Location Privacy in B5G/6G: Systematization of Knowledge
Hannah B. Pasandi, Faith Parastar
TL;DR
Location privacy in B5G/6G faces unprecedented risks due to highly precise localization and ubiquitous data collection across diverse networks. The paper systematizes current knowledge, reviews privacy-preserving mechanisms, and analyzes architectural/infrastructural challenges, proposing decentralized authentication and satellite-enabled approaches. Key contributions include a comprehensive challenges analysis, evaluation of traditional and emerging privacy techniques, and policy-oriented guidance for future research. The findings highlight physical layer security and privacy-by-design as critical pillars to enable trusted, high-precision location services in next-generation networks.
Abstract
As we transition into the era of B5G/6G networks, the promise of seamless, high-speed connectivity brings unprecedented opportunities and challenges. Among the most critical concerns is the preservation of location privacy, given the enhanced precision and pervasive connectivity of these advanced networks. This paper systematically reviews the state of knowledge on location privacy in B5G/6G networks, highlighting the architectural advancements and infrastructural complexities that contribute to increased privacy risks. The urgency of studying these technologies is underscored by the rapid adoption of B5G/6G and the growing sophistication of location tracking methods. We evaluate current and emerging privacy-preserving mechanisms, exploring the implications of sophisticated tracking methods and the challenges posed by the complex network infrastructures. Our findings reveal the effectiveness of various mitigation strategies and emphasize the important role of physical layer security. Additionally, we propose innovative approaches, including decentralized authentication systems and the potential of satellite communications, to enhance location privacy. By addressing these challenges, this paper provides a comprehensive perspective on preserving user privacy in the rapidly evolving landscape of modern communication networks.