Textbook in PDF format

The book combines internet modeling with the new programming language Julia. It demonstrates Julia's suitability for modeling established internet models and research-oriented topics such as car-to-infrastructure communication and black-box models for load predictions with neural networks. After studying the book and gaining inspiration for further independent analyses, the reader will be able to tackle even more complex modeling tasks in research and development using Julia.
In this book, the Julia programming language is used for selected topics of Internet modeling. The “common thread” is the layered architecture of the Internet: from application to technology. For network operators, beyond the technical performance parameters of transmission rate and transmission duration of IP packets, the user satisfaction values Quality of Experience (QoE) with voice, video, haptics transmission are important. With the increase in transmission performance, the old point-to-point lines are also being replaced by packet transmission in the Internet of Things (IoT), and the topic of Quality of Control (QoC) is gaining importance, currently in the area of assisted/autonomous driving. The complex processes on the internet elude exact mathematical White-Box-Model modeling, and approximate learning modeling methods are being intensively researched and integrated into the standards of network architectures.
The advantages of Julia for the evaluation of simulation results have been discovered for internet modeling with simulation tools. The development of Julia is driven by a vibrant ecosystem. Beyond a programming environment for the usual operating systems, there is the CUDA interface for GPU integration and the execution in the JuliaHub Cloud is also offered. We will not further discuss the interesting, intensively conducted discussion on performance comparisons with other programming environments.
This book is intended for a target audience that:
• has basic knowledge of internet technology,
• likes working with MatLAB and therefore has easy access to Julia,
• is interested in current topics of internet technology.
Each chapter begins with a description of the practical background. This is followed by the development of the model and the implementation with Julia, including the a-picture-is-worth-a-thousand-words presentation of results in diagrams. All Julia programs are available for download at GitHub and are labeled with the corresponding figure numbers. The most important pieces of code are explained in the book text. Readers who are only interested in new internet topics can skip the Julia sections