Wireless communication, sensing, and REM: A security perspective

The diverse requirements of next-generation communication systems necessitate awareness, flexibility, and intelligence as essential building blocks of future wireless networks. The awareness can be obtained from the radio signals in the environment using wireless sensing and radio environment mapping (REM) methods. This is, however, accompanied by threats such as eavesdropping, manipulation, and disruption posed by malicious attackers. To this end, this work analyzes the wireless sensing and radio environment awareness mechanisms, highlighting their vulnerabilities and provides solutions for mitigating them. As an example, the different threats to REM and its consequences in a vehicular communication scenario are described. Furthermore, the use of REM for securing communications is discussed and future directions regarding sensing/REM security are highlighted

Context-aware physical layer security for future wireless networks

..

Radio environment monitoring

The high number of wireless devices available and the inherent relationship between electromagnetic wave propagation and the physical environment have made these devices and their network architectures ideal sources of information for noncommunication-related applications, such as home monitoring and heart beat detection. The number and significance of wireless sensing use-cases highlight the importance of a framework to acquire information on the radio environment. This chapter introduces such a framework, goes over relevant technologies, and provides a case study for environment sensing. The most well-studied area of radio environment map (REM) is perhaps the radio frequency map construction. The chapter provides this as an example for the working of the REM architecture. The generalized radio environment monitoring framework enables information gathering and radio and physical environment awareness, behaving as an independent entity capable of feeding information to other entities

Wireless sensing – enabler of future wireless technologies

With the completion of the 5G standardization efforts, the wireless communication world has now turned to the road ahead, the future wireless communication visions. One common vision is that future networks will be flexible, or able to accommodate an even richer variety of services with stringent, often conflicting requirements. This ambitious feat can only be accomplished with a ubiquitous awareness of the radio and physical environment. To this end, this paper highlights the importance of wireless sensing as a means for radio environment awareness and surveys wireless sensing methods under different domains. Then, a review of wireless sensing from a standardization perspective is given. These standardization efforts will provide the initial landscape upon which research into future wireless sensing methods will be built upon. Therefore, the paper is concluded by outlining imperative standardization requirements and future directions in wireless sensing.TÜBİTA

CSI-based NOMA for Integrated Sensing and Communication

Integrated sensing and communication (ISAC) is a key enabler of fifth-generation and beyond networks and a multitude of futuristic applications. However, the coexistence, scheduling and  scarcity issues due to additional sensing signals are valid concerns. If a communicating device also requires sensing, it can use its communication signal for sensing. But if a non-communicating device requires sensing, the additional sensing signals will cause extra traffic in the network. Thus, in this letter, a novel integrated sensing and communication with iterative channel estimation (ISAC-ICE) method is proposed to provide spectral efficiency while maintaining sensing and communication performance. The simulation results and complexity analysis demonstrate that the proposed method with a linearithmic complexity enables non-orthogonal multiple accessing (NOMA) of ISAC.</p