Abstract
The recent research of 5G show that the most feasible solution to improve the network capacity is the ultra dense deployment of small cells. Inter-cell interference is the key factor in the dense deployment of small cells which limit the system performance. In this paper, we focus on the interference analysis and modeling of heterogeneous small-cell networks (HSCN). Also, the ability to analyze and accurately predict the impact of interference via the use of an interference model is an essential way to improve the network performance. With the establishment of heterogeneous network structure, the statistical characteristics of both strongest interference and overall interference are analyzed, we get the statistical characteristics of the strong interference and the total interference, so as to determine the total interference is determined by the strong interference and the relationship between them is established, and the related model is established. Finally, the analytical conditions on the interference system model parameters are derived and the distributions are determined, on which the statistical properties of total interference power can be accurately modeled by several strong interference.
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