使用MATLAB深入理解LTE技术

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"《Understanding LTE with MATLAB》是Dr. Houman Zarrinkoub撰写的一本书，专注于使用MATLAB实现LTE（长期演进）技术的物理层算法。这本书旨在从数学建模到仿真和原型设计，深入浅出地解析LTE的工作原理。" 在通信领域，LTE是一种广泛采用的4G无线通信标准，它提供了高速的数据传输能力，为移动互联网和多媒体应用提供了坚实的基础。MATLAB，全称为“矩阵实验室”，是一款强大的数值计算和数据可视化软件，常被用于科学计算、工程模拟以及算法开发等多个领域。本书《Understanding LTE with MATLAB》通过MATLAB这一工具，帮助读者理解LTE系统的核心概念，包括： 1. **物理信道与信号处理**：书中可能涵盖了LTE的下行链路和上行链路的物理信道，如PUSCH（上行共享信道）、PDSCH（下行共享信道）、PDCCH（下行控制信息信道）等，以及相关的调制和多址接入技术，如OFDM（正交频分复用）和MIMO（多输入多输出）。 2. **物理层算法**：这可能包括信道编码（如Turbo码或LDPC码）、信道估计、均衡技术、功率控制、调度算法等，这些都是保证数据可靠传输的关键部分。 3. **MATLAB建模**：作者会详细介绍如何使用MATLAB来构建LTE系统的数学模型，进行仿真，以验证理论分析并优化系统性能。读者可以学习如何设置仿真参数，运行系统级和物理层的仿真，以及如何分析和解读结果。 4. **原型设计与测试**：除了理论分析，书中的MATLAB实现还可能涉及实际硬件接口，比如使用USRP（通用软件无线电外围设备）或其他硬件平台，将MATLAB模型转化为可执行的原型系统，进行实地测试。 5. **版权与法律信息**：出版商强调了对知识产权的尊重，提醒读者在复制、存储或传播书籍内容时需遵守版权法规。通过阅读本书，读者不仅可以深入理解LTE的技术细节，还能掌握利用MATLAB进行通信系统设计和分析的技能，这对于从事通信技术研发、学术研究或者工程实践的专业人士来说，都是非常有价值的资源。

xiv Preface

language is necessary to follow the text. This book is intended for professors, researchers, and

students in electrical and computer engineering departments, as well as engineers, designers,

and implementers of wireless systems. What they learn from both a technical and a program-

ming point of view may be quite applicable to their everyday work. Depending on the reader’s

function and the need to implement or teach the LTE standard, this book may be considered

introductory, intermediate, or advanced in nature.

The book is conceptually composed of two parts. The rst deals with modeling the PHY of

the LTE standard and with MATLAB algorithms that enable the reader to simulate and verify

various components of the system. The second deals with practical issues such as simulation

of the system and implementation and prototyping of its components. In the rst chapter we

provide a brief introduction to the standard, its genesis, and its objective, and we identify four

enabling technologies (OFDM, MIMO, turbo coding, and dynamic link adaptations) as the

components responsible for its remarkable performance. In Chapter 2, we provide a quick and

sufciently detailed overview of the LTE PHY specications. Chapter 3 introduces the mod-

eling, simulation, and implementation capabilities of MATLAB and Simulink that are used

throughout this book. In Chapters 4–7 we treat each of the enabling technologies of the LTE

standard (modulation and coding, OFDM, MIMO, and link adaptations) in detail and create

models in MATLAB that iteratively and progressively build up LTE PHY components based

on these. We wrap up the rst part of the book in Chapter 8 by putting all the enabling tech-

nologies together and showing how the PHY of the LTE standard can be modeled in MATLAB

based on the insight obtained in the preceding chapters.

Chapter 9 includes a discussion on how to accelerate the speed of our MATLAB programs

through the use of a variety of techniques, including parallel computing, automatic C code

generation, GPU processing, and more efcient algorithms. In Chapter 10 we discuss some

implementation issues, such as target environments, and how they affect the programming

style. We also discuss xed-point numerical representation of data as a prerequisite for hard-

ware implementation and its effect on the performance of the standard. Finally, in Chapter 11

we summarize what we have discussed and provide some directions for future work.

Any effort related to introducing the technical background of a complex communications

system like LTE requires addressing the question of scope. We identify three conceptual ele-

ments that can combine to provide a deep understanding of the way the LTE standard works:

• The theoretical background of the enabling technologies

• Details regarding the standard specications

• Algorithms and simulation testbenches needed to implement the design

To make the most of the time available to develop this book, we decided to strike a balance in

covering each of these conceptual elements. We chose to provide a sufcient level of discussion

regarding the theoretical foundations and technical specications of the standard. To leverage

our expertise in developing MATLAB applications, we decided to cover the algorithms and

testbenches that implement various modes of the LTE standard in further detail. This choice

was motivated by two factors:

1. There are many books that extensively cover the rst two elements and do not focus on

algorithms and simulations. We consider the emphasis on simulation one of the innovative

characteristics of this work.

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