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Books > Computing & IT > Computer communications & networking > General
"By 2008, some 2 billion people will be using mobile phones and devices, in many cases to access advanced data services. Against this backdrop, the need for efficient and effective network design will be critical to the success of increasingly complex mobile networks." "Simon Beresford-Wylie (SVP, Nokia Networks)" With the complexity of the cellular networks increasing day by day, a deeper understanding of the design and performance of end-to-end cellular networks is required. Moreover, all the types of networks from 2G-2.5G-3G seem to co-exist. "Fundamentals of" "Cellular Network Planning and Optimisation" covers end-to-end network planning and optimisation aspects from second generation GSM to third generation WCDMA networks including GPRS and EDGE networks. All the sub-systems of the network i.e. radio network, transmission network and core network have been covered with focus on both practical and theoretical issues. By bringing all these concepts under one cover, this book becomes essential reading for the network design engineers working either with cellular service vendors or operators, experts/scientists working on end-to-end issues and undergraduate/post-graduate students. Key Highlights: Distinctly divided into four parts: 2G (GSM), 2.5G (GPRS & EDGE), 3G (WCDMA) and introduction to 4G (OFDM, ALL-IP, WLAN Overview) respectivelyEach part focuses on the radio, transmission and core networks.Concentrates on cellular network planning process and explains the underlying principles behind the planning and optimizing of the cellular networks. The text will serve as a handbook for anyone engaged in the study, design, deployment and business of cellular networks.
This book proposes that usage-based charging schemes are essential
to generate the incentives necessary for efficient operation of
multiservice networks. The rapid development of network technology
is enabling sophisticated new services and applications which
demand new charging models. The same technology provides the means
to operate the right charging schemes.Some of the work done in the
European collaborative project CA$hMAN (Charging and
Accounting Schemes in Multiservice ATM Networks). This project
combined performance and economic models of network resource usage
and cutomer utility to construct simple but effective charging
schemes which were implemented and trialled in an advanced
management platform.
IT technology engineering changes everyday life, especially in Computing and Communications. The goal of this book is to further explore the theoretical and practical issues of Future Computing and Communications. It also aims to foster new ideas and collaboration between researchers and practitioners.
Introduction: Historical Perspective. Definitions and Dependencies. Prerequisite Knowledge Areas: User Capabilities and Limitations. Computer Applications and Tasks. Computer Capabilities and Limitations. Interaction Characteristics and Options. Representation Models and Methods. Supportive Tools and Techniques. Design and Development: Design Terms and Decision Constructs. Design Approaches and Methods. Design Objects, Modules, and Models. Special-Purpose Designs: Network-Oriented Design. Adaptive Design. Index.
Sustaining a competitive edge in today's business world requires innovative approaches to product, service, and management systems design and performance. Advances in computing technologies have presented managers with additional challenges as well as further opportunities to enhance their business models Business Transformation and Sustainability through Cloud System Implementation presents novel computing technologies designed for use in business and corporate environments, enabling managers and associates to make the most of the technologies at their disposal. This premier reference work seeks to alert firm management professionals and researchers to the potential risks and benefits associated with emerging technologies and guide firms on the proper selection, maintenance, and use of Web-based computing systems.
This proceedings volume highlights a selection of papers presented at the Sixth International Conference on High Performance Scientific Computing, which took place in Hanoi, Vietnam on March 16-20, 2015. The conference was jointly organized by the Heidelberg Institute of Theoretical Studies (HITS), the Institute of Mathematics of the Vietnam Academy of Science and Technology (VAST), the Interdisciplinary Center for Scientific Computing (IWR) at Heidelberg University, and the Vietnam Institute for Advanced Study in Mathematics, Ministry of Education The contributions cover a broad, interdisciplinary spectrum of scientific computing and showcase recent advances in theory, methods, and practical applications. Subjects covered numerical simulation, methods for optimization and control, parallel computing, and software development, as well as the applications of scientific computing in physics, mechanics, biomechanics and robotics, material science, hydrology, biotechnology, medicine, transport, scheduling, and industry.
This book provides formal and informal definitions and taxonomies for self-aware computing systems, and explains how self-aware computing relates to many existing subfields of computer science, especially software engineering. It describes architectures and algorithms for self-aware systems as well as the benefits and pitfalls of self-awareness, and reviews much of the latest relevant research across a wide array of disciplines, including open research challenges. The chapters of this book are organized into five parts: Introduction, System Architectures, Methods and Algorithms, Applications and Case Studies, and Outlook. Part I offers an introduction that defines self-aware computing systems from multiple perspectives, and establishes a formal definition, a taxonomy and a set of reference scenarios that help to unify the remaining chapters. Next, Part II explores architectures for self-aware computing systems, such as generic concepts and notations that allow a wide range of self-aware system architectures to be described and compared with both isolated and interacting systems. It also reviews the current state of reference architectures, architectural frameworks, and languages for self-aware systems. Part III focuses on methods and algorithms for self-aware computing systems by addressing issues pertaining to system design, like modeling, synthesis and verification. It also examines topics such as adaptation, benchmarks and metrics. Part IV then presents applications and case studies in various domains including cloud computing, data centers, cyber-physical systems, and the degree to which self-aware computing approaches have been adopted within those domains. Lastly, Part V surveys open challenges and future research directions for self-aware computing systems. It can be used as a handbook for professionals and researchers working in areas related to self-aware computing, and can also serve as an advanced textbook for lecturers and postgraduate students studying subjects like advanced software engineering, autonomic computing, self-adaptive systems, and data-center resource management. Each chapter is largely self-contained, and offers plenty of references for anyone wishing to pursue the topic more deeply.
"Focuses broadly on those aspects of the UNIX environment that are needed to provide a more global understanding, especially in its dealing with distributed and networked systems, in a very practical and hands-on manner." -- IEEE Network Magazine
The book is focused on defense mechanisms as theoretical constructs
as well as the possibilities of their empirical registration by
different methods, and the application of these constructs in
different fields of psychology with special regard to concurrent
and predictive validity. It is argued that defense mechanisms are
in many ways to be seen as integrative constructs, not necessarily
restricted to psychoanalytic theory and that the potential fields
of their application have a wide ranging scope, comprising many
fields of psychology. Consequently empirical studies are presented
from the fields of clinical and personality psychology,
psychotherapy research and psychosomatic phenomena and diseases.
Methodological questions have a heavy weight in most of these
studies.
This book consists of eight chapters, five of which provide a summary of the tutorials and workshops organised as part of the cHiPSet Summer School: High-Performance Modelling and Simulation for Big Data Applications Cost Action on "New Trends in Modelling and Simulation in HPC Systems," which was held in Bucharest (Romania) on September 21-23, 2016. As such it offers a solid foundation for the development of new-generation data-intensive intelligent systems. Modelling and simulation (MS) in the big data era is widely considered the essential tool in science and engineering to substantiate the prediction and analysis of complex systems and natural phenomena. MS offers suitable abstractions to manage the complexity of analysing big data in various scientific and engineering domains. Unfortunately, big data problems are not always easily amenable to efficient MS over HPC (high performance computing). Further, MS communities may lack the detailed expertise required to exploit the full potential of HPC solutions, and HPC architects may not be fully aware of specific MS requirements. The main goal of the Summer School was to improve the participants' practical skills and knowledge of the novel HPC-driven models and technologies for big data applications. The trainers, who are also the authors of this book, explained how to design, construct, and utilise the complex MS tools that capture many of the HPC modelling needs, from scalability to fault tolerance and beyond. In the final three chapters, the book presents the first outcomes of the school: new ideas and novel results of the research on security aspects in clouds, first prototypes of the complex virtual models of data in big data streams and a data-intensive computing framework for opportunistic networks. It is a valuable reference resource for those wanting to start working in HPC and big data systems, as well as for advanced researchers and practitioners.
Healthcare organizations are constantly designing effective systems aiming to help achieve customer satisfaction. Web-based and mobile-based technologies are two forms of information technologies that healthcare executives are increasingly looking to merge as an opportunity to develop such systems. ""Web Mobile-Based Applications for Healthcare Management"" addresses the difficult task of managing admissions and waiting lists while ensuring a quick and convincing response to unanticipated changes of the clinical needs. ""Web Mobile-Based Applications for Healthcare Management"" tackles the limitations of traditional systems, and takes into consideration the dynamic nature of clinical needs, scarce resources, alternative strategies, and customer satisfaction in an environment that often imposes unexpected deviation from planned activities.
This book introduces the latest research findings in cloud, edge, fog, and mist computing and their applications in various fields using geospatial data. It solves a number of problems of cloud computing and big data, such as scheduling, security issues using different techniques, which researchers from industry and academia have been attempting to solve in virtual environments. Some of these problems are of an intractable nature and so efficient technologies like fog, edge and mist computing play an important role in addressing these issues. By exploring emerging advances in cloud computing and big data analytics and their engineering applications, the book enables researchers to understand the mechanisms needed to implement cloud, edge, fog, and mist computing in their own endeavours, and motivates them to examine their own research findings and developments.
Cyber-physical systems (CPS) are characterized as a combination of physical (physical plant, process, network) and cyber (software, algorithm, computation) components whose operations are monitored, controlled, coordinated, and integrated by a computing and communicating core. The interaction between both physical and cyber components requires tools allowing analyzing and modeling both the discrete and continuous dynamics. Therefore, many CPS can be modeled as hybrid dynamic systems in order to take into account both discrete and continuous behaviors as well as the interactions between them. Guaranteeing the security and safety of CPS is a challenging task because of the inherent interconnected and heterogeneous combination of behaviors (cyber/physical, discrete/continuous) in these systems. This book presents recent and advanced approaches and tech-niques that address the complex problem of analyzing the diagnosability property of cyber physical systems and ensuring their security and safety against faults and attacks. The CPS are modeled as hybrid dynamic systems using different model-based and data-driven approaches in different application domains (electric transmission networks, wireless communication networks, intrusions in industrial control systems, intrusions in production systems, wind farms etc.). These approaches handle the problem of ensuring the security of CPS in presence of attacks and verifying their diagnosability in presence of different kinds of uncertainty (uncertainty related to the event occurrences, to their order of occurrence, to their value etc.).
With the proliferation of Software-as-a-Service (SaaS) offerings, it is becoming increasingly important for individual SaaS providers to operate their services at a low cost. This book investigates SaaS from the perspective of the provider and shows how operational costs can be reduced by using "multi tenancy," a technique for consolidating a large number of customers onto a small number of servers. Specifically, the book addresses multi tenancy on the database level, focusing on in-memory column databases, which are the backbone of many important new enterprise applications. For efficiently implementing multi tenancy in a farm of databases, two fundamental challenges must be addressed, (i) workload modeling and (ii) data placement. The first involves estimating the (shared) resource consumption for multi tenancy on a single in-memory database server. The second consists in assigning tenants to servers in a way that minimizes the number of required servers (and thus costs) based on the assumed workload model. This step also entails replicating tenants for performance and high availability. This book presents novel solutions to both problems.
Service orchestration techniques combine the benefits of Service Oriented Architecture (SOA) and Business Process Management (BPM) to compose and coordinate distributed software services. On the other hand, Software-as-a-Service (SaaS) is gaining popularity as a software delivery model through cloud platforms due to the many benefits to software vendors, as well as their customers. Multi-tenancy, which refers to the sharing of a single application instance across multiple customers or user groups (called tenants), is an essential characteristic of the SaaS model. Written in an easy to follow style with discussions supported by real-world examples, Service Orchestration as Organization introduces a novel approach with associated language, framework, and tool support to show how service orchestration techniques can be used to engineer and deploy SaaS applications.
A new product can be easy or difficult to use, it can be efficient or cumbersome, engaging or dispiriting, it can support the way we work and think - or not. What options are available for systematically addressing such parameters and provide users with an appropriate functionality, usability and experience? In the last decades, several fields have evolved that encompass a user-centred approach to create better products for the people who use them. This book provides a comprehensible introduction to the subject. It is aimed first and foremost at people involved in software and product development - product managers, project managers, consultants and analysts, who face the major challenge of developing highly useful and usable products. Topics include: The most important user-centred techniques and their alignment in the development process Planning examples of user-centred activities for projects User-oriented approaches for organisations Real-life case studies Checklists, tips and a lot of background information provide help for practitioners
A two-volume set to help you prepare for success on the NEW Cisco CCNA Certification exam. Get certified and advance your technical career. To earn a Cisco Certified Network Associate (CCNA) certification, you only need to take one exam, which will validate your knowledge and skills related to everything from networking to automation. This inclusive, two-book set provides what you need to know to succeed on the new CCNA exam. The set includes Understanding Cisco Networking Technologies: Volume 1 and the CCNA Certification Study Guide: Volume 2. Understanding Cisco Networking Technologies provides comprehensive information and foundational knowledge about core Cisco technologies, helping you implement and administer Cisco solutions. The CCNA Certification Study Guide prepares you for the new CCNA certification Exam 200-301, which assesses your abilities related to network fundamentals. Both books cover a range of topics so you can get ready for the exam and apply your technical knowledge. Prepare for testing on network and security fundamentals Review network access concepts Solidify your knowledge related to IP connectivity and services Assess your automation and programmability skills Written by a Cisco expert, Todd Lammle, this set helps you master the concepts you need to succeed as a networking administrator. It also connects you to online interactive learning tools, including sample questions, a pre-assessment, practice exam, flashcards, and a glossary. If you want to earn the new CCNA certification and keep moving forward in your IT career, this book and study guide are for you.
This book highlights technology trends and challenges that trace the evolution of antenna design, starting from 3rd generation phones and moving towards the latest release of LTE-A. The authors explore how the simple monopole and whip antenna from the GSM years have evolved towards what we have today, an antenna design that is compact, multi-band in nature and caters to multiple elements on the same patch to provide high throughput connectivity. The scope of the book targets a broad range of subjects, including the microstrip antenna, PIFA antenna, and the monopole antenna to be used for different applications over three different mobile generations. Beyond that, the authors take a step into the future and look at antenna requirements for 5G communications, which already has the 5G drive in place with prominent scenarios and use-cases emerging. They examine these, and put in place the challenges that lie ahead for antenna design, particularly in mm-Wave design. The book provides a reference for practicing engineers and under/post graduate students working in this field.
This book presents advances in the field of optical networks - specifically on research and applications in elastic optical networks (EON). The material reflects the authors' extensive research and industrial activities and includes contributions from preeminent researchers and practitioners in optical networking. The authors discuss the new research and applications that address the issue of increased bandwidth demand due to disruptive, high bandwidth applications, e.g., video and cloud applications. The book also discusses issues with traffic not only increasing but becoming much more dynamic, both in time and direction, and posits immediate, medium, and long-term solutions throughout the text. The book is intended to provide a reference for network architecture and planning, communication systems, and control and management approaches that are expected to steer the evolution of EONs.
This book presents the edited proceedings of the 16th IEEE/ACIS International Conference on Computer and Information Science (ICIS 2017), which was held on May 24-26, 2017 in Wuhan, China. The aim of this conference was to bring together researchers and scientists, businessmen and entrepreneurs, teachers, engineers, computer users, and students to discuss the various fields of computer science, share their experiences and exchange new ideas and information. The research results included relate to all aspects (theory, applications and tools) of computer and information science, and discuss the practical challenges encountered and the solutions adopted to solve them. The work selected represents 17 of the most promising papers from the conference, written by authors who are certain to make further significant contributions to the field of computer and information science.
With the continued research of distributed systems and technologies, the ability to have mixed technologies work together is crucial for the development of many types of society systems. Development of Distributed Systems from Design to Application and Maintenance is a collection of research on the strategies used in the design and development of distributed systems applications. Including research from traditional and emerging areas of applied distributed systems, this book covers theories, practices, and encourages future development for researchers, practitioners, and industry professionals as well as academicians.
This two-volume set focuses on fundamental concepts and design goals (i.e., a switch/router's key features), architectures, and practical applications of switch/routers in IP networks. The discussion includes practical design examples to illustrate how switch/routers are designed and how the key features are implemented. Designing Switch/Routers: Fundamental Concepts, Design Methods, Architectures, and Applications begins by providing an introductory level discussion that covers the functions and architectures of the switch/router. The first book considers the switch/router as a generic Layer 2 and Layer 3 forwarding device without placing emphasis on any particular manufacturer's device. The underlining concepts and design methods are not only positioned to be applicable to this generic switch/router, but also to the typical switch/router seen in the industry. The discussion provides a better insight into the protocols, methods, processes, and tools that go into designing switch/routers. The second volume explains the design and architectural considerations, as well as, the typical processes and steps used to build practical switch/routers. It then discusses the advantages of using Ethernet in today's networks and why Ethernet continues to play a bigger role in Local Area Network (LAN), Metropolitan Area Network (MAN), and Wide Area Network (WAN) design. This book set provides a discussion of the design of switch/routers and is written in a style to appeal to undergraduate and graduate-level students, engineers, and researchers in the networking and telecoms industry, as well as academics and other industry professionals. The material and discussion are structured in such a way that they could serve as standalone teaching material for networking and telecom courses and/or supplementary material for such courses. |
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