› › Uplink Downlink

Uplink-downlink

Author : Douglas J. Mudgway

Publisher :

Page : 736 pages

File Size : 48,64 MB

Release : 2001

Category : Deep Space Network

ISBN :

Get eBook

Book Description

A description of what the Deep Space Network (DSN) is about, and how it works an aspect of NASA's planetary program. The origin and birth of the DSN, its subsequent development and expansion over four decades, and a description of the way in which the DSN was used to fulfill the purpose for which it was created. Technical references on the advanced telecommunications technology of the DSN. Describes the inner workings of the DSN and how they related to the more publicly visible events of the planetary space program.



The Basics of Satellite Communications

Author : Joseph N. Pelton

Publisher : Intl. Engineering Consortiu

Page : 388 pages

File Size : 26,43 MB

Release : 2006

Category : Technology & Engineering

ISBN : 9781931695480

Get eBook

Book Description

Despite the proliferation of new communications technologies, the decades-old satellite industry is shifting with the times. Now in its second edition, this guide addresses the myriad aspects of the technology in its current form and explores the paths it is expected to take in the future.



Satellite Communication

Author : Dharma Raj Cheruku

Publisher : I. K. International Pvt Ltd

Page : 345 pages

File Size : 49,68 MB

Release : 2010

Category : Technology & Engineering

ISBN : 9380026412

Get eBook

Book Description

Satellite Communication is a special technology in the field of Electronic Communication Systems. A Graduate engineering students with Electronics and Communication Engineering will find this book useful to understand the concepts of satellite communication. This book deals with the technology and gives an adequate treatment of the subject. Analysis and design of satellite communication equipment is also treated to the extent required for the engineering graduates. It is very useful reference for the candidates preparing for higher studies and competitive examinations. Mathematical analysis is presented wherever required and concepts are well illustrated. It also deals with latest technological developments in the related fields. Spread in 11 chapters the book discusses: Development of the satellite communication. Orbits of the satellite. Link analysis Basic subsystems of the satellite Methods of multiple access Earth station design.



Signal and Information Processing, Networking and Computers

Author : Jiande Sun

Publisher : Springer Nature

Page : 1534 pages

File Size : 47,65 MB

Release : 2022-07-01

Category : Technology & Engineering

ISBN : 9811933871

Get eBook

Book Description

This book collects selected papers from the 8th Conference on Signal and Information Processing, Networking and Computers held in Ji’nan, Shandong, China on September 13-17, 2021. It focuses on the current works of information theory, communication system, computer science, aerospace technologies and big data and other related technologies. Readers from both academia and industry of this field can contribute and find their interests from the book.



Cellular Networks

Author : Agassi Melikov

Publisher : BoD – Books on Demand

Page : 420 pages

File Size : 44,91 MB

Release : 2011-04-26

Category : Technology & Engineering

ISBN : 9533072466

Get eBook

Book Description

Wireless cellular networks are an integral part of modern telecommunication systems. Today it is hard to imagine our life without the use of such networks. Nevertheless, the development, implementation and operation of these networks require engineers and scientists to address a number of interrelated problems. Among them are the problem of choosing the proper geometric shape and dimensions of cells based on geographical location, finding the optimal location of cell base station, selection the scheme dividing the total net bandwidth between its cells, organization of the handover of a call between cells, information security and network reliability, and many others. The book focuses on three types of problems from the above list - Positioning, Performance Analysis and Reliability. It contains three sections. The Section 1 is devoted to problems of Positioning and contains five chapters. The Section 2 contains eight Chapters which are devoted to quality of service (QoS) metrics analysis of wireless cellular networks. The Section 3 contains two Chapters and deal with reliability issues of wireless cellular networks. The book will be useful to researches in academia and industry and also to post-gradute students in telecommunication specialitiies.



Machine-Type Communication for Maritime Internet-of-Things

Author : Michael Mao Wang

Publisher : Springer Nature

Page : 303 pages

File Size : 36,58 MB

Release : 2021-10-26

Category : Technology & Engineering

ISBN : 3030779084

Get eBook

Book Description

This book introduces the concept of machine-type communication (MTC) for maritime Internet of Things. The first part of the book portrays a maritime MTC system from an architectural perspective and describes an MTC framework and the fundamental components, laying out a foundation that leads to an ultimate solution to the maritime IoT requirements and challenges. The second part ties together all discussed in the first part and demonstrates how to apply it to a practical system through a realistic design example based on an international maritime mobile spectrum. The book serves as a comprehensive tutorial of the maritime MTC from the top (the network architecture) to the bottom (the air/radio interface and regulatory radio spectrum constraints), guiding readers to an easier understanding of the maritime MTC-related issues and the rationale behind the design. The primary readers of this book include maritime communication engineers, maritime IoT professionals, maritime academia, and the general MTC and IoT communities. Presents the concept of machine-type communication (MTC) for maritime Internet of Things (IoT) and its services, requirements, and challenges; Explains space-earth-integrated maritime machine-type communication system architecture with a comparison with its land counterpart; Sets out a comprehensive framework and details the ways to implement it on a practical radio spectrum; Includes maritime MTC radio spectrum and regulations, network design, protocol design, and air interface design.



3G / SAE Bundle

Author : Erik Dahlman

Publisher : Academic Press

Page : 651 pages

File Size : 33,21 MB

Release : 2009-12-11

Category : Computers

ISBN : 0123786282

Get eBook

Book Description

Combining information on the most important and related technologies in the mobile communications field, this two book package gives the engineer a concise, complete and authoritative introduction to LTE and SAE and The Evolved Packet Core. Written by experts who played a leading role in the development of the standards, this package gives insight into the 'how' and 'why', enabling the professional engineer to implement the technologies that are central to the mobile broadband revolution. Includes details of the standards and technologies with 160 new pages: LTE radio interface architecture, LTE physical layer and LTE access procedures Contains three brand new chapters on LTE: Transmission Procedures, Flexible Bandwidth and LTE Evolution, plus expanded details on the physical layer (total LTE content is 270 pages) Examines the latest developments in the evolution of LTE into IMT-Advanced, the next stage of 3G Evolution Gives clear explanations of the role of OFDM and MIMO technologies in HSPA and LTE Outlines the System Architecture Evolution (SAE) supporting LTE and HSPA evolution Up-to-date coverage of SAE including the latest standards development Easily accessible overview of the architecture and concepts defined by SAE Thorough description of the Evolved Packet Core for LTE, fixed and other wireless accesses Comprehensive explanation of SAE key concepts, security and Quality-of-Service Covers potential service and operator scenarios including interworking with existing 3GPP and 3GPP2 systems Detailed walkthrough of network entities, protocols and procedures Written by established experts in the SAE standardization process, all of whom have extensive experience and understanding of its goals, history and vision



New Horizons

Author : C.T. Russell

Publisher : Springer Science & Business Media

Page : 398 pages

File Size : 47,39 MB

Release : 2009-02-28

Category : Science

ISBN : 0387895183

Get eBook

Book Description

New Horizons: Reconnaissance of the Pluto–Charon System and the Kuiper Belt C. T. Russell Originally published in the journal Space Science Reviews, Volume 140, Nos 1–4, 1–2. DOI: 10. 1007/s11214-008-9450-0 © Springer Science+Business Media B. V. 2008 Exploration is mankind’s imperative. Since the beginnings of civilization, men and women have not been content to build a wall around their settlements and stay within its con nes. They explored the land around them, climbed the mountains, and scanned the horizons. The boldest among them pushed exploration to the most distant frontiers of the planet. As a result, much of the Earth was inhabited well before the days of the renowned European - th th plorers of the 15 and 16 centuries. Exploration did not cease, after the circumnavigation of the globe; it continued to the present. Today explorers are going in new directions, not just east and west, north and south. They explore backward in time and upward in space. Arc- ology explores the shorter time scales, and geochemistry the longer time scales of geophy- cal events: asteroidal and cometary collisions, magnetic reversals, continental formation and more. However, on Earth we cannot go back inde nitely, for much of the evidence of the very earliest days has been lost.



Modulation and Coding Techniques in Wireless Communications

Author : Evgenii Krouk

Publisher : John Wiley & Sons

Page : 731 pages

File Size : 15,74 MB

Release : 2011-01-19

Category : Technology & Engineering

ISBN : 0470976713

Get eBook

Book Description

The high level of technical detail included in standards specifications can make it difficult to find the correlation between the standard specifications and the theoretical results. This book aims to cover both of these elements to give accessible information and support to readers. It explains the current and future trends on communication theory and shows how these developments are implemented in contemporary wireless communication standards. Examining modulation, coding and multiple access techniques, the book is divided into two major sections to cover these functions. The two-stage approach first treats the basics of modulation and coding theory before highlighting how these concepts are defined and implemented in modern wireless communication systems. Part 1 is devoted to the presentation of main L1 procedures and methods including modulation, coding, channel equalization and multiple access techniques. In Part 2, the uses of these procedures and methods in the wide range of wireless communication standards including WLAN, WiMax, WCDMA, HSPA, LTE and cdma2000 are considered. An essential study of the implementation of modulation and coding techniques in modern standards of wireless communication Bridges the gap between the modulation coding theory and the wireless communications standards material Divided into two parts to systematically tackle the topic - the first part develops techniques which are then applied and tailored to real world systems in the second part Covers special aspects of coding theory and how these can be effectively applied to improve the performance of wireless communications systems



GPRS

Author : Gunnar Heine

Publisher : Artech House

Page : 330 pages

File Size : 17,5 MB

Release : 2003

Category : Computers

ISBN : 9781580536073

Get eBook

Book Description

This innovative new book, from leading industry experts Gunnar Heine and Holger Sagkob, puts a focus on GPRS (General Packet Radio Service) but also explains the alternative and complementary technologies HSCSD, EDGE, IS-136 HS. It teaches you how the packet data standard GPRS can help you to expand your network towards third generation, meeting the demands of the most-sophisticated mobile data applications. The book focuses on the specifics and procedures of the air-interface, while giving you a thorough understanding of IP related protocols and a detailed presentation of all the important protocol scenarios that you may encounter in GPRS and HSCSD. Other discussions include an introduction to GSM and TDMA, data transmission protocols, and terrestrial interfaces. An extensive glossary provides answers to many of the technical questions that may arise while utilizing GPRS, HSCSD, EDGE or IS-136 HS technology. Packed with more than 200 illustrations that support key topics.