Downlink Coverage Analysis in a Heterogeneous Cellular Network

TL;DR

This paper provides an analytical framework for downlink SINR coverage probability in heterogeneous cellular networks with multiple tiers, considering various realistic factors like shadow fading, path-loss, and cell association biases.

Contribution

It introduces a comprehensive analytical model for SINR coverage in multi-tier heterogeneous networks with arbitrary parameters and association schemes.

Findings

Analytical expression for coverage probability derived

Model accounts for shadow fading, path-loss, and bias factors

Applicable to general heterogeneous network configurations

Abstract

In this paper, we consider the downlink signal-to-interference-plus-noise ratio (SINR) analysis in a heterogeneous cellular network with K tiers. Each tier is characterized by a base-station (BS) arrangement according to a homogeneous Poisson point process with certain BS density, transmission power, random shadow fading factors with arbitrary distribution, arbitrary path-loss exponent and a certain bias towards admitting the mobile-station (MS). The MS associates with the BS that has the maximum SINR under the open access cell association scheme. For such a general setting, we provide an analytical characterization of the coverage probability at the MS.