Analysis of LTE-A Heterogeneous Networks with SIR-based Cell Association and Stochastic Geometry

다국어 초록 (Multilingual Abstract)

This paper provides an analytical framework to characterizethe performance of heterogeneous networks (HetNets),where the positions of base stations and users are modeled by spatialPoisson point processes (stochastic geometry). We have beenable to formally derive outage probability, rate coverage probability,and mean user bit-rate when a frequency reuse of K anda novel prioritized SIR-based cell association scheme are applied.
A simulation approach has been adopted in order to validate ouranalytical model; theoretical results are in good agreement withsimulation ones. The results obtained highlight that the adoptedcell association technique allows very low outage probability andthe fulfillment of certain bit-rate requirements by means of adequateselection of reuse factor and micro cell density. This analyticalmodel can be adopted by network operators to gain insights oncell planning. Finally, the performance of our SIR-based cell associationscheme has been validated through comparisons with otherschemes in literature.

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