Название: Multiple Access Technology Towards Ubiquitous Networks: Overview and Efficient Designs
Автор: Neng Ye, Xiangming Li, Kai Yang, Jianping An
Издательство: Springer
Год: 2023
Страниц: 194
Язык: английский
Формат: pdf
Размер: 10.2 MB

This book investigates the multiuser communication and its key technology—multiple access technology, as well as transceiving design methods. Multiple access methods toward B5G and 6G currently allows the superposition transmissions of multiuser signals with controllable mutual interference. By deploying advanced multiuser detector, current technology significantly enhances the connectivity, improves the spectral efficiency and simplifies the signaling interactions. Considering that the major challenge of current multiple access technology is the design of transceiver due to the overlapped and distorted signals from multiple users, we analyze the promising candidate multiple access schemes and then develop some sights on how to formulate the transmit signals and how to achieve efficient symbol recovery. Specifically, the incorporation of constellation rotation, rate splitting and deep learning techniques in enhancing the transmission efficiency of multiple access technology are considered.

The future wireless communication networks are expected to provide ubiquitous massive coverage to meet the requirements of diversified applications. With an exponential increase of the number of users and devices, it is challenging to establish fast and reliable connections in the ubiquitous network. As the core technology in the evolution of wireless communication systems, multiple access technology can enable effective massive connections and has become the prominent research trend for ubiquitous networks. The goal of this book is to provide readers with a comprehensive overview of the state-of-the-art multiple access technologies for ubiquitous network, with a focus on the novel ubiquitous multiple access technologies, the signal construction techniques of multiple access and the enhanced multiple access transceivers using Artificial Intelligence (AI). For each of these topics, this book has tried to provide an advanced introduction, blending the basic multi-user information principles with the advanced multiple access models and novel application scenarios. In addition, this book has provided elaborate simulation results for each topic to verify the feasibility of the corresponding schemes.

In particular, to have a comprehensive view for the application scenarios of the multiple access technology, this book discusses the evolution and deployment of multiple access in 5G and beyond, followed by the emerging multiple access technologies developed for the ubiquitous non-terrestrial networks. Facing the challenges of massive connections in ubiquitous networks this book investigates the effective signal construction techniques of multiple access, including constellation design and rate splitting. Moreover, the enhancement of multiple access transceivers using AI is presented. Specifically, this book resorts to AI for constructing unified optimization framework and approaching the performance limit of multiple access system, and enhances grant-free multiple access to match the features of Internet of Things (IoT) with Deep Learning (DL). This book systematically describes the theoretical framework and physical layer technologies of ubiquitous access, which can reflect the application prospect for future ubiquitous networks.

We believe that this book can provide useful insights for the theory and method of ubiquitous multiple access, and display the wide application of ubiquitous networks in the future 6G. This book can be used as a reference for graduate students, researchers, and engineers in the field of wireless communications. We do hope that the valuable time devoted to this book will bear fruit in stimulating interest in the study of multiple access technologies.






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