Privacy-Preserving Offloading for Large Language Models in 6G Vehicular Networks

Fuente: arXiv
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Hauptverfasser: Badidi, Ikhlasse, Khiyaoui, Nouhaila El, Riany, Aya, Elallid, Badr Ben, Abouaomar, Amine
Format: Preprint
Veröffentlicht: 2025
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author Badidi, Ikhlasse
Khiyaoui, Nouhaila El
Riany, Aya
Elallid, Badr Ben
Abouaomar, Amine
author_facet Badidi, Ikhlasse
Khiyaoui, Nouhaila El
Riany, Aya
Elallid, Badr Ben
Abouaomar, Amine
contents The integration of Large Language Models (LLMs) in 6G vehicular networks promises unprecedented advancements in intelligent transportation systems. However, offloading LLM computations from vehicles to edge infrastructure poses significant privacy risks, potentially exposing sensitive user data. This paper presents a novel privacy-preserving offloading framework for LLM-integrated vehicular networks. We introduce a hybrid approach combining federated learning (FL) and differential privacy (DP) techniques to protect user data while maintaining LLM performance. Our framework includes a privacy-aware task partitioning algorithm that optimizes the trade-off between local and edge computation, considering both privacy constraints and system efficiency. We also propose a secure communication protocol for transmitting model updates and aggregating results across the network. Experimental results demonstrate that our approach achieves 75\% global accuracy with only a 2-3\% reduction compared to non-privacy-preserving methods, while maintaining DP guarantees with an optimal privacy budget of $\varepsilon = 0.8$. The framework shows stable communication overhead of approximately 2.1MB per round with computation comprising over 90\% of total processing time, validating its efficiency for resource-constrained vehicular environments.
format Preprint
id arxiv_https___arxiv_org_abs_2509_05320
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Privacy-Preserving Offloading for Large Language Models in 6G Vehicular Networks
Badidi, Ikhlasse
Khiyaoui, Nouhaila El
Riany, Aya
Elallid, Badr Ben
Abouaomar, Amine
Cryptography and Security
Machine Learning
The integration of Large Language Models (LLMs) in 6G vehicular networks promises unprecedented advancements in intelligent transportation systems. However, offloading LLM computations from vehicles to edge infrastructure poses significant privacy risks, potentially exposing sensitive user data. This paper presents a novel privacy-preserving offloading framework for LLM-integrated vehicular networks. We introduce a hybrid approach combining federated learning (FL) and differential privacy (DP) techniques to protect user data while maintaining LLM performance. Our framework includes a privacy-aware task partitioning algorithm that optimizes the trade-off between local and edge computation, considering both privacy constraints and system efficiency. We also propose a secure communication protocol for transmitting model updates and aggregating results across the network. Experimental results demonstrate that our approach achieves 75\% global accuracy with only a 2-3\% reduction compared to non-privacy-preserving methods, while maintaining DP guarantees with an optimal privacy budget of $\varepsilon = 0.8$. The framework shows stable communication overhead of approximately 2.1MB per round with computation comprising over 90\% of total processing time, validating its efficiency for resource-constrained vehicular environments.
title Privacy-Preserving Offloading for Large Language Models in 6G Vehicular Networks
topic Cryptography and Security
Machine Learning
url https://arxiv.org/abs/2509.05320