Results 31 to 40 of about 23,563 (255)

Identity‐Enabled CDMA LiDAR for Massively Parallel Ranging with a Single‐Element Receiver

Laser &Photonics Reviews, Volume 19, Issue 23, December 3, 2025.
A novel LiDAR system integrates CDMA modulation with a single‐element detector to achieve massive channel parallel 3D imaging. By using a user identification code and a correlation‐based feedback loop, it overcomes signal collisions and the near‐far problem.
Yixiu Shen, Zi Heng Lim, Guangya Zhou
wiley   +1 more source

CDMA Transmission with Complex OFDM/OQAM

EURASIP Journal on Wireless Communications and Networking, 2007
We propose an alternative to the well-known multicarrier code-division multiple access (MC-CDMA) technique for downlink transmission by replacing the conventional cyclic-prefix orthogonal frequency division multiplexing (OFDM) modulation by an advanced ...
Chrislin Lélé, Pierre Siohan, Rodolphe Legouable, Maurice Bellanger   +3 more
doaj   +1 more source

A Performance Analysis of a Hybrid OCDMA-PON Configuration Based on IM/DD Fast-OFDM Technique for Access Network

Applied Sciences, 2020
The purpose of this article is to propose a new configuration based on OCDMA and Fast-OFDM techniques for access network applications. A hybrid intensity modulation with direct detection, fast orthogonal frequency-division multiplexing–code division ...
Hichem Mrabet
doaj   +1 more source

Optimization of multiple access mode for large-scale constellation networking communication

Xibei Gongye Daxue Xuebao, 2023
In the large-scale satellite constellation technology, the establishment of satellite internal network is the top priority. As the network capacity of the constellation continues to expand and the number of satellite nodes continues to increase, the ...
GUO Xiaoxu, XU Zhaobin, XU Kedi, ZHU Yaowei, JIN Zhonghe   +4 more
doaj   +1 more source

Quantum internet using code division multiple access

, 2013
A crucial open problem in large-scale quantum networks is how to efficiently transmit quantum data among many pairs of users via a common data-transmission medium.
A Acín, A Nevet, A Ortigosa-Blanch, AS Holevo, C-W Chou, CRS Williams, D Felinto, DF Phillips, DN Matsukevich, G Brassard, G Brassard, G Smith, HJ Kimble, I Buluta, I Devetak, J Clarke, J Ohtsubo, J Zhang, J-W Pan, JI Cirac, JQ You, JQ You, K Yoshino, L Aparicio, L Czekaj, LM Duan, M Heurs, M Keyl, M Tsang, M Zhang, MD Lukin, N Gisin, N Sangouard, P Townsend, R Blatt, S Lloyd, S-B Shim, T Carmon, X Maitre, XB Wang, XY Lü, YF Xiao   +41 more
core   +1 more source

Revealing Chronotypes Across Aquatic Species Using Acoustic Telemetry

Fish and Fisheries, Volume 26, Issue 6, Page 1134-1145, November 2025.
ABSTRACT Acoustic telemetry offers valuable opportunities to investigate individual variability in circadian‐related and other behaviours and how environmental cues shape these patterns in wild fish populations. However, this potential has not yet been fully exploited.
Martina Martorell‐Barceló, David Abecasis, Mourad Akaarir, Alexandre Alonso‐Fernández, Robert Arlinghaus, Eneko Aspillaga, Margarida Barcelo‐Serra, Niels W. P. Brevé, Jan G. Davidsen, Antoni Gamundí, Amalia Grau, Bernat Hereu, Ivan Jarić, Andrzej Kapusta, Sue Lowerre‐Barbieri, Christopher T. Monk, Anja K. Nickel, María C. Nicolau, Guðbjörg Á. Ólafsdóttir, Esben M. Olsen, Renanel Pickholtz, Marie Prchalová, Jan Reubens, Milan Říha, Inge van der Knaap, Pieterjan Verhelst, David Villegas‐Ríos, Josep Alós   +27 more
wiley   +1 more source

A generic radio channel emulator to evaluate higher layer protocols in a CDMA system [PDF]

, 2000
Currently, we are involved in the standardisation process to specify the next mobile system generation. A wideband code division multiple access (WCDMA) system is considered in most of the region versions.
Díaz Romero, M. del Pilar, Umbert Juliana, Anna   +1 more
core   +1 more source

Impact of magnetic fields from tablets, laptops, smartphones, and household/leisure magnets on cardiac implantable electronic devices

Journal of Arrhythmia, Volume 41, Issue 4, August 2025.
This study on 13 Cardiac implantable electronic device (CIED) models revealed that surface magnetic fields of tablets, laptops, smartphones, and household magnets exceeded 10 G, potentially triggering magnet response mode. Activation occurred at ≤15 mm for electronic devices and ≤7 mm for household magnets.
Norio Kamitani, Aya Miyazaki, Satoko Tomida, Keita Shimizu, Nodoka Ohira, Keisyun Kondo, Hiromichi Miura, Daishi Koyama, Shigehiko Tominaga, Ryuta Henmi, Ryo Sugiura, Hiroshi Masui   +11 more
wiley   +1 more source

A Novel CDMA-Based Secret Message Multiplexing Scheme by Image Data Hiding

Mathematics, 2023
In this paper, based on the concept of Code Division Multiple Access (CDMA), we propose an innovative secret message multiplexing scheme by digital image data hiding.
Chih-Hung Lee, Kun-Sheng Sun, Ji-Hwei Horng, Chin-Chen Chang   +3 more
doaj   +1 more source

Adaptive Beamforming and Adaptive Modulation-Assisted Network Performance of Multiuser Detection-Aided FDD and TDD CDMA Systems

, 2007
The network performance of a frequency division duplex and time division duplex (TDD) code division multiple access (CDMA)-based system is investigated using system parameters similar to those of the Universal Mobile Telecommunication System.
Blogh, J.S., Hanzo, L., Ni, S.
core   +1 more source