Enriched K-Tier HetNet Model to Enable the Analysis of User-Centric Small Cell Deployments

Understand

One of the principal underlying assumptions of current approaches to the analysis of heterogeneous cellular networks (HetNets) with random spatial models is the uniform distribution of users independent of the base station (BS) locations.

• This assumption is not quite accurate, especially for user-centric capacity-driven small cell deployments where low-power BSs are deployed in the areas of high user density, thus inducing a natural correlation in the BS and user locations.
• In order to capture this correlation, we enrich the existing K-tier Poisson Point Process (PPP) HetNet model by considering user locations as Poisson Cluster Process (PCP) with the BSs at the cluster centers.
• In particular, we provide the formal analysis of the downlink coverage probability in terms of a general density functions describing the locations of users around the BSs.