<p>This book describes a communication paradigm that could shape the future of wireless communication networks, Opportunistic Spectrum Access (OSA) in Cognitive Radio Networks (CRN).  While several theoretical OSA approaches have been proposed, they are challenged by the practical limitations of cognitive radios: the key enabling technology of OSA.  This book presents an unprecedented formulation of the OSA problem in CNR that takes into account the practical limitations encountered due to existing technologies. Based on such a problem formulation, this book presents a framework and protocol details implementing the analytically-optimized solution of this problem. Unlike the state-of-the-art of CRN implementations that typically target software define radios which are not suitable for real systems, this book describes the implementation of distributed OSA, using practical radio transceiver technologies. It provides a thorough characterization of the gains available to theoretical OSA approaches if the practical limitations are taken into consideration.  </p> <p></p> <ul> <li>Tackles the cognitive radio networks performance optimization problem, taking into account the practical limitations of today’s technologies;</li> <li> Provides thorough performance evaluation in arbitrary, large-scale networks, as well as microscopic, small-scale performance evaluation, using realistic hardware implementation;</li> <li>Presents an empirical study of the gains available over existing techniques by adopting practical approaches;</li> </ul> <p></p> <ul> <li>Tackles the cognitive radio networks performance optimization problem, taking into account the practical limitations of today’s technologies;</li> <li> Provides thorough performance evaluation in arbitrary, large-scale networks, as well as microscopic, small-scale performance evaluation, using realistic hardware implementation;</li> <li>Presents an empirical study of the gains available over existing techniques by adopting practical approaches;</li> </ul>
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Due to the light and screen difference, the item's color maybe slightly different from the pictures.
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<p>This book investigates the design of devices, systems, and circuits for medical applications using the two recently established frequency bands: ultra-wideband (3.1-10.6 GHz) and 60 GHz ISM band. These two bands provide the largest bandwidths available for communication technologies and present many attractive opportunities for medical applications. The applications of these bands in healthcare are wireless body area network (WBAN), medical imaging, biomedical sensing, wearable and implantable devices, fast medical device connectivity, video data transmission, and vital signs monitoring. The recent technological advances and developments proposed or used in medicine based on these two bands are covered. The book introduces possible solutions and design techniques to efficiently implement these systems in medical environment.<br><br>All individual chapters are written by leading experts in their fields.  Contributions by authors are on various applications of ultra-wideband and the 60 GHz ISM band including circuit implementation, UWB and 60 GHz signal transmission around and in-body, antenna design solution, hardware implementation of body sensors, UWB transceiver design, 60 GHz transceiver design, UWB radar for contactless respiratory monitoring, and ultra-wideband based medical Imaging. The book will be a key resource for medical professionals, bio-medical engineers, and graduate and senior undergraduate students in computer, electrical, electronic and biomedical engineering disciplines.<b></b></p>
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We are founded in 20 10, is a professional purchasing B2B & B2C tool in electronic components field. We will reply you in 24 hours and give your a satified answer. During the warranty period, we can help them repair for free.
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<ul> <li><b>Praktische Beschreibung zahlreicher Sensoren</b></li> <li><b>Beispielprojekte aus den Bereichen Hausautomation, Mensch und Umwelt</b></li> <li><b>Daten übertragen mit LoRa und MQTT, auf SD-Karte speichern und mit LEDs und OLEDs anzeigen</b></li> </ul> <p></p> <p>Dieses Buch bietet einen praktischen Einstieg in die faszinierende Welt der Sensoren, die zusammen mit dem Arduino UNO R4 eingesetzt werden können: Temperatur-, Umweltsensoren, Infrarot- und Ultraschall-Sensoren, LEDs, OLEDs u.v.m. So kann der Arduino auf seine Umgebung reagieren und zahlreiche Werte erfassen, die vom Arduino-Board weiterverarbeitet und dargestellt werden können.</p> <p>Die vielen Beispielprojekte richten sich an Einsteiger, die bereits etwas Erfahrung mit dem Arduino-Board gesammelt haben und nun neue Anwendungen realisieren wollen.</p> <p>Thomas Brühlmann zeigt Ihnen zahlreiche Sensoren und Beispielanwendungen zum Messen, Erfassen und Verarbeiten von Daten – detailliert mit Stückliste, Steckbrettaufbau und Beispielcode – zu den Themen Mensch & Umwelt sowie Haus & Hof. Beispiele sind Infrarot-Fernbedienung, Fensterkontakt, Bewegungsalarm sowie ein universelles Sensor-Board als LoRa-Sender und -Empfänger. Mit dem Arduino UNO R4 WIFI können Webanwendungen wie Webclient und Webserver realisiert werden.</p> <p>Mit dem Wissen aus diesem Praxis-Handbuch können Sie Ihre eigenen Ideen kreativ umsetzen.</p><b>Projekte aus dem Buch:</b> <ul> <li>Nachtlampe mit LDR</li> <li>Lux-Meter</li> <li>UV-Index-Monitor</li> <li>Abstandsmesser für Garage</li> <li>Garagentor-Wächter</li> <li>Süßigkeitenschrank-Wächter</li> <li>Waage für die Werkstatt</li> <li>Digitaler Kompass mit LED-Anzeige</li> <li>Alkohol-Messgerät</li> <li>Fensterkontakt überwachen</li> <li>LoRa-Sender und -Empfänger mit RFM95-Transceiver</li> <li>Datenlogger</li> <li>Bargraph-Display mit OLED</li> </ul>
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Double-deck bag for XieGu G90. have Velcro strap to fix G90. second layer can install G90,mic and manual or Ipad. G90 special bag x1. G90,mic,cables is not included. Note:just include special bag. (I don't advise you use the plastic case,plastic case is too heavy).
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<p>The fields of communication, signal processing, and embedded systems and circuits are brought together in this book. These fields come together with a single design goal, a WLAN transceiver which combines analog and digital design, VLSI and systems design, algorithms and architectures, as well as design and CAD/EDA. This book focuses on the overall approach to design problems and design organization needed for transceiver design. It does not focus on one particular standard.</p>
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◆ Warranty Note —— We provide 1 year warranty from the sale of Xiegu G90. About Xiegu G90. The G90 has a separate display that can be separated from the host unit and connected via a VGA cable. ◀ ▶ Convenient Side Interface: G90 uses 3.5mm stereo jack (3-pin) for connecting headphones.
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Building upon the success of the first edition (2007), Wireless Transceiver Design 2nd Edition is an accessible textbook that explains the concepts of wireless transceiver design in detail. The architectures and the detailed design of both traditional and advanced all-digital wireless transceivers are discussed in a thorough and systematic manner, while carefully watching out for clarity and simplicity. Many practical examples and solved problems at the end of each chapter allow students to thoroughly understand the mechanisms involved, to build confidence, and enable them to readily make correct and practical use of the applicable results and formulas. From the instructors' perspective, the book will enable the reader to build courses at different levels of depth, starting from the basic understanding, whilst allowing them to focus on particular elements of study. In addition to numerous fully-solved exercises, the authors include actual exemplary examination papers for instructors to use as a reference format for student evaluation. The new edition has been adapted with instructors/lecturers, graduate/undergraduate students and RF engineers in mind. Non-RF engineers looking to acquire a basic understanding of the main related RF subjects will also find the book invaluable.
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Xiegu G90 20W QRP SSB/CW/AM/FM 0.5-30MHz SDR Radio HF transceiver Detach Display. Xiegu G-series, G90 ---- Portable 20W HF amateur radio transceiver. 【G90 Newest Update Info】. Receive Frequency Range: 0.5MHz to 30MHz.
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<p>Transceiver optyczny 10GbE SFP+ 1310nm LR do 10km</p>
kakto.pl (PL)
FT8 8-Pin Mini DIN DATA Cable for XIEGU G90 X5105 G106C. It's special made for xiegu G90 and X5105 G106C. FT8 8-Pin Mini DIN DATA Cable for XIEGU G90 X5105 G106C × 1. Use FT8 and any other ACC data connect for PC desktop and laptop computers.
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<p><b>Transceiver SFP 2Pack UACC-OM-SM-10G-D-2 </b><br/>Interfejs jest punktem interakcji z programem lub sprzętem komputerowym, albo z urządzeniami peryferyjnymi. takimi jak monitor czy klawiatura. Niektóre interfejsy, np. ekrany dotykowe, wysyłają i odbierają dane, podczas gdy inne - myszka, mikrofon - jedynie je wysyłają. Standardowy interfejs, taki jak SCSI, swoim działaniem pozwala użytkownikom i producentom na dużą elastyczność w implementacji systemów komputerowych.<br/><br/>Maksymalna ... (zobacz więcej)</p>
kakto.pl (PL)
Double-deck bag for XieGu G90. have Velcro strap to fix G90. second layer can install G90,mic and manual or Ipad. G90 special bag x1. G90,mic,cables is not included. first layer can put many cables and notebook;.
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<p>TL-SM321B-2 </p> <p>Moduł dwukierunkowy SFP, WDM, 1000Base-BX</p> <ul><li>Wykorzystanie najnowszego standardu 1000Base-BX</li> <li>Transmisja na dystansie do 2 km na jednomodowym kablu światłowodowym 9/125 m</li> <li>Zgodność z wymogami SFP-MSA</li> <li>Obsługa funkcji DDM</li> <li>Możliwość podłączania i odłączania urządzenia metodą Hot Swap</li> </ul><p>Możliwości produktu</p> <ul><li>Moduł TL-SM321B-2 TP-Link to urządzenie zaprojektowane zgodnie ze wszystkimi wymogami umowy SFP-MSA. Ten dwukierunkowy transceiver optyczny WDM wyposażony został w ... (zobacz więcej)</li></ul>
kakto.pl (PL)
This cord is 16AWG,Xiegu G90 original power cord is 18AWG. Fuse holder is also better than xiegu G90 original. Spare extra anderson connector,g90 connector,fuse. current: 10A, fuse holder has been installed.
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