Privacy-Preserving and Secure Spectrum Sharing for Database-Driven Cognitive Radio Networks

• URL: http://arxiv.org/abs/2602.15705v1
• Date: Tue, 17 Feb 2026 16:39:07 GMT
• Title: Privacy-Preserving and Secure Spectrum Sharing for Database-Driven Cognitive Radio Networks
• Authors: Saleh Darzia, Gökcan Cantalib, Attila Altay Yavuza, Gürkan Gür,
• Abstract summary: Database-driven cognitive radio networks (DB-CRNs) enable dynamic spectrum sharing through geolocation databases.<n>Existing approaches address these issues in isolation and lack a unified, regulation-compliant solution under realistic adversarial conditions.<n>We present a unified security framework for DB-CRNs that simultaneously provides location privacy, user anonymity, verifiable location, and DoS resilience.
• Score: 0.06999740786886537
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Database-driven cognitive radio networks (DB-CRNs) enable dynamic spectrum sharing through geolocation databases but introduce critical security and privacy challenges, including mandatory location disclosure, susceptibility to location spoofing, and denial-of-service (DoS) attacks on centralized services. Existing approaches address these issues in isolation and lack a unified, regulation-compliant solution under realistic adversarial conditions. In this work, we present a unified security framework for DB-CRNs that simultaneously provides location privacy, user anonymity, verifiable location, and DoS resilience. Our framework, denoted as SLAPX, enables privacy-preserving spectrum queries using delegatable anonymous credentials, supports adaptive location verification without revealing precise user location, and mitigates DoS attacks through verifiable delay functions (VDFs) combined with RLRS-based rate limiting. Extensive cryptographic benchmarking and network simulations demonstrate that SLAPX achieves significantly lower latency and communication overhead than existing solutions while effectively resisting location spoofing and DoS attacks. These results show that SLAPX is practical and well-suited for secure next-generation DB-CRN deployments.

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