Secure Authentication and Privacy-Preserving Localization for V2X Communications in Next-Generation Vehicular Networks
9th International Balkan Conference on Communications and Networking, Balkancom 2026, Ulcinj, Karadağ, 16 - 19 Haziran 2026, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/balkancom71095.2026.11605021
- Basıldığı Şehir: Ulcinj
- Basıldığı Ülke: Karadağ
- Anahtar Kelimeler: 6G vehicular networks, differential privacy, RSSI-based localization, V2I communication, V2V communication
- Kocaeli Üniversitesi Adresli: Evet
Özet
Future-generation 6G vehicular networks are expected to evolve into intelligent cyber-physical infrastructures which provide intelligent decision-making and ultra-reliable communication mechanisms. In this paper we propose a secure authentication and privacy-preserving localization for vehicle-to-everything (V2X) communications within the vehicular networks. The methodology presents dedicated HMAC-based lightweight authentication algorithms for both vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) scenarios, ensuring data integrity, message authenticity, and resistance to impersonation and replay attacks. After authentication, vehicle positions are estimated using RSSI-based multilateration by combining signal measurements collected from RSUs and neighboring vehicles. To protect sensitive location information, a differential privacy (DP) mechanism is applied before sharing location data. The methodology is implemented using a REST API simulation environment and evaluated using Postman. Experimental results show that the proposed methods achieve efficient communication performance with low latency overhead. In the V2I scenario, transfer start latency for authentication decreases from 71.38 ms to 65.02 ms, while download time improves from 8.24 ms to 2.37 ms across repeated requests. In the V2V scenario, authentication transfer latency decreases from 67.19 ms to 32.26 ms, and localization transfer latency reduces from 62.03 ms to 18.84 ms, demonstrating improved efficiency during session reuse. These results indicate that the proposed approach provides secure authentication, reliable localization, and low communication overhead for vehicular communications. The proposed solution therefore offers a practical and scalable approach for privacy-aware localization in future 6G vehicular networks.