Power Management in Mobile Devices
Power Management in Mobile Devices

Author: Findlay Shearer

Publisher: Elsevier

Published: 2011-04-01

Total Pages: 337

ISBN-13: 008055640X

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Sealed Lead Acid...Nickel Cadmium...Lithium Ion...How do you balance battery life with performance and cost?This book shows you how!Now that "mobile" has become the standard, the consumer not only expects mobility but demands power longevity in wireless devices. As more and more features, computing power, and memory are packed into mobile devices such as iPods, cell phones, and cameras, there is a large and growing gap between what devices can do and the amount of energy engineers can deliver. In fact, the main limiting factor in many portable designs is not hardware or software, but instead how much power can be delivered to the device. This book describes various design approaches to reduce the amount of power a circuit consumes and techniques to effectively manage the available power.Power Management Advice On:•Low Power Packaging Techniques•Power and Clock Gating•Energy Efficient Compilers•Various Display Technologies•Linear vs. Switched Regulators•Software Techniques and Intelligent Algorithms * Addresses power versus performance that each newly developed mobile device faces* Robust case studies drawn from the author's 30 plus years of extensive real world experience are included* Both hardware and software are discussed concerning their roles in power

Mobile Terminal Receiver Design
Mobile Terminal Receiver Design

Author: Sajal Kumar Das

Publisher: John Wiley & Sons

Published: 2017-05-01

Total Pages: 374

ISBN-13: 111910730X

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MOBILE TERMINAL RECEIVER DESIGN MOBILE TERMINAL RECEIVER DESIGN LTE and LTE-Advanced India This all-in-one guide addresses the challenges of designing innovative mobile handset solutions that offer smaller size, low power consumption, low cost, and tremendous flexibility, with improved data rates and higher performance. Readers are introduced to mobile phone system architecture and its basic building blocks, different air interface standards and operating principles, before progressing to hardware anatomy, software and protocols, and circuits for legacy and next-generation smart phones, including various research areas in 4G and 5G systems. Mobile Terminal Receiver Design/p? ulliexplains basic working principles, system architecture and specification detailsof legacy and possible next-generation mobile systems, from principle to practiceto product; covers in detail RF transmitter and receiver blocks, digital baseband processingblocks, receiver and transmitter signal processing, protocol stack, AGC, AFC, ATC,power supply, clocking; features important topics like connectivity and application modules with differentdesign solutions for tradeoff exploration; discusses multi-RAT design requirements, key design attributes such as low powerconsumption, slim form factors, seamless I-RAT handover, sensitivity, and selectivity. It will help software, hardware, and radio frequency design engineers to understand the evolution of radio access technologies and to design competitive and innovative mobile solutions and devices. Graduates, postgraduate students, and researchers in mobile telecommunications disciplines will also find this book a handy reference.

Smartphone Energy Consumption
Smartphone Energy Consumption

Author: Sasu Tarkoma

Publisher: Cambridge University Press

Published: 2014-08-07

Total Pages: 353

ISBN-13: 1139992732

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With an ever-increasing number of applications available for mobile devices, battery life is becoming a critical factor in user satisfaction. This practical guide provides you with the key measurement, modeling, and analytical tools needed to optimize battery life by developing energy-aware and energy-efficient systems and applications. As well as the necessary theoretical background and results of the field, this hands-on book also provides real-world examples, practical guidance on assessing and optimizing energy consumption, and details of prototypes and possible future trends. Uniquely, you will learn about energy optimization of both hardware and software in one book, enabling you to get the most from the available battery power. Covering experimental system design and implementation, the book supports assignment-based courses with a laboratory component, making it an ideal textbook for graduate students. It is also a perfect guidebook for software engineers and systems architects working in industry.

Green Mobile Devices and Networks
Green Mobile Devices and Networks

Author: Hrishikesh Venkataraman

Publisher: CRC Press

Published: 2016-04-19

Total Pages: 411

ISBN-13: 1466559160

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While battery capacity is often insufficient to keep up with the power-demanding features of the latest mobile devices, powering the functional advancement of wireless devices requires a revolution in the concept of battery life and recharge capability. Future handheld devices and wireless networks should be able to recharge themselves automaticall

Power Management for Wearable Electronic Devices
Power Management for Wearable Electronic Devices

Author: Dima Kilani

Publisher: Springer Nature

Published: 2020-01-17

Total Pages: 118

ISBN-13: 3030378845

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This book describes power management integrated circuits (PMIC), for power converters and voltage regulators necessary for energy efficient and small form factor systems. The authors discuss state-of-the-art PMICs not only for battery powered wearable devices, but also energy harvesting-based devices. The circuits presented support voltage scaling to reduce the overall average power consumption of a wearable device, resulting in longer device operating time. The discussion includes many designs, control techniques and approaches to distribute efficiently the power among different blocks in the device. • Demonstrates for readers how to innovate in designing power management integrated circuits (PMIC) suitable for wearable devices, powered by either battery or harvesting energy; • Introduces a dual outputs switched capacitor, using a single voltage regulator to minimize the area overhead and discusses the effect of having more than two outputs on the area and power efficiency; • Introduces a novel clock-less digital LDO regulator that eliminates the use of the clocked comparator and serial shift register in the conventional design; • Presents experimental results of energy harvesting-based power management units (PMU), using different combinations of power converters and voltage regulators, providing a guide for designers to select the appropriate option based on device requirements.

Handbook of Algorithms for Wireless Networking and Mobile Computing
Handbook of Algorithms for Wireless Networking and Mobile Computing

Author: Azzedine Boukerche

Publisher: CRC Press

Published: 2005-11-28

Total Pages: 1042

ISBN-13: 1420035096

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The Handbook of Algorithms for Wireless Networking and Mobile Computing focuses on several aspects of mobile computing, particularly algorithmic methods and distributed computing with mobile communications capability. It provides the topics that are crucial for building the foundation for the design and construction of future generations of mobile and wireless networks, including cellular, wireless ad hoc, sensor, and ubiquitous networks. Following an analysis of fundamental algorithms and protocols, the book offers a basic overview of wireless technologies and networks. Other topics include issues related to mobility, aspects of QoS provisioning in wireless networks, future applications, and much more.

TELECOMMUNICATION SYSTEMS AND TECHNOLOGIES-Volume II
TELECOMMUNICATION SYSTEMS AND TECHNOLOGIES-Volume II

Author: Paolo Bellavista

Publisher: EOLSS Publications

Published: 2009-10-17

Total Pages: 422

ISBN-13: 1848260016

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Telecommunication Systems and Technologies theme is a component of Encyclopedia of Physical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Telecommunication systems are emerging as the most important infrastructure asset to enable business, economic opportunities, information distribution, culture dissemination and cross-fertilization, and social relationships. As any crucial infrastructure, its design, exploitation, maintenance, and evolution require multi-faceted know-how and multi-disciplinary vision skills. The theme is structured in four main topics: Fundamentals of Communication and Telecommunication Networks; Telecommunication Technologies; Management of Telecommunication Systems/Services; Cross-Layer Organizational Aspects of Telecommunications, which are then expanded into multiple subtopics, each as a chapter. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs

Dynamics in Logistics
Dynamics in Logistics

Author: Michael Freitag

Publisher: Springer

Published: 2016-09-15

Total Pages: 486

ISBN-13: 3319451170

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These proceedings contain research papers presented at the 5th International Conference on Dynamics in Logistics, held in Bremen, Germany, February 2016. The conference is concerned with dynamic aspects of logistic processes and networks. The spectrum of topics reaches from modeling, planning and control of processes over supply chain management and maritime logistics to innovative technologies and robotic applications for cyber-physical production and logistic systems. The growing dynamic confronts the area of logistics with completely new challenges: it must become possible to describe, identify and analyze the process changes. Moreover, logistic processes and networks must be redevised to be rapidly and flexibly adaptable to continuously changing conditions. The book primarily addresses researchers and practitioners from the field of industrial engineering and logistics, but it may also be beneficial for graduate students.

Mobile Computing, Applications, and Services
Mobile Computing, Applications, and Services

Author: David Uhler

Publisher: Springer

Published: 2013-02-05

Total Pages: 435

ISBN-13: 3642366325

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This book constitutes the thoroughly refereed post-conference proceedings of the Fourth International Conference on Mobile Computing, Applications, and Services (MobiCASE 2012) held in Seattle, Washington, USA, in October 2012. The 18 revised full papers presented together with 9 revised poster papers were carefully reviewed and selected from 51 submissions. The conference papers are organized in five topical sections, covering mobile application development, multi-dimensional interactions, system support and architecture, mobile applications, and mobile services.

Design of Power Management Integrated Circuits
Design of Power Management Integrated Circuits

Author: Bernhard Wicht

Publisher: John Wiley & Sons

Published: 2024-05-14

Total Pages: 484

ISBN-13: 1119123089

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Design of Power Management Integrated Circuits Comprehensive resource on power management ICs affording new levels of functionality and applications with cost reduction in various fields Design of Power Management Integrated Circuits is a comprehensive reference for power management IC design, covering the circuit design of main power management circuits like linear and switched-mode voltage regulators, along with sub-circuits such as power switches, gate drivers and their supply, level shifters, the error amplifier, current sensing, and control loop design. Circuits for protection and diagnostics, as well as aspects of the physical design like lateral and vertical power delivery, pin-out, floor planning, grounding/supply guidelines, and packaging, are also addressed. A full chapter is dedicated to the design of integrated passives. The text illustrates the application of power management integrated circuits (PMIC) to growth areas like computing, the Internet of Things, mobility, and renewable energy. Includes numerous real-world examples, case studies, and exercises illustrating key design concepts and techniques. Offering a unique insight into this rapidly evolving technology through the author’s experience developing PMICs in both the industrial and academic environment, Design of Power Management Integrated Circuits includes information on: Capacitive, inductive and hybrid DC-DC converters and their essential circuit blocks, covering error amplifiers, comparators, and ramp generators Sensing, protection, and diagnostics, covering thermal protection, inductive loads and clamping structures, under-voltage, reference and power-on reset generation Integrated MOS, MOM and MIM capacitors, integrated inductors Control loop design and PWM generation ensuring stability and fast transient response; subharmonic oscillations in current mode control (analysis and circuit design for slope compensation) DC behavior and DC-related circuit design, covering power efficiency, line and load regulation, error amplifier, dropout, and power transistor sizing Commonly used level shifters (including sizing rules) and cascaded (tapered) driver sizing and optimization guidelines Optimizing the physical design considering packaging, floor planning, EMI, pinout, PCB design and thermal design Design of Power Management Integrated Circuits is an essential resource on the subject for circuit designers/IC designers, system engineers, and application engineers, along with advanced undergraduate students and graduate students in related programs of study.