Mohamed I. Elmasry

“Wireless is coming” was the message received by VLSI designers in the early 1990’s. They believed it. But they never imagined that the wireless wave would be coming with such intensity and speed. Today one of the most challenging areas for VLSI designers is VLSI circuit and system design for wireless applications. New generation of wireless systems, which includes multimedia, put severe constraints on performance, cost, size, power and energy. The challenge is immense and the need for new generation of VLSI designers, who are fluent in wireless communication and are masters of mixed signal design, is great. No single text or reference book contains the necessary material to educate such needed new generation of VLSIdesigners. There are gaps. Excellent books exist on communication theory and systems, including wireless applications and others treat well basic digital, analog and mixed signal VLSI design. We feel that this book is the first of its kind to fill that gap. In the first half of this book we offer the reader (the VLSI designer) enough material to understand wireless communication systems. We start with a historical account. And then we present an overview of wireless communication systems. This is followed by detailed treatment of related topics; the mobile radio, digital modulation and schemes, spread spectrum and receiver architectures. The second half of the book deals with VLSI design issues related to mixed-signal design. These include analog-to-digital conversion, transceiver design, digital low-power techniques, amplifier design, phase locked loops and frequency synthesizers.

Dementia is one of the greatest health crises of our time, impacting millions of lives worldwide. But what if you could take control of your future and reduce your risk of cognitive decline?In Dementia: Evidence-based Lifestyle Guidelines, Dr. Kareem A. Bannis and Professor Mohamed I. Elmasry combine cutting-edge medical research with practical lifestyle strategies to help you protect your brain health. Drawing from decades of expertise in geriatric medicine, neuroscience, and artificial intelligence, they present a groundbreaking approach to preventing and managing dementia through physical, mental, and spiritual well-being.This book isn't just about science-it's about real people, real experiences, and real solutions. Whether you're caring for a loved one with dementia, seeking to understand memory changes, or looking for ways to improve your long-term health, Dementia offers clear, actionable guidance. Through a holistic lens, the authors cover the impact of diet, exercise, stress, sleep, social connections, and even spirituality on cognitive function.With an accessible style, expert insights, and a user-friendly self-assessment questionnaire, Dementia: Evidence-based Lifestyle Guidelines empowers you to make informed choices today for a healthier tomorrow. Your brain is your most valuable asset-this book will help you protect it for years to come.

Dementia is one of the greatest health crises of our time, impacting millions of lives worldwide. But what if you could take control of your future and reduce your risk of cognitive decline?In Dementia: Evidence-based Lifestyle Guidelines, Dr. Kareem A. Bannis and Professor Mohamed I. Elmasry combine cutting-edge medical research with practical lifestyle strategies to help you protect your brain health. Drawing from decades of expertise in geriatric medicine, neuroscience, and artificial intelligence, they present a groundbreaking approach to preventing and managing dementia through physical, mental, and spiritual well-being.This book isn't just about science-it's about real people, real experiences, and real solutions. Whether you're caring for a loved one with dementia, seeking to understand memory changes, or looking for ways to improve your long-term health, Dementia offers clear, actionable guidance. Through a holistic lens, the authors cover the impact of diet, exercise, stress, sleep, social connections, and even spirituality on cognitive function.With an accessible style, expert insights, and a user-friendly self-assessment questionnaire, Dementia: Evidence-based Lifestyle Guidelines empowers you to make informed choices today for a healthier tomorrow. Your brain is your most valuable asset-this book will help you protect it for years to come.

Why has so much of our recent attention been focused on AI while RI (Real Intelligence) is all but forgotten? And why are we spending so much energy debating the future of AI rather than that of its human original? Why can’t those who are concerned about AI and those who care about RI talk to one another using a common language?iMind: Artificial and Real Intelligenceis the first comprehensive popular science account of AI and RI. Unique in scope, it discusses the interdisciplinary science of AI, RI, smartphones, smart sensors, microchips, and the brain-mind connection. It explores what is beyond the physical, including mindfulness and spirituality, and how they can impact our wellbeing in the here and now, and how they can help us achieve a healthy and fulfilling old age.Mohamed I. Elmasry, PhD, FIEEE, FRSC, FCAE, FEIC, is Emeritus Professor of Computer Engineering at the University of Waterloo.

Why has so much of our recent attention been focused on AI while RI (Real Intelligence) is all but forgotten? And why are we spending so much energy debating the future of AI rather than that of its human original? Why can’t those who are concerned about AI and those who care about RI talk to one another using a common language?iMind: Artificial and Real Intelligenceis the first comprehensive popular science account of AI and RI. Unique in scope, it discusses the interdisciplinary science of AI, RI, smartphones, smart sensors, microchips, and the brain-mind connection. It explores what is beyond the physical, including mindfulness and spirituality, and how they can impact our wellbeing in the here and now, and how they can help us achieve a healthy and fulfilling old age.Mohamed I. Elmasry, PhD, FIEEE, FRSC, FCAE, FEIC, is Emeritus Professor of Computer Engineering at the University of Waterloo.

“Wireless is coming” was the message received by VLSI designers in the early 1990’s. They believed it. But they never imagined that the wireless wave would be coming with such intensity and speed. Today one of the most challenging areas for VLSI designers is VLSI circuit and system design for wireless applications. New generation of wireless systems, which includes multimedia, put severe constraints on performance, cost, size, power and energy. The challenge is immense and the need for new generation of VLSI designers, who are fluent in wireless communication and are masters of mixed signal design, is great. No single text or reference book contains the necessary material to educate such needed new generation of VLSIdesigners. There are gaps. Excellent books exist on communication theory and systems, including wireless applications and others treat well basic digital, analog and mixed signal VLSI design. We feel that this book is the first of its kind to fill that gap. In the first half of this book we offer the reader (the VLSI designer) enough material to understand wireless communication systems. We start with a historical account. And then we present an overview of wireless communication systems. This is followed by detailed treatment of related topics; the mobile radio, digital modulation and schemes, spread spectrum and receiver architectures. The second half of the book deals with VLSI design issues related to mixed-signal design. These include analog-to-digital conversion, transceiver design, digital low-power techniques, amplifier design, phase locked loops and frequency synthesizers.

High-Performance Digital VLSI Circuit Design is the first book devoted entirely to the design of digital high-performance VLSI circuits. CMOS, BiCMOS and bipolar ciruits are covered in depth, including state-of-the-art circuit structures. Recent advances in both the computer and telecommunications industries demand high-performance VLSI digital circuits. Digital processing of signals demands high-speed circuit techniques for the GHz range. The design of such circuits represents a great challenge; one that is amplified when the power supply is scaled down to 3.3 V. Moreover, the requirements of low-power/high-performance circuits adds an extra dimension to the design of such circuits. High-Performance Digital VLSI Circuit Design is a self-contained text, introducing the subject of high-performance VLSI circuit design and explaining the speed/power tradeoffs. The first few chapters of the book discuss the necessary background material in the area of device design and device modeling, respectively. High-performance CMOS circuits are then covered, especially the new all-N-logic dynamic circuits. Propagation delay times of high-speed bipolar CML and ECL are developed analytically to give a thorough understanding of various interacting process, device and circuit parameters. High-current phenomena of bipolar devices are also addressed as these devices typically operate at maximum currents for limited device area. Different, new, high-performance BiCMOS circuits are presented and compared to their conventional counterparts. These new circuits find direct applications in the areas of high-speed adders, frequency dividers, sense amplifiers, level-shifters, input/output clock buffers and PLLs. The book concludes with a few system application examples of digital high-performance VLSI circuits. Audience: A vital reference for practicing IC designers. Can be used as a text for graduate and senior undergraduate students in the area.

Although research in architectural synthesis has been conducted for over ten years it has had very little impact on industry. This in our view is due to the inability of current architectural synthesizers to provide area-delay competitive (or "optimal") architectures, that will support interfaces to analog, asynchronous, and other complex processes. They also fail to incorporate testability. The OASIC (optimal architectural synthesis with interface constraints) architectural synthesizer and the CATREE (computer aided trees) synthesizer demonstrate how these problems can be solved. Traditionally architectural synthesis is viewed as NP hard and there­ fore most research has involved heuristics. OASIC demonstrates by using an IP approach (using polyhedral analysis), that most input algo­ rithms can be synthesized very fast into globally optimal architectures. Since a mathematical model is used, complex interface constraints can easily be incorporated and solved. Research in test incorporation has in general been separate from syn­ thesis research. This is due to the fact that traditional test research has been at the gate or lower level of design representation. Nevertheless as technologies scale down, and complexity of design scales up, the push for reducing testing times is increased. On way to deal with this is to incorporate test strategies early in the design process. The second half of this text examines an approach for integrating architectural synthesis with test incorporation. Research showed that test must be considered during synthesis to provide good architectural solutions which minimize Xlll area delay cost functions.

Digital BiCMOS Integrated Circuit Design is the first book devoted entirely to the analysis and design of digital BiCMOS integrated circuits. BiCMOS Integrated Circuit Design also reviews CMOS and CML integrated circuit design. The application of BiCMOS in the design of digital subsystems, e.g. adders, multipliers, RAMs and PLAs is addressed. The book also introduces the reader to IC process technology: CMOS, bipolar and BiCMOS. The modeling of both the bipolar and MOS devices are covered. Many process/device/circuit design issues are discussed. Digital BiCMOS Integrated Circuit Design can be used by engineers, researchers, graduate and senior undergraduate students working in the area of digital integrated circuits, digital circuits and system design, BiCMOS process and device modeling.

Advanced Low-Power Digital Circuit Techniques presents several novel high performance digital circuit designs that emphasize low-power and low-voltage operation. These circuits represent a wide range of circuits that are used in state-of-the-art VLSI systems and hence serve as good examples for low-power design. Each chapter contains a brief introduction that serves as a quick background and gives the motivation behind the design. Each chapter also ends with a summary that briefly explains the contributions contained therein. This makes the book very readable. The reader can skim through the chapters very quickly to get a feel for the design problems presented in the book and the solutions proposed by the authors. Examples of circuits used in systems where low-power is important from reliability and portability points of view (such as general-purpose and DSP processors) are presented in Chapters 2, 3 and 4. Chapters 5 and 7 give examples of circuits used in systems where reliability and more system integration are the main driving forces behind lowering the power consumption. Chapter 6 gives an example of a general purpose high-performance low-power circuit design. Advanced Low-Power Digital Circuit Techniques is a real designer's book. It investigates alternative circuit styles, as well as architectural alternatives, and gives quantitative results for comparison in realistic technologies. Several of the circuits presented have been fabricated so that simulations can be checked. The circuits covered are the most important building blocks for many designs, so the text will be of direct use to designers. MOS designs are covered, as well as BiCMOS, and there are several novel circuits.

Advanced Low-Power Digital Circuit Techniques presents several novel high performance digital circuit designs that emphasize low-power and low-voltage operation. These circuits represent a wide range of circuits that are used in state-of-the-art VLSI systems and hence serve as good examples for low-power design. Each chapter contains a brief introduction that serves as a quick background and gives the motivation behind the design. Each chapter also ends with a summary that briefly explains the contributions contained therein. This makes the book very readable. The reader can skim through the chapters very quickly to get a feel for the design problems presented in the book and the solutions proposed by the authors. Examples of circuits used in systems where low-power is important from reliability and portability points of view (such as general-purpose and DSP processors) are presented in Chapters 2, 3 and 4. Chapters 5 and 7 give examples of circuits used in systems where reliability and more system integration are the main driving forces behind lowering the power consumption. Chapter 6 gives an example of a general purpose high-performance low-power circuit design. Advanced Low-Power Digital Circuit Techniques is a real designer's book. It investigates alternative circuit styles, as well as architectural alternatives, and gives quantitative results for comparison in realistic technologies. Several of the circuits presented have been fabricated so that simulations can be checked. The circuits covered are the most important building blocks for many designs, so the text will be of direct use to designers. MOS designs are covered, as well as BiCMOS, and there are several novel circuits.

High-Performance Digital VLSI Circuit Design is the first book devoted entirely to the design of digital high-performance VLSI circuits. CMOS, BiCMOS and bipolar ciruits are covered in depth, including state-of-the-art circuit structures. Recent advances in both the computer and telecommunications industries demand high-performance VLSI digital circuits. Digital processing of signals demands high-speed circuit techniques for the GHz range. The design of such circuits represents a great challenge; one that is amplified when the power supply is scaled down to 3.3 V. Moreover, the requirements of low-power/high-performance circuits adds an extra dimension to the design of such circuits. High-Performance Digital VLSI Circuit Design is a self-contained text, introducing the subject of high-performance VLSI circuit design and explaining the speed/power tradeoffs. The first few chapters of the book discuss the necessary background material in the area of device design and device modeling, respectively. High-performance CMOS circuits are then covered, especially the new all-N-logic dynamic circuits. Propagation delay times of high-speed bipolar CML and ECL are developed analytically to give a thorough understanding of various interacting process, device and circuit parameters. High-current phenomena of bipolar devices are also addressed as these devices typically operate at maximum currents for limited device area. Different, new, high-performance BiCMOS circuits are presented and compared to their conventional counterparts. These new circuits find direct applications in the areas of high-speed adders, frequency dividers, sense amplifiers, level-shifters, input/output clock buffers and PLLs. The book concludes with a few system application examples of digital high-performance VLSI circuits. Audience: A vital reference for practicing IC designers. Can be used as a text for graduate and senior undergraduate students in the area.

Digital BiCMOS Integrated Circuit Design is the first book devoted entirely to the analysis and design of digital BiCMOS integrated circuits. BiCMOS Integrated Circuit Design also reviews CMOS and CML integrated circuit design. The application of BiCMOS in the design of digital subsystems, e.g. adders, multipliers, RAMs and PLAs is addressed. The book also introduces the reader to IC process technology: CMOS, bipolar and BiCMOS. The modeling of both the bipolar and MOS devices are covered. Many process/device/circuit design issues are discussed. Digital BiCMOS Integrated Circuit Design can be used by engineers, researchers, graduate and senior undergraduate students working in the area of digital integrated circuits, digital circuits and system design, BiCMOS process and device modeling.

Although research in architectural synthesis has been conducted for over ten years it has had very little impact on industry. This in our view is due to the inability of current architectural synthesizers to provide area-delay competitive (or "optimal") architectures, that will support interfaces to analog, asynchronous, and other complex processes. They also fail to incorporate testability. The OASIC (optimal architectural synthesis with interface constraints) architectural synthesizer and the CATREE (computer aided trees) synthesizer demonstrate how these problems can be solved. Traditionally architectural synthesis is viewed as NP hard and there­ fore most research has involved heuristics. OASIC demonstrates by using an IP approach (using polyhedral analysis), that most input algo­ rithms can be synthesized very fast into globally optimal architectures. Since a mathematical model is used, complex interface constraints can easily be incorporated and solved. Research in test incorporation has in general been separate from syn­ thesis research. This is due to the fact that traditional test research has been at the gate or lower level of design representation. Nevertheless as technologies scale down, and complexity of design scales up, the push for reducing testing times is increased. On way to deal with this is to incorporate test strategies early in the design process. The second half of this text examines an approach for integrating architectural synthesis with test incorporation. Research showed that test must be considered during synthesis to provide good architectural solutions which minimize Xlll area delay cost functions.