Results 31 to 40 of about 122,557 (242)

Reconfigurable Signal Processing and Hardware Architecture for Broadband Wireless Communications

EURASIP Journal on Wireless Communications and Networking, 2005
This paper proposes a broadband wireless transceiver which can be reconfigured to any type of cyclic-prefix (CP) -based communication systems, including orthogonal frequency-division multiplexing (OFDM), single-carrier cyclic-prefix (SCCP) system ...
Liang Ying-Chang, Naveen Sayed, Pilakkat Santosh K, Marath Ashok K   +3 more
doaj   +2 more sources

Spectral Efficiency of Random Time-Hopping CDMA

, 2015
Traditionally paired with impulsive communications, Time-Hopping CDMA (TH-CDMA) is a multiple access technique that separates users in time by coding their transmissions into pulses occupying a subset of $N_\mathsf{s}$ chips out of the total $N$ included
Di Benedetto, Maria-Gabriella, Ferrante, Guido Carlo   +1 more
core   +3 more sources

Performance of direct-oversampling correlator-type receivers in chaos-based DS-CDMA systems over frequency non-selective fading channels [PDF]

, 2017
In this paper, we present a study on the performance of direct-oversampling correlator-type receivers in chaos-based direct-sequence code division multiple access systems over frequency non-selective fading channels.
Barlet Ros, Pere, Nguyen, Xuan Quyen
core   +2 more sources

Complementary Therapies in Pain Management in Hospitalized Patients: A Scoping Review

Nursing Forum, Volume 2026, Issue 1, 2026.
Background The pain is influenced by various biopsychosocial factors. Its presence can negatively affect both the physiological and psychological states of an individual. Nonpharmacological strategies have gained prominence by complementing, rather than replacing, pharmacological treatment.
Kauanny Vitoria Gurgel dos Santos, Louise Constância de Melo Alves Silva, Mariane Elivânia Silva, Jucielly Ferreira da Fonseca, Myrza Torres Ferreira, Guilherme Moises Alves Fernandes, Daniele Vieira Dantas, Rodrigo Assis Neves Dantas, Foroozan Atashzadeh-Shoorideh   +8 more
wiley   +1 more source

СРАВНИТЕЛЬНЫЙ АНАЛИЗ РАЗЛИЧНЫХ ТЕХНОЛОГИЙ РАДИОТЕЛЕФОННОЙ СВЯЗИ DECT, GSM, CDMA

Cifra: Информационные технологии и телекоммуникации
В данной статье проведен сравнительный анализ трех основных технологий радиотелефонной связи: DECT, GSM и CDMA. Каждая из этих технологий имеет свои уникальные особенности, области применения и происточные преимущества и недостатки.
Галыгин С.С., Маяков А.К., Сергеев А.Э.   +2 more
doaj   +1 more source

Analysis of CDMA systems that are characterized by eigenvalue spectrum

, 2006
An approach by which to analyze the performance of the code division multiple access (CDMA) scheme, which is a core technology used in modern wireless communication systems, is provided.
Ciliberti S., de Almeida J. R. L., Harmuth H. F., K Takeda, Kabashima Y., Kabashima Y., Kinzel W., Murayama T., Murayama T., Nishimori H., Opper M., Parisi G., S Uda, Tanaka T., Thouless D. J., Verdu S., Y Kabashima   +16 more
core   +1 more source

Downlink Steered Space-Time Spreading Assisted Generalised Multicarrier DS-CDMA Using Sphere-Packing-Aided Multilevel Coding [PDF]

, 2007
This paper presents a novel generalised Multi-Carrier Direct Sequence Code Division Multiple Access (MC DS-CDMA) system invoking smart antennas for improving the achievable performance in the downlink, as well as employing multi-dimensional Sphere ...
El-Hajjar, M, Hanzo, L, Hu, B, Tee, R, Yang, L-L   +4 more
core   +1 more source

CA-CDMA: channel-adapted CDMA for MAI/ISI-free burst transmission

IEEE Transactions on Communications, 2002
This paper proposes a precoding technique for the complete elimination of both multiple-access interference and intersymbol interference in the uplink of a code-division multiple-access system based on burst transmission, with reduction of the minimum mean-square error joint detector to a simple filter matched to the total impulse responses.
Horlin, François, Vandendorpe, Luc
openaire   +2 more sources

The Role of Porosity in SERS

Advanced Optical Materials, Volume 13, Issue 34, December 2, 2025.
This review explores how engineered porous materials enhance surface‐enhanced Raman scatering (SERS) spectroscopy by synergizing analyte enrichment and electromagnetic field amplification. It is systematically evaluated four classes, nanoporous metals, plasmonic polymers, mesoporous silica, and metal‐organic frameworks (MOFs), highlighting their unique
Miguel A. Correa‐Duarte, I. Brian Becerril‐Castro, Ramon A. Alvarez‐Puebla   +2 more
wiley   +1 more source

The Proof Is in the Eating: Lessons Learnt from One Year of Generative AI Adoption in a Science-for-Policy Organisation

AI
This paper presents the key results of a large-scale empirical study on the adoption of Generative AI (GenAI) by the Joint Research Centre (JRC), the European Commission’s science-for-policy department.
Bertrand De Longueville, Ignacio Sanchez, Snezha Kazakova, Stefano Luoni, Fabrizio Zaro, Kalliopi Daskalaki, Marco Inchingolo   +6 more
doaj   +1 more source