Author: PROFESSOR DR LE NGUYEN. BINH
Publisher: IOP Publishing Limited
ISBN: 9780750322904
Category :
Languages : en
Pages : 250
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Book Description
This book offers insights into the key concepts and transport technology of data centres and is an invaluable source for scientists, engineers, professors and mid-senior level students.
Author: Le Nguyen Binh
Publisher: IOP Publishing Limited
ISBN: 9780750358477
Category : Science
Languages : en
Pages : 0
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Book Description
This book is designed for the modern world of data centre networking technologies. This second edition offers insights into transport technology for data centres and the principal techniques for modern communication transmission of ultra-wideband channels.
Author: Le Nguyen Binh
Publisher:
ISBN: 9780750322911
Category : SCIENCE
Languages : en
Pages :
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Book Description
This book offers insights into transport technology for data centres and the principal techniques for modern communication transmission of ultra-wideband channels. The book begins with an introduction to digital transmission technologies and data centre networking, progressing to discussions on access and DC networking transmission technologies and super-channel transmission by multi-carrier sources, before concluding with a chapter on photonic signal processors. The comprehensive and up-to-date overview offered by the book is an invaluable source for scientists, engineers, professors and mid-senior level students involved with data transmission and processing. Part of IOP Series in Advances in Optics, Photonics and Optoelectronics.
Author: Deke Guo
Publisher: Springer Nature
ISBN: 9811693684
Category : Computers
Languages : en
Pages : 262
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Book Description
This book provides a comprehensive reference in large data center networking. It first summarizes the developing trend of DCNs, and reports four novel DCNs, including a switch-centric DCN, a modular DCN, a wireless DCN, and a hybrid DCN. Furthermore another important factor in DCN targets at managing and optimizing the network activity at the level of transfers to aggregate correlated data flows and thus directly to lower down the network traffic resulting from such data transfers. In particular, the book reports the in-network aggregation of incast transfer, shuffle transfer, uncertain incast transfer, and the cooperative scheduling of uncertain multicast transfer.
Author: Binh
Publisher:
ISBN: 9780750358491
Category :
Languages : en
Pages : 0
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Book Description
Author: Ayman Elmassarawy
Publisher: Ayman Elmassarawy
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 572
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Book Description
Digital transmission systems are the backbone of modern communication networks, enabling the exchange of information across various media, such as copper wires, optical fibers, radio waves, and satellites. These systems use digital signals to encode, transmit, and decode data, such as voice, video, text, and images. Digital transmission systems have many advantages over analog systems, such as higher capacity, better quality, lower cost, and more flexibility. However, designing and implementing digital transmission systems is not a trivial task. It requires a solid understanding of the fundamental principles, techniques, and standards that govern the operation and performance of these systems. It also requires a familiarity with the various technologies and components that are used to realize these systems, such as modulation, multiplexing, coding, switching, amplification, and synchronization. This book aims to provide a comprehensive and up-to-date introduction to the fundamentals of digital transmission systems, covering both theoretical and practical aspects. It is intended for students, engineers, and researchers who want to learn the basics of digital transmission systems, as well as for professionals who want to refresh or update their knowledge in this field. The book is also important for communication engineers and operators who are involved in the planning, design, installation, operation, maintenance, and troubleshooting of digital transmission systems and networks. The book covers the most common and widely used standards and technologies in digital transmission, such as PCM, PDH, SDH, OTN, WDM, ADSL, GPON, and radio waves. The book also provides the latest information on the evolution and trends of digital transmission, such as liquid OTN, fiber-optic transmission systems, and digital transmission networks. The book helps communication engineers and operators to understand the principles, advantages, limitations, and challenges of digital transmission systems and to apply them to their specific needs and scenarios. The book is organized into eight chapters, each covering a major topic in digital transmission systems. The chapters are as follows: Chapter 1 introduces the importance, motivations, and overview of digital transmission systems, and provides a conclusion and some questions for review. Chapter 2 explains the fundamentals of pulse code modulation (PCM), which is the most common technique for converting analog signals into digital signals. It also describes the structure and signaling of the 2 Mbit/s (E1) frame, which is the basic unit of transmission in many digital systems. Chapter 3 discusses the plesiochronous digital hierarchy (PDH), which is a legacy standard for multiplexing and transporting digital signals over copper wires or optical fibers. It also covers the frame structure, synchronization, signaling, error detection and correction, network architecture, and limitations of PDH. Chapter 4 introduces the synchronous digital hierarchy (SDH), which is a more advanced and widely adopted standard for multiplexing and transporting digital signals over optical fibers. It also covers the general and specific frame structures, multiplexing hierarchy, network and management, network protections, and synchronization of SDH. Chapter 5 presents optical fiber technology, which is the main medium for transmitting digital signals over long distances and at high speeds. It also covers the technical overview, physics of light, and design and protection of fiber optic cables. Chapter 6 explores the wavelength division multiplexing (WDM) technology, which is a technique for increasing the capacity and efficiency of optical fiber networks by using multiple wavelengths of light. It also covers the WDM and optical fiber structure, active and passive optical components, optical amplification, noise calculation, fiber-optic transmission systems, and fiber-optic networks. Chapter 7 describes the optical transport network (OTN), which is a standard for multiplexing and transporting various types of digital signals over optical fibers using a common format. It also covers the OTN fundamentals, multiplexing overview, frame structure, evolution to liquid OTN, and important topics in OTN. Chapter 8 reviews the ADSL modems, GPON fundamentals, and radio waves propagations, which are some of the technologies and phenomena that are related to digital transmission systems. The book also includes two appendices that provide some supplementary information on BIP, SDH Synchronization, OTN protection and more. The book assumes that the reader has some basic knowledge of mathematics, physics, and electronics, as well as some familiarity with communication systems and networks. The book provides clear explanations, examples, figures, tables, and equations to illustrate the concepts and methods of digital transmission systems. The book also provides questions at the end of each chapter to test the reader’s understanding and to stimulate further exploration. The book is written by who is a Doctor of Electrical Engineering, Egypt. Ayman Elmassarawy has a PhD in communication systems and has over 20 years of research and practical experience in the field of digital transmission systems in the field of digital transmission systems. The book is a valuable resource for anyone who wants to learn the fundamentals of digital transmission systems and to gain a deeper insight into the current and emerging technologies and standards in this field. The book is also a useful reference for anyone who is involved in the design, implementation, operation, or maintenance of digital transmission systems and networks.
Author: Francesco Testa
Publisher: Springer
ISBN: 331961052X
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
This book introduces the reader to the optical switching technology for its application to data centers. In addition, it takes a picture of the status of the technology and system architecture evolution and of the research in the area of optical switching in data center. The book is organized in four parts: the first part is focused on the system aspects of optical switching in intra-data center networking, the second part is dedicated to describing the recently demonstrated optical switching networks, the third part deals with the latest technologies developed to enable optical switching and, finally, the fourth part of the book outlines the future prospects and trends.
Author: Mamta Mittal
Publisher: Springer
ISBN: 9811305501
Category : Computers
Languages : en
Pages : 275
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Book Description
The book describes the emergence of big data technologies and the role of Spark in the entire big data stack. It compares Spark and Hadoop and identifies the shortcomings of Hadoop that have been overcome by Spark. The book mainly focuses on the in-depth architecture of Spark and our understanding of Spark RDDs and how RDD complements big data’s immutable nature, and solves it with lazy evaluation, cacheable and type inference. It also addresses advanced topics in Spark, starting with the basics of Scala and the core Spark framework, and exploring Spark data frames, machine learning using Mllib, graph analytics using Graph X and real-time processing with Apache Kafka, AWS Kenisis, and Azure Event Hub. It then goes on to investigate Spark using PySpark and R. Focusing on the current big data stack, the book examines the interaction with current big data tools, with Spark being the core processing layer for all types of data. The book is intended for data engineers and scientists working on massive datasets and big data technologies in the cloud. In addition to industry professionals, it is helpful for aspiring data processing professionals and students working in big data processing and cloud computing environments.
Author: Frank Chang
Publisher: CRC Press
ISBN: 1000794938
Category : Computers
Languages : en
Pages : 758
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Book Description
In recent years, investments by cloud companies in mega data centers and associated network infrastructure has created a very active and dynamic segment in the optical components and modules market. Optical interconnect technologies at high speed play a critical role for the growth of mega data centers, which flood the networks with unprecedented amount of data traffic. Datacenter Connectivity Technologies: Principles and Practice provides a comprehensive and in-depth look at the development of various optical connectivity technologies which are making an impact on the building of data centers. The technologies span from short range connectivity, as low as 100 meters with multi-mode fiber (MMF) links inside data centers, to long distances of hundreds of kilometers with single-mode fiber (SMF) links between data centers.This book is the first of its kind to address various advanced technologies connecting data centers. It represents a collection of achievements and the latest developments from well-known industry experts and academic researchers active in this field.
Author: Ayman Elmassarawy
Publisher: Ayman Elmassarawy
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 421
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Book Description
This book delves into the fascinating world of fiber optic cables, the unsung heroes of today's information age. It takes you on a comprehensive journey, exploring the intricate characteristics of these cables and their transformative role in communication networks, particularly within data centers and mobile technologies. The book provides a comprehensive exploration of fiber optic cables, with a focus on their design, operation, and impact on communication networks. It delves into the fundamental principles of light propagation in optical fibers and covers a range of topics, from the physics of light to the advantages of optical fibers in communication networks. It also addresses the challenges and opportunities presented by different types of optical fibers and their applications in modern technologies. Chapter 1 delves into the comprehensive exploration of optical fiber technology. It covers the foundational principles of optical fiber structures and light guiding principles, the evolution of the technology, the superiority of fiber optic communication systems over traditional copper-based systems, specialty optical fibers, and their unique applications, and the transformative impact of optical fiber technologies on communication networks. Chapter 2 delves into the physics of light propagation in optical fibers. It explores the concept of light from both wave and ray perspectives, gaining a deeper understanding of its behavior. The chapter also covers the crucial role of the refractive index and reflection coefficient in guiding light through the fiber core, as well as the intricacies of light propagation as it interacts with varying refractive indices within the fiber. Chapter 3 focuses on the challenges encountered during light propagation in optical fibers. It includes a comprehensive examination of the fiber optic cable structure, exploring its various components. The chapter also explores the intricacies of a fiber optic communication system, with a particular focus on the crucial role of Total Internal Reflection in guiding light along the desired path, and the concept of attenuation, a primary challenge in fiber optic communication, and how it affects signal strength. Chapter 4 takes a closer look at the design, protection, and environment-specific solutions employed in fiber optic cables. It offers a scientific exploration of fiber optic cable design, analyzing the different components and their contributions to overall functionality. The chapter also provides a detailed focus on outdoor cables, fiber optic connectors, the intricate details of fiber optic connectors, highlighting the importance of precision engineering, durable materials, tools, and splicing equipment for fiber optic network installation and maintenance. Chapter 5 introduces the essential elements of a fiber optic communication system – the light sources and detectors. The chapter provides a foundational overview of different fiber optic cable categories and dives into the concept of refractive index profiles and its crucial role in determining light propagation characteristics. It also explores the underlying principles of light emission, the role of energy bands, and the fundamental differences between LEDs and lasers, as well as an in-depth analysis of edge-emitting, including their quantum efficiency and light generation mechanisms and scientific breakdown of Laser Diodes and Avalanche Photodiodes. Chapter 6 delves into the realm of Dense Wave Division Multiplexing (DWDM), a revolutionary technology that has significantly increased the capacity of fiber optic communication networks. The chapter offers a clear introduction to the concept of WDM and its relationship with the structure of optical fibers. It also explores various passive and active optical components, the science behind active optical components, fiber optic transmission systems, and microwave over fiber optics links, and the key technologies driving DWDM advancements.
