Results 111 to 120 of about 5,522,602 (276)

Dynamic Spectrum Management and Spectrum Sharing Techniques in 5G Networks: A Survey

Journal of Mobile Multimedia
The enormous developments of gaming devices as well as mobile apps have increased the demand of bandwidth. Development of wireless applications has been affected because of the insufficient spectrum resources in the 3G and 4G network. This spectrum scarcity is the main limitation of 3G and 4G networks, which leads to the revolution of the 5G technology.
Sonali Mondal, Manash Pratim Dutta, Swarnendu Kumar Chakraborty   +2 more
openaire   +2 more sources

Frequency and Phenotype of Coexisting Aquaporin‐4 and Autoimmune Encephalitis Autoantibodies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Among 9457 aquaporin‐4 (AQP4) immunoglobulin G‐positive patients, 2071 underwent autoimmune encephalitis antibody testing and 85 (4%) had coexisting antibodies, most commonly cerebrospinal fluid glial fibrillary acidic protein‐IgG and N‐methyl‐D‐aspartate receptor‐IgG, or serum high‐titer GAD65‐IgG.
Laura Cacciaguerra, Binxia Yang, Vanda A. Lennon, Shruti P. Agnihotri, Nusrat Ahsan, Karen S. Fernandez, Erin McLeod, Georgios Mangioris, William R. Meador, Wendy G. Mitchell, Jacqueline A. Nicholas, Amy M. L. Quek, Thomas Shoemaker, Kurt Sieloff, Matt C. Edmond, Rebekah A. Laggis, Kristin L. Flynn, Jessica A. Sagen, Emmanuelle Waubant, John J. Chen, Sarosh R. Irani, Andrew McKeon, Anastasia Zekeridou, Eoin P. Flanagan, Sean J. Pittock, Amy Kunchok   +25 more
wiley   +1 more source

Centralised dynamic spectrum sharing in wireless networks. [PDF]

, 2018
The static method of allocating fixed blocks of spectrum, over a considerable period of time is gradually giving way to a more flexible method of using the spectrum.
Salami, G. K.
core   +1 more source

Research on key technologies for spectrum sharing in satellite-terrestrial integrated networks

Dianxin kexue
With the increasing demand for ubiquitous broadband communication and the continuous evolution of space-terrestrial integrated communication technology, satellite communication and terrestrial mobile communication networks have gradually shifted from ...
YI Pengfei, DU Qin, ZHANG Peng, WU Zehua, WANG Rui, CHENG Jinxia, DENG Wei   +6 more
doaj  

Opportunistic Throughput Optimization in Energy Harvesting Dynamic Spectrum Sharing Wireless Networks

IEEE Open Journal of the Communications Society
We investigate opportunistic transmissions in a time-slotted wireless network, emphasizing constraints arising from finite durations allocated to various network operations and the availability of energy for these operations.
Amirhossein Taherpour, Abbas Taherpour, Tamer Khattab, Mohamed Abdallah   +3 more
doaj   +1 more source

Diffusion Basis Spectrum Imaging of Tissue Microstructure and Early Treatment in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Conventional MRI cannot resolve the coexisting pathological processes within multiple sclerosis tissue. Diffusion Basis Spectrum Imaging decomposes the diffusion signal into fiber, cell, and hindered ratios indexing axonal integrity, cellularity, and extracellular space, respectively.
Apisit Kaewsanit, Aime Luna, Bradley Judge, Nicole Shelley, Karl Friedrichsen, Jayashree Rajamanickam, Zhude Tu, Yong Wang, Tammie L. S. Benzinger, Qing Wang, Matthew R. Brier   +10 more
wiley   +1 more source

Clinical Variability and Genotype Driven Outcomes in an International Cohort of 14 Pediatric FIG4 Patients

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Biallelic FIG4 variants classically cause distinct conditions characterized by peripheral neuropathy (Charcot‐Marie‐Tooth disease type 4J) or skeletal dysplasia (Yunis‐Varón syndrome). However, central nervous system involvement is increasingly recognized. The prevalence and specific characteristics of movement disorders within FIG4‐
Andrea Gangfuß, Vykuntaraju K. Gowda, Daniel Natera‐de Benito, Pinki Munot, Maria Vanegas, Alejandra Darling, Constanze Reutlinger, Laura Carrera‐Garcia, Gilbert Wunderlich, Heike Kölbel, Burkhard Stüve, David Muhmann, Lucía Monfort Belenguer, Diana‐Gabriela Barca, Viveka Santhosh Reddy C, Varunvenkat M. Srinivasan, Cristina Molina Anguita, Heinz Jungbluth, Hormos Salimi Dafsari, Thomas Rossor, Johann Böhm, Ulrike Schara‐Schmidt, Andreas Roos   +22 more
wiley   +1 more source

Molecular Diagnosis in Children With Febrile Seizures: Beyond the Conventional Clinical Classification

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Febrile seizures (FS) are currently classified as simple or complex primarily to describe seizure characteristics, with limited ability to identify the underlying etiology. We evaluated whether molecular diagnosis could complement conventional classification and improve the diagnosis and management of FS.
Jia Wang, Mengna Zhang, Yangyang Wang, Xiuyu Shi, Baoguang Li, Xiuxia Wang, Dan Sun, Sanqing Xu, Jianbo Zhao, Lijun Du, Qiming Pang, Xiaoming Liu, Chunhui Tang, Xiaohua Li, Jiuwei Li, Yanli Ma, Jianxiang Liao, Gulixian Abudureyimu, Jianmin Liang, Yuan Wang, De Wu, Jian Wu, Liping Zou   +22 more
wiley   +1 more source

Enhanced spectrum sharing for multi-satellite low-orbit arrays through task-driven collaborative optimization

Discover Applied Sciences
The increasing density of Low-Earth Orbit (LEO) satellite constellations presents significant challenges in spectrum management, particularly for weak signal perception under interference.
Jieliang Zheng, Qiang Lv, Fenghua Xu, Yukun Zhu, Yu Chen   +4 more
doaj   +1 more source

Towards Practical Dynamic Spectrum Sharing

, 2011
Static spectrum allocation policies of the past have led to an artificial spectrum scarcity problem. The ideal solution is dynamic spectrum sharing, where wireless devices dynamically access spectrum matching their demands and share spectrum with peers ...
Yang, Lei
core