Abstract
Device-to-Device (D2D) communication is regarded as one of the critical technologies for next-generation cellular network architecture, which can improve spectral reuse, bring hop gains, and enhance system capacity. In particular, peer discovery is one of fundamental techniques for D2D communication. However, previous researches on peer discovery ignored the influence of peers' social attributes. This paper proposes a novel peer and service discovery scheme assisted with social network, which quantifies three key social attributes: the trust degree, the similarity degree between users and the center degree of each user according to their historical records. Then, based on these three attributes, the unified metric is utilized to form neighbor lists for peer discovery. Extensive simulations demonstrate the effectiveness of our proposed scheme, which significantly increases the peer discovery ratio and link security compared with the existing schemes.
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