Proactive Coded Caching Scheme for D2D Networks

TL;DR

This paper introduces a secure coded caching scheme for D2D networks that ensures file privacy and secure delivery, addressing privacy concerns overlooked by previous schemes, and achieves near-optimal performance with large files and cache sizes.

Contribution

It proposes a novel secure coded caching scheme for D2D networks that guarantees file privacy and secure delivery, improving upon existing methods.

Findings

Achieves order-optimal performance with large files and cache sizes.

Guarantees both file privacy and secure delivery.

Addresses privacy leakage risks in existing coded caching schemes.

Abstract

Coded caching and device-to-device (D2D) communication are two effective techniques for alleviating network traffic. Secure transmission and file privacy have also become critical concerns in these domains. However, prevailing coded caching schemes typically assume that a user's cached content is inaccessible to others, overlooking the risk of file privacy leakage due to attacks targeting the cache itself. In this paper, we propose a secure coded caching scheme for D2D networks that guarantees both file privacy and secure delivery. We demonstrate that the proposed scheme achieves order-optimal performance when the file size is sufficiently large and the cache memory is ample.