is well known that visible light communication (VLC) systems with the direct current-biased optical orthogonal frequency division multiplexing (DCO-OFDM) scheme suffers from high peak-to-average power ratio (PAPR), which leads to serve distortion and ...
Wei-Wen Hu, Da-Huei Lee
doaj +1 more source