Preface:

The primary principle of designing a wireless communication system is to ensure the security of wireless data transmission. Different from cryptography schemes, the physical-layer secure (PLS) technology including channel coding and precoding takes full advantage of the physical characteristics (i.e., noise, fading, interference) of wireless channel to obtain a secure and efficient data transmission. By adjusting the reflection amplitude and phase of each IRS element, friendly multipaths can be created to achieve energy consumption reduction, signal enhancement and coverage extension. In view of these advantages, the IRS-aided PLS communication can be viewed as a new research direction.

Presently, there is no book focusing on the IRS-aided PLS communication networks. This book presents concepts and technologies, which are related to the topic of IRS-aided PLS communication in different application scenarios. Additionally, some insightful discussions and effective recommendations are available in this book.

The main contributions of this book are as follows:

(1)To address the problem of conventional directional modulation (DM) that Alice only transmits single confidential bit stream (CBS) to Bob with multiple antennas in a line-of-sight channel, IRS is proposed to create friendly multipaths for DM such that two or more CBSs can be transmitted from Alice to Bob. The secrecy rates of the proposed two algorithms can approximately double that of IRS-based DM with single CBS for massive IRS in the high signal-to-noise ratio region.

(2)For the case of global channel state information (CSI), this book first proves that perfect covertness is achievable with the aid of the IRS even for a single-antenna transmitter, which is impossible without an IRS. For the case without the warden’s instantaneous CSI, this book first derives the covertness constraint analytically facilitating the optimal phase shift design. Then, three hardware-related constraints on the IRS's reflection amplitudes are considered and their optimal designs together with the optimal transmit power are determined.

全书链接：

https://link.springer.com/book/10.1007/978-3-031-41812-9?sap-outbound-id=828FFD1EA5C44B5C7DACE64452519C11E83EBD69&utm_source=automation&utm_medium=email&utm_campaign=000_LAN36_0000019290_Book%20author%20congrats%20fallback&utm_content=EN_34155_20231013&mkt