Results 91 to 100 of about 145,380 (224)
Acta Ophthalmologica, Volume 104, Issue 7, Page 750-759, November 2026.Abstract Purpose To measure the progression of geographic atrophy (GA) in subjects with age‐related macular degeneration (AMD) in a natural history study. Methods We analysed fundus autofluorescence (FAF) images using a semiautomatic method (RegionFinder) to quantify the GA area in a monocentric study.
Philippe Valmaggia +17 more
wiley +1 more source
Promet (Zagreb), 2017 This paper considers some of the barriers in implementing the RFID (radio frequency identification) technology for identifying, locating, tracking and tracing goods in supply chains, along with a model for adopting cloud services that can mitigate these ...
Sanja Bauk +2 more
doaj +1 more source
Delayed adaptive antenna subset selection in measured wireless MIMO channels [PDF]
, 2005 Adaptive antenna subset selection can improve the expected theoretical capacity of a multiple-input, multiple-output (MIMO) wireless channel, whilst maintaining the tractable complexity of the lower order MIMO system.
Murray, B, Beach, MA
core
Unified MIMO-multicarrier designs: a space–time shift keying approach [PDF]
, 2015 A survey and tutorial is provided on the subject of multiple-input multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying concept.
Sugiura, Shinya +3 more
core +1 more source
Digital signal processing in MIMO radars with time-multiplexed transmit signals
Vojnotehnički GlasnikIntroduction/purpose: A current topic of significant research and development efforts in the Held of radar systems is MIMO (Multiple-Input-Multiple-Output) radar technology.
Borko В. Đaković +3 more
doaj +1 more source
Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2017 Nowadays thewireless world demands to get high quality of service, wireless communicationhas been developed by time from using a single antenna at a transmitter and asingle antenna (SISO) at a destination to use multiple antennas at atransmitter and ...
Kerem Küçük +2 more
doaj
Modulation-mode and power-assignment for SVD-and GMD-assisted downlink MIMO systems [PDF]
, 2010 Multiuser multiple-input multiple-output (MIMO) downlink (DL) transmission schemes experience both multiuser interference (MUI) as well as inter-antenna interference.
Ahrens, Andreas +2 more
core
Two-tier channel estimation aided near-capacity MIMO transceivers relying on norm-based joint transmit and receive antenna selection [PDF]
, 2015 We propose a norm-based joint transmit and receive antenna selection (NBJTRAS) aided near-capacity multiple-input multiple-output (MIMO) system relying on the assistance of a novel two-tier channel estimation scheme. Specifically, a rough estimate of the
Chen, Sheng +2 more
core +1 more source
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
, 2007 This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M +3 more
core +2 more sources
Bit Error Rate Closed-Form Expressions for LoRa Systems under Nakagami and Rice Fading Channels
Sensors, 2019 We derive exact closed-form expressions for Long Range (LoRa) bit error probability and diversity order for channels subject to Nakagami-m, Rayleigh and Rician fading.
Claudio Ferreira Dias +2 more
doaj +1 more source