Results 41 to 50 of about 5,755 (223)
Universal optical code division multiple access (O-CDMA) encoders/decoders
SPIE Proceedings, 2003 The ideal fiber-optic O-CDMA encoder/decoder technology should be able to simultaneously (a) select the desiredoptical bandwidth, i.e., the wavelength range of the coded signaling channel, e.g., 1500 nm to 1600 nm, to optimizeefficient use of spectrum and power to match network load needs, (b) select the spectral location and number ...
openaire +2 more sources
MIMO Assisted Space-Code-Division Multiple-Access: Linear Detectors and Performance over Multipath Fading Channels [PDF]
, 2006 In this contribution we propose and investigate a multiple-input multiple-output space-division, code-division multiple-access (MIMO SCDMA) scheme. The main objective is to improve the capacity of the existing DS-CDMA systems, for example, for supporting
Yang, L.-L.
core
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
Journal of Engineering and Sustainable Development, 2008 Code Division Multiple Access (CDMA) suffers from multi-user interference (MUI), and intersymbol interference (ISI) under frequency selective multi-path fading channels. Orthogonal Frequency Division Multiple access (OFDM) is MUI free but achieves lower
Maha George Zia, Harith Akram Nassir
doaj
EXIT chart aided design of DS-CDMA UltraWideBand systems using Iterative decoding [PDF]
, 2008 This paper presents a novel ultrawideband (UWB), direct sequence code division multiple access (DS-CDMA) aided system designed for the IEEE 802.15.3a UWB channel specifications.
M. El-Hajjar +11 more
core +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
Joint-Detection and Interference Cancellation Based Burst-by-Burst Adaptive CDMA Schemes [PDF]
, 2002 Spread adaptive quadrature amplitude modulated (AQAM) code-division multiple access (CDMA) is proposed as a powerful means of exploiting the time-variant channel capacity fluctuations of wireless channels.
Ng, S.X., Kuan, E.L., Hanzo, L.
core
Phase encoding and decoding of short pulses at 10Gb/s using superstructured fiber Bragg gratings [PDF]
, 2001 A 7-chip, 160-Gchip/s phase-shift keyed code is assigned to short pulses after reflection from a superstructured fiber Bragg grating. The code is then recognized by a second grating, which is nominally identical to the encoder grating.
Teh, P.C. +3 more
core +1 more source
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
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