Advanced multicarrier technologies for future radio communication : 5G and beyond / / by Hanna Bogucka, Adrian Kliks, Paweł Kryszkiewicz

• Record Nr.: UNINA9910830278603321
• Autore: Bogucka Hanna
• Pubbl/distr/stampa: Hoboken, New Jersey, USA : , : Wiley, , 2017; [Piscataqay, New Jersey] : , : IEEE Xplore, , [2017]
• ISBN: 1-119-16892-9; 1-119-16891-0; 1-119-16893-7
• Descrizione fisica: 1 PDF (304 pages)
• Classificazione: TEC007000
• Disciplina: 621.3845/6
• Soggetti: Wireless communication systems - Technological innovations; Multiplexing; Carrier waves
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Machine generated contents note: Preface List of Abbreviations Acknowledgments Chapter 1: Introduction 1.1 5G radio communications 1.2 Challenges for future radio communications 1.3 Initiatives for the future radio interface definition Chapter 2: Multicarrier technologies in radio communication systems 2.1 The principles of OFDM 2.2 Non-linear distortions in multi-carrier systems 2.3 PAPR reduction methods 2.4 Link adaptation in multi-carrier systems 2.5 Reception techniques and CFO sensitivity Chapter 3: Non-contiguous OFDM for future radio communications 3.1 Enhanced NC-OFDM with Cancellation Carriers 3.2 Reduction of subcarrier spectrum sidelobes by Flexible Quasi-Systematic Precoding 3.3 Reduction of nonlinear effects in NC-OFDM 3.4 NC-OFDM Receiver design 3.5 Summary: Potentials and challenges of NC-OFDM Chapter 4: Generalized multi-carrier techniques for 5G radio 4.1 The principles of GMC 4.2 Peak-to-Average Power Ratio reduction in GMC transmitters 4.3 Link adaptation in GMC systems 4.4 GMC receiver issues 4.5 Summary Chapter 5: Filter-bank based multicarrier technologies 5.1 The principles of FBMC transmission 5.2 FBMC transceiver design 5.3 ; Pulse Design 5.4 Practical FBMC systems design issues 5.5 Filter-bank based multicarrier systems revisited 5.6 Summary Chapter 6: Multicarrier technologies for flexible spectrum usage 6.1 Cognitive radio 6.2 Spectrum sharing and licensing schemes 6.3 Dynamic spectrum access based on multicarrier technologies 6.4 Dynamic spectrum aggregation 6.5 Summary Chapter 7: Conclusions and Future Outlook Index.
• Sommario/riassunto: "A practical review of state-of-the-art non-contiguous multicarrier technologies that are revolutionizing how data is transmitted, received, and processed This book addresses the advantages and the limitations of modern multicarrier technologies and how to meet the challenges they pose using non-contiguous multicarrier technologies and novel algorithms that enhance spectral efficiency, interference robustness, and reception performance. It explores techniques using non-contiguous subcarriers which allow for flexible spectrum aggregation while achieving high spectral efficiency and flexible transmission and reception at lower OSI layers. These include non-contiguous orthogonal frequency division multiplexing (NC-OFDM), its enhanced version, non-contiguous filter-bank-based multicarrier (NC-FBMC), and generalized multicarrier. Following an overview of current multicarrier technologies for radio communication, the authors examine particular properties of these technologies that allow for more efficient usage within key directions of 5G. They examine the principles of NC-OFDM and discuss efficient transmitter and receiver design. They present the principles of FBMC modulation and discuss key challenges for FBMC communications while comparing performance results with traditional OFDM. They move on from there to a fascinating discussion of GMC modulation within which they clearly demonstrate how that technology encompasses all of the advantages of previously discussed techniques, as well as all imaginable multi- and single-carrier waveforms.; Addresses the problems and limitations of current multicarrier technologies (OFDM) Describes innovative techniques using non-contiguous multicarrier waveforms as well as filter-band based and generalized multicarrier waveforms Provides a thorough review of the practical limitations and solutions for evolving and breakthrough 5G communication technologies Explores the future outlook for non-contiguous multicarrier technologies as regards their greater industrial realization, hardware practicality, and other challenges Advanced Multicarrier Technologies for Future Radio Communication: 5G and Beyondis an indispensable working resource fortelecommunication engineers, researchers and academics, as well as graduate and post-graduate students of telecommunications. At the same time, it provides a fascinating look at the shape of things to come for telecommunication industry executives, telecom operators, regulators, policy makers, and economists. "--

Circadian Clock in Brain Health and Disease / / edited by Olivia Engmann, Marco Brancaccio

• Record Nr.: UNINA9910508447003321
• Pubbl/distr/stampa: Cham : , : Springer International Publishing : , : Imprint : Springer, , 2021
• ISBN: 3-030-81147-6
• Edizione: [1st ed. 2021.]
• Descrizione fisica: 1 online resource (193 pages)
• Collana: Advances in Experimental Medicine and Biology, , 2214-8019 ; ; 1344
• Disciplina: 612.022
• Soggetti: Neurosciences; Neuropsychology; Neural circuitry; Nervous system - Diseases; Neuroscience; Neural Circuits; Neurological Disorders; Ritmes circadiaris; Salut mental; Malalties cerebrals; Llibres electrònics
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: PART I. Molecular Gears of the Circadian Clock -- Introduction to the Clock System -- Circadian Clocks, Sleep, and Metabolism -- Linking Depression to Epigenetics: Role of the Circadian Clock -- PART II. Brain Regions Implicated in Circadian Rhythms -- The Brain's Reward System in Health and Disease -- Brain Clocks, Sleep and Mood -- Astrocyte Circadian Timekeeping in Brain Health and Neurodegeneration -- PART III. Clock and Mental Illness -- The Role of the Circadian System in Attention Deficit Hyperactivity Disorder -- How Psychoactive Drugs and the Circadian Clock Are Enlightening One Another -- Circadian Rhythms in Mood Disorders -- The Reciprocal Interaction Between Sleep and Alzheimer’s Disease.
• Sommario/riassunto: In this book, leading experts in the field review how circadian rhythms impact the brain. An essential function of mammalian life is the exploitation of the regularities provided by the 24-hour cycle of day and night. The development and evolution of circadian clock mechanisms have allowed us to optimally adapt our behavior and physiology to the external world. Not surprisingly, a growing body of evidence links the disruption of circadian rhythms by genetic, lifestyle and environmental factors to illnesses of the brain. In the first section of the book, readers will learn about the molecular and anatomic architecture of circadian function in mammals. The ways in which environmental disruptions and misalignments can influence such mechanisms and therefore impair brain function and health status are also addressed. In the second part, the focus shifts to those brain regions responsible for brain function and the body-wide regulation of circadian function. Amongst others, special attention is paid to the role of astrocytes and the brain’s reward and hyprocretin / orexin systems. The book concludes with an extensive discussion on the consequences of circadian rhythm dysfunction. Several chapters present the latest findings on Attention Deficit Hyperactivity Disorder, schizophrenia, autism spectrum disorder, drug abuse and mood disorders. Written by auhorities in the field, the book provides a state-of-the-art review of the latest findings on circadian clocks in the brain and highlights their potentially far-reaching impacts on our health and well-being. As such, it is essential reading for all neuroscientists and clinicians seeking to understand the intricate connections between circadian rhythms and brain health and illness.