Lte For Umts - Ofdma And Sc-Fdma Based Radio Access, Lte For Umts - Ofdma And Sc-Fdma Based Radio Access
Автор: Holma Название: LTE for UMTS ISBN: 0470660007 ISBN-13(EAN): 9780470660003 Издательство: Wiley Цена: 8752 р. Наличие на складе: Нет в наличии. Описание: Written by experts actively involved in the 3GPP standards andproduct development, LTE for UMTS, Second Edition gives acomplete and up-to-date overview of Long Term Evolution (LTE) in asystematic and clear manner. Building upon on the success of thefirst edition, LTE for UMTS, Second Edition has been revisedto now contain improved coverage of the Release 8 LTE details, including field performance results, transport network, selfoptimized networks and also covering the enhancements done in 3GPPRelease 9. This new edition also provides an outlook to Release 10, including the overview of Release 10 LTE-Advanced technologycomponents which enable reaching data rates beyond 1 Gbps.
Key updates for the second edition of LTE for UMTS arefocused on the new topics from Release 9 & 10, and include:
Self optimized networks (SON);
Transport network dimensioning;
Автор: Holma Название: LTE for UMTS ISBN: 0470660007 ISBN-13(EAN): 9780470660003 Издательство: Wiley Рейтинг: Цена: 8752 р. Наличие на складе: Нет в наличии.
Описание: Written by experts actively involved in the 3GPP standards andproduct development, LTE for UMTS, Second Edition gives acomplete and up-to-date overview of Long Term Evolution (LTE) in asystematic and clear manner. Building upon on the success of thefirst edition, LTE for UMTS, Second Edition has been revisedto now contain improved coverage of the Release 8 LTE details, including field performance results, transport network, selfoptimized networks and also covering the enhancements done in 3GPPRelease 9. This new edition also provides an outlook to Release 10, including the overview of Release 10 LTE-Advanced technologycomponents which enable reaching data rates beyond 1 Gbps.
Key updates for the second edition of LTE for UMTS arefocused on the new topics from Release 9 & 10, and include:
Описание: A comprehensive discussion of multiple access protocols for cellular systems and the consideration of the specific constraints and capabilities of second and third generation systems regarding the multiple access protocols. Beginning by introducing the cellular concept and discussing second and third generation cellular communication systems, including the evolution from these systems to IP-based systems, the authors then identify the requirements for and problems related to multiple access. In accordance with ETSI and 3GPP standards, a split is made into basic multiple access schemes such as CDMA, TDMA and FDMA and multiple access protocols. The pros and cons of CDMA and TDMA for third generation systems are discussed as well as medium access in GSM, GPRS and UMTS, essentially based on R-ALOHA protocols in all these systems. Data access delay and voice dropping performance is assessed and the different UTRA modes are considered. - Provides an accessible text for individuals with little prior knowledge of cellular communication systems or multiple access protocols - Provides an overview of existing material on cellular communications, multiple access protocols and a combination of the two - Presents extensive research carried out by the authors including extended packet reservation multiple access protocols for TDMA, CDMA and hybrid CDMA/TDMA air interfaces, protocol enhancements and modelling of the physical layer A valuable reference resource for researchers and engineers in the field of cellular communications and packet-based communications, as well as postgraduate and research students in this rapidly evolving field.
Описание: The key feature of future mobile communication systems is the ability to deliver wideband and high bit-rate multimedia services alongside the traditional radio services such as voice, messaging and slow rate data. The broad range of services expected to be supported can be divided into different Quality of Service (Qo classes. However, the provision of such mobile multimedia services under QoS guarantees will not be possible without a utilization of the air interface resources by means of Radio Resource Management (RRM) strategies that ensure the target QoS, the planned coverage area and that offer a high system capacity. Under this framework, the book focuses on the RRM concepts, including the theoretical background that serves as a basis for the description of specific RRM algorithms. The RRM problem for UMTS is presented, and more specifically, for the FDD mode, which is based on a WCDMA scheme. More specifically, the different aspects that are covered include: *Introduces the mobile communications sector and UMTS, including the evolution towards 4G systems, with an overview of the QoS concept which is key for the definition of RRM strategies *Offers a detailed description of the radio interface in UMTS, as the basis for the implementation of RRM strategies *Provides the fundamental concepts related with the development of RRM strategies in WCDMA networks *Analyses particular RRM algorithms in a variety of scenarios, trying to identify the key parameters and factors that influence their performance *Explores the evolution of UMTS towards Beyond 3G systems and the concept of Common RRM in heterogeneous networks with the aid of some algorithm examples This comprehensive title is essential reading for engineers and managers in radio engineering departments of UMTS network operators and UMTS equipment manufacturers. It will also prove insightful to researchers in the field of 3G and Beyond 3G systems and academics in any of these areas.
Автор: Li Название: OFDMA Mobile Broadband Communications ISBN: 1107001609 ISBN-13(EAN): 9781107001602 Издательство: Cambridge Academ Рейтинг: Цена: 8638 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Written by the pioneers of Flash-OFDM, arguably the first commercially developed OFDMA-based mobile broadband system in the world, this book teaches OFDMA from first principles, enabling readers to understand mobile broadband as a whole. The book examines the key requirements for data-centric mobile; how OFDMA fits well with data networks; why mobile broadband needs to be IP-based; and how to bridge communications theory to real-world air interface design and make a good system choice between performance and complexity. It also explores the future of wireless technologies beyond conventional cellular architecture. One of the key challenges faced by newcomers to this field is how to apply the wireless communications theory and principles to the real world and how to understand sophisticated commercial systems such as LTE. The authors use their firsthand experience to help graduate students, researchers and professionals working on 4G to bridge the gap between theory and practice.
Описание: This book will provide a technical system overview of 3G evolved networks which cannot be found in standard documents and other public material, opening the door to SAE/LTE (System Architecture Evolution / Long Term Evolution). The intention is not to rephrase the standard documents (as this may be seen in some publications) but rather to present the 3G evolution in a pragmatic way, providing links between the different pieces and trying to be as concrete as possible. A key element is the focus on inheritance and migration from 2G/3G systems towards "evolved 3G", rather than describing the new system as standing alone, so that the reader can understand the foundations and identify what the transition path for the end-user would be, as well as for the network operator. Other topics covered are: the physical radio layer, network architecture and the main services built on top of "evolved 3G.
Описание: This book will not only provide an accessible and comprehensible description of the first release and (beyond) of the new LTE standard, but importantly it will also provide the fundamental theoretical basis, which is essential to the development of a deep understanding of the concepts used in LTE. By developing the reader's understanding of the theoretical limits and how the theory has been applied to the practical standard, the book will provide the foundation necessary for engineers to focus their implementation efforts on the most critical aspects, and for researchers to identify the most fruitful areas for further development and future evolution. The book will provide a good balance between theory and practice. Particular effort will be devoted to explaining the theoretical concepts in an intuitive and comprehensive way, while retaining scientific rigour. Importantly, the goal of the book is not to make a collection of 3GPP contributions or to regurgitate specification documents, but rather to link their contents in a coherent and lucid explanation, highlighting the implications for practical systems and comparing / contrasting with the now well-known W-CDMA/HSPA standards. The book will focus primarily on the physical layer, but will also cover the higher protocol layers and the architecture to a sufficient degree for the reader to gain an overall understanding of the system. The book covers: Introduction and Background, Network Architecture, Protocols, Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Access (OFDMA), Detailed Downlink Physical Layer Design, Multiple antenna techniques, Broadcast Operation, Uplink theory and practicalities, Detailed Uplink Physical Layer Design, Uplink Procedures, Physical layer procedures, Handover and Mobility, Network Deployment, RF Impacts, Conclusions and Future Developments
Описание: Providing an accessible introduction to all stages of planning and optimizing UMTS, HSPA, and LTE cellular networks, this book supplies a comprehensive explanation of the fundamental aspects of current and future cellular networks. It starts with an overview of each type of network, including basic techniques and channel models. Next, it examines the challenges operators and vendors are likely to face and explains the critical role network planning and optimization play in addressing these challenges. The book details effective system level simulation methods and describes key techniques in planning, troubleshooting, and optimizing these networks.
Описание: This book builds on the success of its predecessor, offering the same comprehensive system-level understanding built on explanations of the underlying theory, now expanded to include complete coverage of Release 9 and the developing specifications for LTE-Advanced.
Описание: This book provides a technical overview of Single Carrier FDMA (SC-FDMA). SC-FDMA is currently a working assumption for the uplink radio air interface in the 3GPP Long Term Evolution (long term evolution). The book places SC-FDMA in the wider context of wireless communications technology and will provide readers with an in-depth overview and tutorial on SC-FDMA technologies over ten chapters.
Описание: From the editors of the highly successful WCDMA for UMTS, this new book provides a compreheive and up-to-date reference to High Speed Packet Access (HSPA) technologies for WCDMA. The editors cover both HSDPA and HSUPA, including an in-depth description and explanation of 3GPP standards, and expected performance based on simulations and first measurements. The text also discusses the impact of HSDPA and HSUPA on network dimensioning, covers applications and end-to-end performance in detail, and includes a section on radio frequency requirements and terminal design considerations. The most comprehensive and advanced guide to the HSDPA (High Speed Downlink Packet Access) and HSUPA (High Speed Uplink Packet Access) technologies and standardisation, HSDPA/HSUPA for UMTS: *Analyses the impact of HSDPA/HSUPA on network dimensioning, discussing co-existence with R99 (Release 99) and GPRS/EDGE (General Packet Radio Services/ Enhanced Data GSM Environment) *Contains a section on applications and end-to-end (e2e) performance *Includes a chapter on radio frequency (RF) requirements and terminal design considerations, covering different RF bands, multi-band HSDPA and multi-mode HSDPA+EDGE challenges, power consumption *Provides numerous illustrations of 3GPP (Third Generation Partnership Project) standards and performance This title provides excellent coverage of the area for system, element and chip designers, network planners, technical mangers with vendors, operators and application developers. It is also ideal for postgraduates and researchers in related areas.