Caching Improvement Using Adaptive User Clustering

Salah Eddine Hajri (1) , Mohamad Assaad (1)

1 L2S - Laboratoire des signaux et systèmes

In this article we explore one of the most promising technologies for 5G wireless networks using an underlay small cell network, namely proactive caching. Using the increase in storage technologies and through studying the users behavior, peak traffic can be reduced through proactive caching of the content that is most probable to be requested. We propose a new method, in which, instead of caching the most popular content, the users within the network are clustered according to their content popularity and the caching is done accordingly. We present also a method for estimating the number of clusters within the network based on the Akaike information criterion. We analytically derive a closed form expression of the hit probability and we propose an optimization problem in which the small base stations association with clusters is optimized.

Mots clés: Small cell networks; Data offloading

Domaines: Réseaux et télécommunications [cs.NI]; Théorie de l'information [cs.IT]

Salah Eddine Hajri, Mohamad Assaad. Caching Improvement Using Adaptive User Clustering. 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2016), Jul 2016, Edinburgh, United Kingdom. ⟨10.1109/SPAWC.2016.7536736⟩. ⟨hal-01388727⟩