Results 61 to 70 of about 31,714 (226)

Handoff modeling in cellular CDMA with finite sources and state-dependent bandwidth requirements [PDF]

, 2014
It is envisioned that small cells are going to play an important role in future cellular networks. Due to limited coverage areas of small cells and increased user mobility, a proper analysis and evaluation of handoff traffic is of major importance.
Vasilakis, Vasileios, Moscholios, Ioannis, Logothetis, Michael, Vassilakis, Vassilios, Ioannis D. Moscholios, Vardakas, John, Michael D. Logothetis, Vassilios G. Vassilakis, John S. Vardakas   +8 more
core   +1 more source

Blind estimation of spreading sequence of CDMA signals based on Fast-ICA and performance analysis

Tongxin xuebao, 2011
The DS-CDMA signals can be divided into two types,the short-code（SC） and the long-code（LC） DS-CDMA signal.The existing methods are only used to estimate spreading sequences of SC-DS-CDMA signals,which cannot work for the LC-DS-CDMA signals.A new blind ...
LU Feng-bo, HUANG Zhi-tao, JIANG Wen-li
doaj   +2 more sources

Canadian water‐related fatalities: Demographic, situational, and environmental risk factors

Journal of Forensic Sciences, Volume 70, Issue 6, Page 2403-2419, November 2025.
Abstract Unintentional water‐related deaths are an ongoing global problem, despite being named by the United Nations as one of the leading preventable causes of death. To address the need for enhanced analysis of drowning risk factors, including demographic and situational conditions that may influence death outcomes, this research involved a three ...
Vienna Chichi Lam, James Bryan Kinney, Lisa Hanson Ouellette, Barbara Byers, Gail Scott Anderson   +4 more
wiley   +1 more source

Slow Frequency-Hopping Multicarrier DS-CDMA for Transmission over Nakagami Multipath Fading Channels [PDF]

, 2001
A novel multiple access scheme based on slow frequency hopping multicarrier direct-sequence code division multiple access (SFH/MC DS-CDMA) is proposed and investigated, which can be rendered compatible with the existing second-generation narrowband CDMA ...
Yang, L-L., Hanzo, L.
core  

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

Broadband MC DS-CDMA Using Space-Time and Frequency-Domain Spreading [PDF]

, 2002
In this contribution multicarrier direct-sequence code-division multiple-access (MC DS-CDMA) using space-time spreading (STS) assisted transmit diversity and frequency-domain (F-domain) spreading is investigated in the context of broadband communications
Yang, L-L., Hanzo, L.
core  

Partial Equalization for MC–CDMA Systems in Non-Ideally Estimated Correlated Fading [PDF]

, 2010
Multicarrier code-division multiple access (MC–CDMA) can support high data rates in next-generation multiuser wireless communication systems. Partial equalization (PE) is a low-complexity technique for combining the signals of subcarriers to improve the ...
Conti, Andrea, Flavio Zabini, Zabini, Flavio, Andrea Conti, B. M. Masini, Masini, Barbara M, L. Hanzo, F. Zabini, Hanzo, Lajos, Barbara M. Masini, Lajos Hanzo   +10 more
core   +1 more source

Sequence Selection and Performance in DS/CDMA Systems

Semina: Ciências Exatas e Tecnológicas, 2016
In this work key concepts on coding division multiple access (CDMA) communication systems have been discussed. The sequence selection impact on the performance and capacity of direct sequence CDMA (DS/CDMA) systems under AWGN and increasing system ...
Jefferson Santos Ambrosio, Franscisco de Assis Scannavino Junior, Taufik Abrão   +2 more
doaj   +1 more source

Plasmon‐Driven Nitrogen Photoreduction to Ammonia Using Silica‐Encapsulated Au Nanostar/TiO2 Nanohybrids

Advanced Energy Materials, Volume 15, Issue 33, September 2, 2025.
Photocatalytic N₂ reduction is a sustainable method for ammonia production. Au nanostars (AuNST) with TiO2 excel, especially when encased in mesoporous silica, enhancing stability and selectivity without scavengers. Electromagnetic fields at nanostar spikes drive hot‐electron transfer to TiO2 for N2 reduction under visible light, while hot holes ...
Yoel Negrín‐Montecelo, Ana Sousa‐Castillo, Noel Cardeñoso‐Garrido, Lucía Guillade, Lucas V. Besteiro, Margarita Vázquez‐González, Ramón A. Alvarez‐Puebla, Begoña Puértolas, Miguel A. Correa‐Duarte   +8 more
wiley   +1 more source

Macrocellular Propagation Prediction for Wireless Communications in Urban Environments

Journal of Computer Science and Technology, 2010
In this paper, the signal propagation characteristics of urban environments are predicted by modeling important propagation parameters of the Code Division Multiple Access (CDMA) network for macrocells.
Moses E. Ekpenyong, Samuel Robinson, Joseph Isabona   +2 more
doaj