# Digital Communication Forensics in 6G and beyond Networks
## 2 Literature Review  
The constraints of 5G networks are not only being uncovered as additional 5G networks are implemented, but they are also motivating exploratory studies on 6G networks as a next-generation alternative. Fundamental security and privacy issues related with 6G technologies are part of these analyses.  
The authors in [8] presented \"Security and privacy in 6G networks: New areas and new challenges\", which presented numerous limitations for 5G networks; given its popularity, it has boosted the exploratory research of 6G networks to present solutions to these limitations. Investigations into the basic security and privacy concerns related to 6G technology were part of these solutions. This research involved performing a survey on the existing conditions of security and privacy in 6G, serving as a platform for subsequent studies. The study started with the formulation of a historical analysis of earlier network technologies, the development potential of sixth-generation networks, and the four key factors of security and privacy in 6G.  
The authors in [18] presented \"Survey on Intelligence Edge Computing in 6G: Characteristics, Challenges, Potential Use Cases, and Market Drivers\". Intelligence edge computing (IEC) is the primary factor that enables the emergence of fifth-generation networks and subsequent generations, that is, it is the promising backbone of future services, as well as the integration of wireless communication systems with 5G. IEC is one of the 5G technologies that allows several other use cases and applications, including big data analytics, virtual and augmented reality, and driverless cars. Future directions in the IEC with 6G networks were also explored. Potential use cases, market drivers, and new difficulties were given special attention.  
\"A Comprehensive Survey of 6G Wireless Communications\" was presented in [19]. After the spread of 5G communications worldwide, much attention has been given to 6G communications, especially by academia and the industry. Compared with the previous generation, 6G has a higher spectrum efficiency, shorter delay, higher transmission rate, wider frequency band, higher communication ability, and wider coverage, as well as a stronger anti-interference ability. An in-depth explanation of 6G wireless communications is surveyed in terms of applications, technologies, requirements, key features, and challenges, as well as a survey of 6G technology from the privacy and security side. It detailed many sixth-generation technologies and the challenges they face, especially smart surfaces, AI, THz, network integration between air, space, land, and sea, and the massive cell-free MIMO network. Given that the current wireless communication systems will be expected to be outperformed by 6G, the techniques of privacy and security that may help in protecting the communication of data in 6G must be discussed, as its development is expected.  
The authors in [20] presented the modern network forensics framework challenges that are faced when detecting and preventing cybercrime. The study gives a general description of the fundamental organization of network forensics techniques and explains how they operate to identify the type and severity of network crimes. The paper additionally provides a topic taxonomy for classifying network forensics approaches based on an extensive review of the literature. The categorization was performed during forensic investigations based on the target datasets and implementation strategies. Numerous network forensics techniques have been compared based on their forensic processing, execution definition, target instance, objective functions, target dataset, investigation duration, mechanisms, and framework features. It also discusses various open research issues that may arise when selecting a subject for further network forensics research, as well as the most effective techniques.