Results 31 to 40 of about 1,077 (174)
Advanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley +1 more source
Multi-code Multicarrier CDMA: Performance Analysis
Journal of Communications Software and Systems, 2006 A new multi-code multicarrier code division multiple access (MC-MC-CDMA) system is proposed and analyzed in afrequency selective fading channel. By allowing each user to transmit an M-ary code sequence, the proposed MC-MC-CDMA system can support various ...
Taeyoon Kim +3 more
doaj
Design of a Baseband Transceiver for Multicarrier CDMA Communications
EURASIP Journal on Advances in Signal Processing, 2005 Multicarrier systems have become popular for their spectral efficiency and robustness against frequency-selective fading. Multicarrier code-division multiple access (MC-CDMA) is a technique that combines the advantage of multicarrier modulation with ...
Tsai Pei-Yun +2 more
doaj +1 more source
Prediction of Central Post‐Stroke Pain by Quantitative Sensory Testing
Annals of Neurology, Volume 97, Issue 3, Page 507-520, March 2025.Objective Among patients with acute stroke, we aimed to identify those who will later develop central post‐stroke pain (CPSP) versus those who will not (non‐pain sensory stroke [NPSS]) by assessing potential differences in somatosensory profile patterns and evaluating their potential as predictors of CPSP. Methods In a prospective longitudinal study on
Susanna Asseyer +9 more
wiley +1 more source
Decision-aided-based multiple blind PN code estimation algorithm of asynchronous CDMA signal
Tongxin xuebao, 2020 Aiming at the problem of blind estimation of multi-user pseudo-code of multi-path asynchronous code division multiple access (CDMA) signal,using the finite element (FA) characteristic of transmitted symbol,a decision aid (DA) method based on maximum ...
Zhaoyang QIU, Tianyun LI, Xiangming CHEN
doaj +2 more sources
Spreading Code Assignment Strategies for MIMO-CDMA Systems Operating in Frequency-Selective Channels
EURASIP Journal on Wireless Communications and Networking, 2009 Code Division Multiple Access (CDMA) and multiple input multiple output- (MIMO-) CDMA systems suffer from multiple access interference (MAI) which limits the spectral efficiency of these systems.
Claude D'Amours +1 more
doaj +2 more sources
Energy‐Aware Protocol Design and Evaluation of the PHY Layer in Satellite IoT
International Journal of Satellite Communications and Networking, Volume 43, Issue 2, Page 61-76, March/April 2025.ABSTRACT Direct‐to‐satellite communication for the Internet of Things (IoT) has attracted significant interest from both the scientific community and major telecommunications players. The integration of satellite connectivity in smartphones and IoT devices promises a transformative impact on critical applications such as environmental monitoring, asset
Simon Heine +2 more
wiley +1 more source
Contribution to Synchronization and Tracking Modelisation in a CDMA Receiver
Journal of Engineering, 2013 We propose and analyze a noncoherent receiver with PN code tracking for direct sequence code division multiple access (DS-CDMA) communication systems. We employ the delay-lock loop (DLL) architectures for the tracking stage.
Aicha Alami Hassani +2 more
doaj +1 more source
Impact of Ionospheric Scintillations on GNSS Availability and Precise Positioning
Space Weather, Volume 23, Issue 2, February 2025.Abstract For many applications where accuracy, availability, and integrity are essential, such as geodetic positioning and civil aviation, Global Navigation Satellite Systems (GNSS) are indispensable. However, GNSS signal dependability is severely hampered by ionospheric disturbances, especially equatorial plasma bubbles (EPBs), particularly in ...
C. R. Aguiar +2 more
wiley +1 more source
General Signal Model for Multiple-Input Multiple-Output GMTI Radar
Sensors, 2018 Multiple-input multiple-output (MIMO) ground moving target indication (GMTI) radar has been studied recently because of its excellent performance. In this paper, a general signal model is established for the MIMO GMTI radar with both fast-time and slow ...
Fuyou Li +4 more
doaj +1 more source