Download or read book Fully Integrated Ultra low Power Mm wave Wireless Sensor Design Methods written by H. Gao and published by . This book was released on 2015 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Batteryless mm Wave Wireless Sensors written by Hao Gao and published by Springer. This book was released on 2018-01-09 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the PREMISS system, which enables readers to overcome the limitations of state-of-the-art battery-less wireless sensors in size, cost, robustness and range, with a system concept for a 60 GHz wireless sensor system with monolithic sensors. The authors demonstrate a system in which the wireless sensors consist of wireless power receiving, sensing and communication functions in a single chip, without external components, avoiding costly IC-interfaces that are sensitive to mechanical and thermal stress.
Download or read book Temperature and Supply Voltage Independent Time References for Wireless Sensor Networks written by Valentijn De Smedt and published by Springer. This book was released on 2014-11-07 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the possible circuit solutions to overcome the temperature and supply voltage-sensitivity of fully-integrated time references for ultra-low-power communication in wireless sensor networks. The authors provide an elaborate theoretical introduction and literature study to enable full understanding of the design challenges and shortcomings of current oscillator implementations. Furthermore, a closer look to the short-term as well as the long-term frequency stability of integrated oscillators is taken. Next, a design strategy is developed and applied to 5 different oscillator topologies and 1 sensor interface. All 6 implementations are subject to an elaborate study of frequency stability, phase noise and power consumption. In the final chapter all blocks are compared to the state of the art.
Download or read book Low Power Emerging Wireless Technologies written by Reza Mahmoudi and published by CRC Press. This book was released on 2017-07-12 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced concepts for wireless communications offer a vision of technology that is embedded in our surroundings and practically invisible, but present whenever required. Although the use of deep submicron CMOS processes allows for an unprecedented degree of scaling in digital circuitry, it complicates the implementation and integration of traditional RF circuits. The requirement for long operating life under limited energy supply also poses severe design constraints, particularly in critical applications in commerce, healthcare, and security. These challenges call for innovative design solutions at the circuit and system levels. Low Power Emerging Wireless Technologies addresses the crucial scientific and technological challenges for the realization of fully integrated, highly efficient, and cost-effective solutions for emerging wireless applications. Get Insights from the Experts on Wireless Circuit Design The book features contributions by top international experts in wireless circuit design representing both industry and academia. They explore the state of the art in wireless communication for 3G and 4G cellular networks, millimeter-wave applications, wireless sensor networks, and wireless medical technologies. The emphasis is on low-power wireless applications, RF building blocks for wireless applications, and short-distance and beam steering. Topics covered include new opportunities in body area networks, medical implants, satellite communications, automobile radar detection, and wearable electronics. Exploit the Potential behind Emerging Green Wireless Technologies A must for anyone serious about future wireless technologies, this multidisciplinary book discusses the challenges of emerging power-efficient applications. Written for practicing engineers in the wireless communication field who have some experience in integrated circuits, it is also a valuable resource for graduate students.
Download or read book Secure Sensor Cloud written by Vimal Kumar and published by Morgan & Claypool Publishers. This book was released on 2018-12-17 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sensor cloud is a new model of computing paradigm for Wireless Sensor Networks (WSNs), which facilitates resource sharing and provides a platform to integrate different sensor networks where multiple users can build their own sensing applications at the same time. It enables a multi-user on-demand sensory system, where computing, sensing, and wireless network resources are shared among applications. Therefore, it has inherent challenges for providing security and privacy across the sensor cloud infrastructure. With the integration of WSNs with different ownerships, and users running a variety of applications including their own code, there is a need for a risk assessment mechanism to estimate the likelihood and impact of attacks on the life of the network. The data being generated by the wireless sensors in a sensor cloud need to be protected against adversaries, which may be outsiders as well as insiders. Similarly, the code disseminated to the sensors within the sensor cloud needs to be protected against inside and outside adversaries. Moreover, since the wireless sensors cannot support complex and energy-intensive measures, the lightweight schemes for integrity, security, and privacy of the data have to be redesigned. The book starts with the motivation and architecture discussion of a sensor cloud. Due to the integration of multiple WSNs running user-owned applications and code, the possibility of attacks is more likely. Thus, next, we discuss a risk assessment mechanism to estimate the likelihood and impact of attacks on these WSNs in a sensor cloud using a framework that allows the security administrator to better understand the threats present and take necessary actions. Then, we discuss integrity and privacy preserving data aggregation in a sensor cloud as it becomes harder to protect data in this environment. Integrity of data can be compromised as it becomes easier for an attacker to inject false data in a sensor cloud, and due to hop by hop nature, privacy of data could be leaked as well. Next, the book discusses a fine-grained access control scheme which works on the secure aggregated data in a sensor cloud. This scheme uses Attribute Based Encryption (ABE) to achieve the objective. Furthermore, to securely and efficiently disseminate application code in sensor cloud, we present a secure code dissemination algorithm which first reduces the amount of code to be transmitted from the base station to the sensor nodes. It then uses Symmetric Proxy Re-encryption along with Bloom filters and Hash-based Message Authentication Code (HMACs) to protect the code against eavesdropping and false code injection attacks.
Download or read book Ultra low Power Wireless Technologies for Sensor Networks written by Brian Otis and published by . This book was released on 2005 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mobility based Time References for Wireless Sensor Networks written by Fabio Sebastiano and published by Springer Science & Business Media. This book was released on 2012-08-09 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the use of low-power low-cost and extremely small radios to provide essential time reference for wireless sensor networks. The authors explain how to integrate such radios in a standard CMOS process to reduce both cost and size, while focusing on the challenge of designing a fully integrated time reference for such radios. To enable the integration of the time reference, system techniques are proposed and analyzed, several kinds of integrated time references are reviewed, and mobility-based references are identified as viable candidates to provide the required accuracy at low-power consumption. Practical implementations of a mobility-based oscillator and a temperature sensor are also presented, which demonstrate the required accuracy over a wide temperature range, while drawing 51-uW from a 1.2-V supply in a 65-nm CMOS process.
Download or read book Wireless Transceiver Circuits written by Woogeun Rhee and published by CRC Press. This book was released on 2018-09-03 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern transceiver systems require diversified design aspects as various radio and sensor applications have emerged. Choosing the right architecture and understanding interference and linearity issues are important for multi-standard cellular transceivers and software-defined radios. A millimeter-wave complementary metal–oxide–semiconductor (CMOS) transceiver design for multi-Gb/s data transmission is another challenging area. Energy-efficient short-range radios for body area networks and sensor networks have recently received great attention. To meet different design requirements, gaining good system perspectives is important. Wireless Transceiver Circuits: System Perspectives and Design Aspects offers an in-depth look at integrated circuit (IC) design for modern transceiver circuits and wireless systems. Ranging in scope from system perspectives to practical circuit design for emerging wireless applications, this cutting-edge book: Provides system design considerations in modern transceiver design Covers both systems and circuits for the millimeter-wave transceiver design Introduces four energy-efficient short-range radios for biomedical and wireless connectivity applications Emphasizes key building blocks in modern transceivers and transmitters, including frequency synthesizers and digital-intensive phase modulators Featuring contributions from renowned international experts in industry and academia, Wireless Transceiver Circuits: System Perspectives and Design Aspects makes an ideal reference for engineers and researchers in the area of wireless systems and circuits.
Download or read book Ultra Low Power Wireless Technologies for Sensor Networks written by Brian Otis and published by Springer Science & Business Media. This book was released on 2007-02-24 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is written for academic and professional researchers designing communication systems for pervasive and low power applications. There is an introduction to wireless sensor networks, but the main emphasis of the book is on design techniques for low power, highly integrated transceivers. Instead of presenting a single design perspective, this book presents the design philosophies from three diverse research groups, providing three completely different strategies for achieving similar goals. By presenting diverse perspectives, this book prepares the reader for the countless design decisions they will be making in their own designs.
Download or read book Intelligent Assistive Technologies for Dementia written by Fabrice Jotterand and published by Oxford University Press. This book was released on 2019-09-02 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The financial burden and the level of specialized care required to look after older adults with dementia has reached the point of a public health crisis. Older adults diagnosed and living with the disorder reached 35.6 million worldwide in 2010 and is expected to increase to 135.5 million in 2050, with costs soaring to $1.1 trillion. In the face of the increasing burden this disorder poses to health care systems and the management of this patient population, intelligent assistive technologies (IATs) represent a remarkable and promising strategy to meet the need of persons suffering from dementia. These technologies aim at helping individuals compensate for specific physical and cognitive deficits, and maintain a higher level of independence at home and in everyday activities. However, the rapid development and widespread implementation of these technologies are not without associated challenges at multiple levels. An international and multidisciplinary group of authors provide future-oriented and in-depth analysis of IATs. Part I delineates the current landscape of intelligent assistive technologies for dementia care and age-related disability from a global perspective, while the contributions in Part II analyze and address the major psycho-social implications linked to the development and clinical use of IATs. In the last section, essays examine the major ethical, social and regulatory issues associated with the use of IATs in dementia care. This volume provides an authoritative and comprehensive overview of how IATs are reshaping dementia care.
Download or read book Ultra low Energy Architectures and Circuits for Cubic Millimeter Distributed Wireless Sensor Networks written by Brett Alan Warneke and published by . This book was released on 2003 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultra Low Power RFIC Solutions for Wireless Sensor Networks written by Hassen Kraimia and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their emergence, Wireless Sensor Networks (WSN) have been growing continually becoming a key player in many applications such as military tracking, remote monitoring, bio-sensing and home automation. These networks are based on IEEE 802.15.4 standard which is dedicated to low rate wireless personal area networks (LR-WPANs) in the unlicensed radio band (868MHz/915MHz/2.4GHz). Low power consumption, low cost of implementation and high level of integration are the main challenges of these systems. As radio frequency transceiver is one of the most power hungry block in wireless sensor node, power consumption of radio frequency front-end (RFFE) must be reduced. To deal with, several approaches are possible, either at circuit level by investigating operating modes of transistors and merging functionalities or at system level by searching novel demodulation architecture. This thesis explores the specific requirements and challenges for the design of ultra-low power radio frequency integrated circuits (RFICs), leading to the design of a compact demodulator implemented in 65 nm CMOS technology and compatible with all modulation schemes.
Download or read book Nanometer CMOS written by Frank Schwierz and published by Pan Stanford Publishing. This book was released on 2010-02-28 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the material necessary for understanding the physics, operation, design, and performance of modern MOSFETs with nanometer dimensions. Other topics covered include high-k dielectrics and mobility enhancement techniques, MOSFETs for RF (radio frequency) applications, MOSFET fabrication technology.
Download or read book Design of Ultra low Power Energy Harvesting and Sensor Interfacing Circuits for Miniaturized Wireless Sensor Nodes written by Naser Khosro Pour and published by . This book was released on 2014 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultra Low Power FM UWB Transceivers for IoT written by Vladimir Kopta and published by CRC Press. This book was released on 2022-09-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades we have witnessed the increasing popularity of the internet of things. The vision of billions of connected objects, able to interact with their environment, is the key driver directing the development of future communication devices. Today, power consumption as well as the cost and size of radios remain some of the key obstacles towards fulfilling this vision. Ultra-Low Power FM-UWB Transceivers for IoT presents the latest developments in the field of low power wireless communication. It promotes the FM-UWB modulation scheme as a candidate for short range communication in different IoT scenarios. The FM-UWB has the potential to provide exactly what is missing today. This spread spectrum technique enables significant reduction in transceiver complexity, making it smaller, cheaper and more energy efficient than most alternative options. The book provides an overview of both circuit-level and architectural techniques used in low power radio design, with a comprehensive study of state-of-the-art examples. It summarizes key theoretical aspects of FM-UWB with a glimpse at potential future research directions. Finally, it gives an insight into a full FM-UWB transceiver design, from system level specifications down to transistor level design, demonstrating the modern power reduction circuit techniques. Ultra-Low Power FM-UWB Transceivers for IoT is a perfect text and reference for engineers working in RF IC design and wireless communication, as well as academic staff and graduate students engaged in low power communication systems research.
Download or read book Ultra Low power Wireless Sensor Demonstration System written by Ketan Kumar Balubhai Patel and published by . This book was released on 2000 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Circuit Design to Enable Quartz Free Miniature Wireless Sensing Systems written by Kannan Sankaragomathi and published by . This book was released on 2015 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging technologies such as Internet of Things (IOT) and Wireless Body Area Network (WBAN) demand wireless sensors with ultra low power consumption, low cost and previously impossible form factors. Moore's law is exponentially scaling down the size of CMOS circuits making them faster and cheaper. However, frequency references, antennas and power sources which are essential for wireless sensors do not benefit from such scaling. These components are increasingly becoming a bottleneck in achieving size/cost/power reduction in wireless sensors. Quartz crystal is the most commonly used frequency reference in radios. Quartz crystal is bulky, needs a complicated manufacturing process increasing cost and does not yield itself to integration with CMOS circuits. This has prompted circuit designers to look for MEMS based alternatives to Quartz crystals. While MEMS resonators are successfully replacing quartz in timing applications, a quartz alternative with stability / power consumption suitable for radio applications has not been reported so far. The first part of this thesis addresses this problem and develops circuits and systems to demonstrate an FBAR (thin-Film Bulk-Acoustic-Resonator) based quartz replacement. Circuit solutions to improve phase noise and temperature stability of FBAR oscillators are discussed. These efforts culminate in a 750 MHz FBAR frequency reference with a ± 3 ppm stability and 1.1 mW power consumption. The second part of the thesis addresses the challenge of power delivery to miniature subcutaneous sensors. At mm scale inductive power transfer efficiencies drop below 0.1 %. In applications where the implant is just below the skin optical powering becomes a viable option due to high transmission of skin at infrared wavelengths. We demonstrate an operational mm scale tag with optical power and data links across a pig skin barrier.
