Ramjee Prasad – författare

A broad overview of the home networking field, ranging from wireless technologies to practical applicationsIn the future, it is expected that private networks (e.g., home networks) will become part of the global network ecosystem, participating in sharing their own content, running IP-based services, and possibly becoming service providers themselves. This is already happening in the so-called "social networks" and peer-to-peer file sharing networks on the Internet—making this emerging topic one of the most active research areas in the wireless communications field.This book bridges the gap between wireless networking and service research communities, which, until now, have confined their work to their respective fields. Here, a number of industry professionals and academic experts have contributed chapters on various aspects of the subject to present an overview of home networking technologies with a special emphasis on the user as the center of all activities. Coverage includes: Networked home use cases and scenariosMedia format, media exchange, and media interoperabilityLocation-aware device and service discoverySecurity in smart homesSecure service discovery protocol implementation for wireless ad-hoc networksMultimedia content protection in consumer networksMobile device connectivity in home networksUnlicensed mobile access/generic access networkWireless sensor networks in the homeUltra-wideband and sensor networking in the home environmentWith a balanced mix of practice and theory, Technologies for Home Networking focuses on the latest technologies for speedier, more reliable wireless networking and explains how to facilitate workable end-to-end solutions from a user's perspective. This book is an ideal resource for practicing engineers, designers, and managers with an interest in home networking and also serves as a valuable text for graduate students.

Giving a basic overview of the technologies supporting cognitive radio this introductory-level text follows a logical approach, starting with the physical layer and concluding with applications and general issues. It provides a background to advances in the field of cognitive radios and a new exploration of how these radios can work together as a network. Cognitive Radio Networks starts with an introduction to the fundamentals of wireless communications, introducing technologies such as OFDM & MIMO. It moves onto cover software defined radio and explores and contrasts wireless, cooperative and cognitive networks and communications. Spectrum sensing, medium access control and network layer design are examined before the book concludes by covering the topics of trusted cognitive radio networks and spectrum management. Unique in providing a brief but clear tutorial and reference to cognitive radio networks this book is a single reference, written at the appropriate level for newcomers as well as providing an encompassing text for those with more knowledge of the subject. One of the first books to provide a systematic description of cognitive radio networksProvides pervasive background knowledge including both wireless communications and wireless networksWritten by leading experts in the fieldFull network stack investigation

A study of OFDM, including a comparison with other forms of single carrier modulation methods. It provides the design guidelines needed to maximise benefits from this technology. There is practical advice on how to plan, design and use OFDM to make wireless multimedia communications happen. It offers a solid base for assessing the performance of wireless OFDM systems; explains how OFDM signals are formed using the Inverse Fast Fourier Transform, how the cyclic extension mitigates the effects of modulation, and how windowing can limit out-of-band radiation; discusses the sensitivity of OFDM to synchronization errors; examines the basics of direct sequence and frequency hopping CMDA, helpful in understanding combinations of OFDM and CDMA; explains Multicarrier CDMA, various transmitter architectures, and the pros and cons compared to other CDMA techniques; and includes a discussion of the combination of OFDM and frequency hopping CDMA to get a multiple access system with similar advantages to direct sequence CDMA.

This text evaluates wideband CDMA as an effective third generation technology option, giving a picture of the various wideband CDMA standardization activities underway worldwide in the late 1990s. The book compares a range of CDMA design techniques and examines how each affects system performance. It also describes how third generation system applications will impact radio access system design and compares and contrasts each major wideband CDMA standardization proposal currently on the table, including FRAMES wideband CDMA in Europe, Core-A in Japan, wideband IS-95 in the US, and wideband CDMA in Korea. It identifies and describes various air interface access schemes for third and fourth generation mobile communications systems; analyzes wideband CDMA performance in varying radio environments; and discusses the integration of the GSM core network with wideband CDMA.

This book approaches the topic area of the Internet of Things (IoT) from the perspective of the five types of human communication. Through this perspective on the human communication types, the book aims to specifically address how IoT technologies can support humans and their endeavors. The book explores the fields of sensors, wireless, physiology, biology, wearables, and the Internet. This book is organized with five sections, each covering a central theme;Section 1: The basics of human bond communicationSection 2: Relevance IoT, BAN and PANSection 3: Applications of HBCSection 4: Security, Privacy and Regulatory ChallengesSection 5: The Big Picture (Where do we go from here?)

Ad-Hoc Networking Towards Seamless Communications is dedicated to an area that attracts growing interest in academia and industry and concentrates on wireless ad hoc networking paradigm. The persistent efforts to acquire the ability to establish dynamic wireless connections from anywhere to anyone with any device without prerequisite imbedded infrastructure move the communications boundaries towards ad-hoc networks. Recently, ad hoc networking has attracted growing interest due to advances in wireless communications, and developed framework for running IP based protocols. The expected degree of penetration of these networks will depend on the successful resolution of the key features.Ad-hoc networks pose many complex and open problems for researchers. Ad-Hoc Networking Towards Seamless Communications reveals the state-of-the-art in wireless ad-hoc networking and discusses some of the key research topics that are expected to promote and accelerate the commercial applications of these networks (e.g., MAC, routing, QoS, cross-layer optimization issues, service discovery, mobility, handovers, security).

karmano hy api boddhavyam boddhavyam ca vikarmanah akarmanas ca boddhavyam gahana karmano gatih The intricacies of action are very hard to understand. Therefore one should know properly what action is, what forbidden action is, and what inaction is. The Bhagvad Gita (4.17) This book is the outcome of the research contribution of Hanane Fathi towards her Ph.D. studies jointly with Shyam S. Chakraborty and Ramjee Prasad as - pervisors. To the best of the authors' knowledge, this is a ?rst book on voice over Internet protocol (VoIP) covering such a broad perspective as illustrated in Figure P.1. This book is a new, forward-looking resource that explores the present and future trends of VoIP in the wireless heterogeneous networks. This book also provides the discovery path that these network infrastructures are following from a perspective of synergies with the present systems and how they will pave the way for future systems. This book is intended for everyone in the ?eld of wireless information and multimedia communications. It provides different levels of material suitable for managers, researchers, network providers, and graduate students.We hope that all readers will experience the bene?ts and power of this knowledge. We have tried our best to make each chapter comprehensive and we cannot claim that this book is without errors. Any remarks to improve the text and correct the errors would be highly appreciated.

asakta-buddhih sarvatra . jitatma vigata-sprhah . . . . naiskarmya-siddhim paramam . sannyasenadhigacchati Detached by spiritual intelligence from everything controlling the mind, without material desires, one attains the paramount perfection in cessation of re- tions by renunciation. The Bhagvad Gita (18.49) Compared to traditional carrier-based, Ultra-Wide Band (UWB), or carrier-less, systems implement new paradigms in terms of signal generation and reception. Thus, designing an UWB communication system requires the understanding of how excess bandwidth and very low transmitted powers can be used jointly to provide a reliable radio link. UWB offers systems transceiver potential for very simple implementations. Comparison between UWB and traditional narrow-band systems highlights the following features: Large bandwidth enables very fine time-space resolution for accurate lo- tion of the UWB nodes and for distributing network time stamps. Very short pulses are effectively counter-fighting the channel effect in very dense multipath environments. Data rate (number of pulses transmitted per bit) can be traded with power emission control and distance coverage. Very low power density leads to low probability of signal detection and adds security for all the layers of the communication stack. Very low power density is obtained through radio regulation emission masks; UWB systems are suitable for coexistence with already deployed narrow-band systems.

This resource gives professionals a comprehensive understanding of the simulation and evaluation methods used in the design and development of today's mobile communication systems. Professionals get in-depth discussions on digital modulation techniques, transmission schemes, discusses multiple access protocols, cellular telecommunication systems, and cutting-edge software radio communication systems.

The first of a three-volume series on the latest research and developments in the field of mobile communications, this cutting-edge resource offers practical insight into the next generation of wireless systems, services, and applications. Culled from groundbreaking research associated with the Information Society Technologies (IST) program, this unique book helps professionals understand how the networks of tomorrow will evolve into a common, open platform, capable of delivering a range of voice, video, and data services in a combined and seamless manner. This forward-looking volume covers a wide-range of important topics, from the architectures of future wireless systems and the importance of short-range systems in the global communication society, to service platforms/technologies and application platforms. The DVD included contains further details on critical topics related to the research discussed in the book.

The development of new mobile multimedia services is certain to create new issues for future mobile communication systems. This second volume on the latest research and developments in the field offers a survey of the management and network optimization methods that will help you overcome the challenges that lie ahead. Like its companion volumes, research results from the Information Society Technologies (IST) program has been gathered to give you details in the most critical areas. The key topics include the management of heterogeneous and hybrid networks, advanced resource management techniques, cutting-edge radio technologies, advances in the development of satellite systems as part of a global integrated communication system, research on interactive broadcasting, and end-to-end solutions for delivery of services and guaranteed QoS. The DVD included contains further details on critical topics related to the research discussed in the book.

OFDM (Orthogonal Frequency Division Multiplexing) is a key technology which allows for robust, high capacity, high speed wireless broadband multimedia networks. Written by leading authority and best-selling author Ramjee Prasad, this timely new work offers today's wireless professionals a complete understanding of OFDM technology and applications in wireless communications systems, placing emphasis on wireless LANs (local area networks) and PANs (personal area networks). The book offers an in-depth treatment of the underlying technologies and applications of PANs and describes and evaluates a practical OFDM system concept. Invaluable for wireless engineers and researchers, this cutting edge new book is a must-have for anyone who needs to understand this critical technology and its implementation in today's wireless systems.

Based on cutting-edge research projects in the field, this comprehensive 4-volume book series provides the latest details and covers the most impactful aspects of mobile, wireless, and broadband communications development. These books present key systems and enabling technologies in a clear and accessible manner, offering you a detailed roadmap the future evolution of next generation communications. Drawing upon the insights of leading experts in the field, each of the four volumes is dedicated to an area of critical importance, including Radio Interfaces; Networks, Services and Applications; Reconfigurability; and Ad Hoc Networks.

Based on cutting-edge research projects in the field, this comprehensive 4-volume book series provides the latest details and covers the most impactful aspects of mobile, wireless, and broadband communications development. These books present key systems and enabling technologies in a clear and accessible manner, offering you a detailed roadmap the future evolution of next generation communications. Drawing upon the insights of leading experts in the field, each of the four volumes is dedicated to an area of critical importance, including Radio Interfaces; Networks, Services and Applications; Reconfigurability; and Ad Hoc Networks.

This book offers an accessible introduction and practical guide to Voice over Internet Protocol (VoIP) technology, providing readers with the know-how to solve the problems encountered in applying VoIP technology across all types of network.

This book discusses a broad range of cyber security issues, addressing global concerns regarding cyber security in the modern era.

This book discusses a broad range of cyber security issues, addressing global concerns regarding cyber security in the modern era.

These two volumes constitute the selected and revised papers presented at the Second International Conference on Communication, Networks and Computing, CNC 2022, held in Gwalior, India, in December 2022.The 53 full papers were thoroughly reviewed and selected from the 152 submissions. They focus on ​the exciting new areas of wired and wireless communication systems, high-dimensional data representation and processing, networks and information security, computing techniques for efficient networks design, vehicular technology and applications and electronic circuits for communication systems that promise to make the world a better place to live in.

These two volumes constitute the selected and revised papers presented at the Second International Conference on Communication, Networks and Computing, CNC 2022, held in Gwalior, India, in December 2022. The 53 full papers were thoroughly reviewed and selected from the 152 submissions. They focus on ​the exciting new areas of wired and wireless communication systems, high-dimensional data representation and processing, networks and information security, computing techniques for efficient networks design, vehicular technology and applications and electronic circuits for communication systems that promise to make the world a better place to live in.

This book gathers visionary ideas from leading academics and scientists to predict the future of wireless communication and enabling technologies in 2050 and beyond. The content combines a wealth of illustrations, tables, business models, and novel approaches to the evolution of wireless communication. The book also provides glimpses into the future of emerging technologies, end-to-end systems, and entrepreneurial and business models, broadening readers’ understanding of potential future advances in the field and their influence on society at large

This book introduces context-aware computing, providing definitions, categories, characteristics, and context awareness itself and discussing its applications with a particular focus on smart learning environments. It also examines the elements of a context-aware system, including acquisition, modelling, reasoning, and distribution of context. It also reviews applications of context-aware computing – both past and present – to offer readers the knowledge needed to critically analyse how context awareness can be put to use. It is particularly to those new to the subject area who are interested in learning how to develop context-aware computing-oriented applications, as well as postgraduates and researchers in computer engineering, communications engineering related areas of information technology (IT). Further it provides practical know-how for professionals working in IT support and technology, consultants and business decision-makers and those working in the medical, human, and social sciences.

This book gathers visionary ideas from leading academics and scientists to predict the future of wireless communication and enabling technologies in 2050 and beyond. The content combines a wealth of illustrations, tables, business models, and novel approaches to the evolution of wireless communication. The book also provides glimpses into the future of emerging technologies, end-to-end systems, and entrepreneurial and business models, broadening readers’ understanding of potential future advances in the field and their influence on society at large

This book introduces context-aware computing, providing definitions, categories, characteristics, and context awareness itself and discussing its applications with a particular focus on smart learning environments.

This book offers an accessible introduction and practical guide to Voice over Internet Protocol (VoIP) technology, providing readers with the know-how to solve the problems encountered in applying VoIP technology across all types of network. It incorporates the latest research findings and brings readers up to date with the challenges that are faced by researchers developing novel applications of VoIP.The authors discuss the general architecture of VoIP technology, along with its application and relevance in conventional and emerging wireless communication networks, including Wireless Local Area Networks (WLANs), Worldwide Interoperability for Microwave Access (WiMAX), Long Term Evolution (LTE) and Cognitive Radio Networks. The book also includes Quality of service (QoS) studies under dynamic and unpredictable network conditions, which examine the reliability of both legacy systems And the upcoming pervasive computing systems. Further, it explains how the heuristic-based learning algorithms that are used in VoIP communications may help develop today’s technology in the area of autonomous systems.This book is a valuable source of information for academics and researchers, as it provides state-of-theart research in VoIP technology. It is also of interest to network designers, application architects, and service providers looking for a coherent understanding of VoIP across a wide range of devices, network applications and user categories.

This book constitutes the thoroughly refereed post-conference proceedings of the Third International ICST Conference on Security and Privacy in Mobile Information and Communication Systems (MOBISEC 2011) held in Aalborg, Denmark, in May 2011. The 15 revised full papers were carefully selected from numerous submissions and cover the most active areas of research in mobile security with its 3 focus areas machine-to-machine communication security, policies for mobile environments, and mobile user authentication and authorization.

This book presents AI-driven approaches for combating spam, phishing, and malware in email systems. It reviews classical techniques, identifies their limitations, and introduces two novel frameworks—FLIDA and G-SFO with adaptive capsule networks. It also highlights the role of quantum machine learning in enabling scalable and resilient email security.Key Features:Concise review of classical and AI-based spam detection.Innovative frameworks: FLIDA and G-SFO–ACapsNet.Insights into quantum paradigms for cybersecurity.Empirical evaluations and comparative performance analyses.Open research issues and future perspectives.This is a valuable resource for researchers, postgraduate students, and professionals in cybersecurity, AI, and data science, as well as industry practitioners and policymakers working on secure communication technologies.

Over the last few decades wireless communications, especially Mobile Communication Technology, has evolved by leaps and bounds. The mobile communication industry has named the different major changes as generations namely 1G, 2G,..5G. We are presently looking at deployment of 5G technologies. The work for 6G has already started.This book is focused on the waveform design of 6G. It presents a discourse on a potential waveform for 6G namely Orthogonal Time Frequency Space (OTFS) modulation. OTFS has a distinct feature when compared to earlier generation waveforms such that information bearing signal is placed in the delay Doppler domain as opposed to the usual placement of such signals in the time-frequency domain. This unique feature of OTFS enables it to overcome several disadvantages of a very popular and highly successful waveform namely Orthogonal Frequency Division Multiplexing (OFDM). OTFS is known to be more resilient to frequency offset and Doppler which is one of the key drawbacks of OFDM. With this feature, OTFS, can support higher mobility as well as higher frequency bands of operation which is also one of the key requirements of the next generation wireless communication technologies. The implementation complexity of OTFS remains comparable to that of OFDM. It is found that OTFS provides significant SNR advantage, higher resilience, lower PAPR, lower out of band signal leakage and higher multi-user spectral efficiency than that of OFDM. This book addresses• Fundamental signal model of OTFS. • Receiver design for OTFS• Channel estimation in OTFS• Multiple Access through non-orthogonal multiple access (NOMA-OTFS)The contents of the books are primarily outcome of the research work done at the G. S. Sanyal School of Telecommunications, Indian Institute of Technology Kharagpur, Kharagpur, India.Orthogonal Time Frequency Space Modulation : A waveform for 6G is ideal for personnel the wireless communication industry as well as academic staff and master/research students in electrical engineering with a specialization in wireless communications.

Since the launch of Second-Generation Networks (2G), planning for each future mobile service was initiated many years before its commercial launch. In 2019, 5G Networks begun to be deployed commercially after almost ten years of planning. Similarly, the race for the 6G wireless networks that will be operational in 2030 has already started. To fulfill its potential in the upcoming decade, 6G will undoubtedly require an architectural orchestration based on the amalgamation of existing solutions and innovative technologies. The book will begin by evaluating the state of the art of all current mobile generations' while looking into their core building blocks. 6G implementation will require fundamental support from Artificial Intelligence (AI) and Machine Learning on the network's edge and core, including a new Radio Frequency (RF) spectrum. The 6G use cases will require advanced techniques for enabling the future wireless network to be human-centric, ensuring enhanced quality of experience (QoE) for most of its applications. The concept of Human Bond Communication Beyond 2050 (Knowledge Home) and Communication, Navigation, Sensing, and Services (CONASENSE) will also profit from future wireless communication. Terahertz domains will exploit the ultra-Massive Multiple Input Multiple Output Antennas (UM-MIMO) technologies to support Terabits' data throughputs.Moreover, optical wireless communications (OWC) will also come into play to support indoor and outdoor high-data rates. Further expansion of 6G core entities will support the novel concept of Society 5.0. Quantum computing processing and communications is also likely to be added into the 6G ecosystem with security managed by blockchain orchestration for a robust network.

Security within CONASENSE Paragon describes in particular the cyber security issues in the field of Communication, Navigation, Sensing and Services within the broad platform of CTIF Global Capsule (CGC). This covers future technologies and its enablers, smart cities, crowd computing, reliable and secure communication interface, satellite unnamed air vehicles, wireless sensor networks, data analytics and deep learning, remotely piloted aircraft system and public safety, network neutrality, business ecosystem innovation and so on.