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Author: Alyssa Apsel
Publisher: Springer Science & Business Media
ISBN: 1461418453
Category : Technology & Engineering
Languages : en
Pages : 159
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Book Description
This book covers the fundamental principles behind the design of ultra-low power radios and how they can form networks to facilitate a variety of applications within healthcare and environmental monitoring, since they may operate for years off a small battery or even harvest energy from the environment. These radios are distinct from conventional radios in that they must operate with very constrained resources and low overhead. This book provides a thorough discussion of the challenges associated with designing radios with such constrained resources, as well as fundamental design concepts and practical approaches to implementing working designs. Coverage includes integrated circuit design, timing and control considerations, fundamental theory behind low power and time domain operation, and network/communication protocol considerations.
Author: Alyssa Apsel
Publisher: Springer Science & Business Media
ISBN: 1461418453
Category : Technology & Engineering
Languages : en
Pages : 159
Get Book Here
Book Description
This book covers the fundamental principles behind the design of ultra-low power radios and how they can form networks to facilitate a variety of applications within healthcare and environmental monitoring, since they may operate for years off a small battery or even harvest energy from the environment. These radios are distinct from conventional radios in that they must operate with very constrained resources and low overhead. This book provides a thorough discussion of the challenges associated with designing radios with such constrained resources, as well as fundamental design concepts and practical approaches to implementing working designs. Coverage includes integrated circuit design, timing and control considerations, fundamental theory behind low power and time domain operation, and network/communication protocol considerations.
Author: Rajeev Kumar Dokania
Publisher:
ISBN:
Category :
Languages : en
Pages : 452
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Book Description
Recent advances in home healthcare, environmental sensing, and low power computing have created a need for wireless communication at very low power for low data rate applications. Due to higher energy/bit requirements at lower data -rate, achieving power levels low enough to enable long battery lifetime (~10 years) or power-harvesting supplies have not been possible with traditional approaches. Dutycycled radios have often been proposed in literature as a solution for such applications due to their ability to shut off the static power consumption at low data rates. While earlier radio nodes for such systems have been proposed based on a type of sleepwake scheduling, such implementations are still power hungry due to large synchronization uncertainty (~1[MICRO SIGN]s). In this dissertation, we utilize impulsive signaling and a pulse-coupled oscillator (PCO) based synchronization scheme to facilitate a globally synchronized wireless network. We have modeled this network over a widely varying parameter space and found that it is capable of reducing system cost as well as providing scalability in wireless sensor networks. Based on this scheme, we implemented an FCC compliant, 3-5GHz, timemultiplexed, dual-band UWB impulse radio transceiver, measured to consume only 20[MICRO SIGN]W when the nodes are synchronized for peer-peer communication. At the system level the design was measured to consume 86[MICRO SIGN]W of power, while facilitating multi- hop communication. Simple pulse-shaping circuitry ensures spectral efficiency, FCC compliance and ~30dB band-isolation. Similarly, the band-switchable, ~2ns turn-on receiver implements a non-coherent pulse detection scheme that facilitates low power consumption with -87dBm sensitivity at 100Kbps. Once synchronized the nodes exchange information while duty-cycling, and can use any type of high level network protocols utilized in packet based communication. For robust network performance, a localized synchronization detection scheme based on relative timing and statistics of the PCO firing and the timing pulses ("sync") is reported. No active hand-shaking is required for nodes to detect synchronization. A self-reinforcement scheme also helps maintain synchronization even in the presence of miss-detections. Finally we discuss unique ways to exploit properties of pulse coupled oscillator networks to realize novel low power event communication, prioritization, localization and immediate neighborhood validation for low power wireless sensor applications.
Author: Patrick P. Mercier
Publisher: Springer
ISBN: 3319147145
Category : Technology & Engineering
Languages : en
Pages : 399
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Book Description
This book explores the design of ultra-low-power radio-frequency integrated circuits (RFICs), with communication distances ranging from a few centimeters to a few meters. The authors describe leading-edge techniques to achieve ultra-low-power communication over short-range links. Many different applications are covered, ranging from body-area networks to transcutaneous implant communications and smart-appliance sensor networks. Various design techniques are explained to facilitate each of these applications.
Author: Xiaomin Chen
Publisher:
ISBN:
Category : Detectors
Languages : en
Pages : 214
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Book Description
Author: Edmund James Colli-Vignarelli
Publisher:
ISBN:
Category :
Languages : en
Pages : 546
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Book Description
Author: Mustafijur Rahman
Publisher: Springer
ISBN: 3030213331
Category : Technology & Engineering
Languages : en
Pages : 71
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Book Description
This book describes novel and disruptive architecture and circuit design techniques, toward the realization of low-power, standard-compliant radio architectures and silicon implementation of the circuits required for a variety of leading-edge applications. Readers will gain an understanding of the circuit level challenges that exist for low power radios, compatible with the IEEE 802.15.6 standard. The authors discuss current techniques to address some of these challenges, helping readers to understand the state-of-the-art, and to address the various, open research problems that exist with respect to realizing low power radios. Enables readers to face challenging bottleneck in low power radio design, with state-of-the-art, circuit-level design techniques; Provides readers with basic knowledge of circuits suitable for low power radio circuits compatible with the IEEE 802.15.6 standard; Discusses new and emerging architectures and circuit techniques, enabling applications such as body area networks and internet of things.
Author: Emanuele Lopelli
Publisher: Springer Science & Business Media
ISBN: 9400701837
Category : Technology & Engineering
Languages : en
Pages : 241
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Book Description
Wireless sensor networks have the potential to become the third wireless revolution after wireless voice networks in the 80s and wireless data networks in the late 90s. Unfortunately, radio power consumption is still a major bottleneck to the wide adoption of this technology. Different directions have been explored to minimize the radio consumption, but the major drawback of the proposed solutions is a reduced wireless link robustness. The primary goal of Architectures and Synthesizers for Ultra-low Power Fast Frequency-Hopping WSN Radios is to discuss, in detail, existing and new architectural and circuit level solutions for ultra-low power, robust, uni-directional and bi-directional radio links. Architectures and Synthesizers for Ultra-low Power Fast Frequency-Hopping WSN Radios guides the reader through the many system, circuit and technology trade-offs he will be facing in the design of communication systems for wireless sensor networks. Finally, this book, through different examples realized in both advanced CMOS and bipolar technologies opens a new path in the radio design, showing how radio link robustness can be guaranteed by techniques that were previously exclusively used in radio systems for middle or high end applications like Bluetooth and military communications while still minimizing the overall system power consumption.
Author: Li Qiang
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838368252
Category : Metal oxide semiconductors, Complementary
Languages : en
Pages : 192
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Book Description
The ultra-wideband (UWB) impulse-radio technology has unique features including high data-rate as well as low power consumption with ranging and localization capabilities. An UWB front-end, however, has to accommodate design challenges resulting from the exceptional wide bandwidth of several GHz. This book discusses the implementation issues of the UWB impulse-radio transceiver front-end, including the performance analysis of practical systems and the design of radio-frequency integrated circuits for transceiver front-ends. A general framework for performance evaluation of practical impulse radio system is proposed and demonstrated in scenarios of high-speed data communications as well as low-data-rate wireless body-area networks. An inductorless low- noise amplifier is designed with syncretic adoption of thermal noise canceling, capacitor peaking, and current reuse. The CMOS ransmit/receive switch design with highest reported bandwidth and power handling capability are discussed with customized transistor layout and triple-well resistive body- floating techniques. The prototypes have been demonstrated in state-of-the-art 130nm CMOS technology.
Author: Faquir C Jain
Publisher: World Scientific
ISBN: 9813232358
Category : Technology & Engineering
Languages : en
Pages : 206
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Book Description
This book features the selected articles from the 25th annual symposiums Connecticut Microelectronics and Optoelectronics Consortium (CMOC), that focus on micro/nano-electronics and optoelectronics/Nano-photonics, to cover not only the technologies, but also the applications ranging from biosensors/nano-biosystems, to cyber security.Enabling materials research involving growth and characterization of novel devices such as multi-bit nonvolatile random access memory with fast erase, high performance circuits, and their potential applications in developing new high-speed systems. Other articles focus on emerging nanoelectronic devices including topological insulators, spatial wavefunction switching (SWS) FETs as compact high-speed 2-bit SRAM circuits, quantum dot channel (QDC) FETs. Fundamental work on critical layer thickness in ZnSe/GaAs and other material systems impacts electronic and photonic devise integrating mismatched layers are also reported. While another article investigates linearly graded GaAsP-GaAs system with emphasis on strain relaxation. Based on these technologies, area of analyzes multiple junction solar cells using semiconductors with different energy gaps, as a possible application were also featured; Pixel characterization of protein-based retinal implant, as well as a low-power and low-data-rate (100 kbps) fully integrated CMOS impulse radio ultra-wideband (IR-UWB) transmitter were investigated as a potential candidate for biomedical application. While other articles looked at carbon nanofibers/nanotubes for electrochemical sensing. In the area of cyber security, two articles present encrypted electron beam lithography fabricated nanostructures for authentication and nano-signatures for the identification of authentic electronic components.In summary, papers presented in this volume involve various aspects of high performance materials and devices for implementing high-speed electronic systems.
Author: Jens Masuch
Publisher: Springer Science & Business Media
ISBN: 3319000985
Category : Technology & Engineering
Languages : en
Pages : 126
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Book Description
Wireless Body Area Networks (WBANs) are expected to promote new applications for the ambulatory health monitoring of chronic patients and elderly population, aiming to improve their quality of life and independence. These networks are composed by wireless sensor nodes (WSNs) used for measuring physiological variables (e.g., glucose level in blood or body temperature) or controlling therapeutic devices (e.g., implanted insulin pumps). These nodes should exhibit a high degree of energy autonomy in order to extend their battery lifetime or even make the node supply to rely on harvesting techniques. Typically, the power budget of WSNs is dominated by the wireless link and, hence, many efforts have been directed during the last years toward the implementation of power efficient transceivers. Because of the short range (typically no more than a few meters) and low data rate (typically in between 10 kb/s and 1 Mb/s), simple communication protocols can be employed. One of these protocols, specifically tailored for WBAN applications, is the Bluetooth low energy (BLE) standard. This book describes the challenges and solutions for the design of ultra-low power transceivers for WBANs applications and presents the implementation details of a BLE transceiver prototype. Coverage includes not only the main concepts and architectures for achieving low power consumption, but also the details of the circuit design and its implementation in a standard CMOS technology.
