2 research outputs found
Downlink Analysis for a Heterogeneous Cellular Network
In this paper, a comprehensive study of the the downlink performance in a
heterogeneous cellular network (or hetnet) is conducted. A general hetnet model
is considered consisting of an arbitrary number of open-access and
closed-access tier of base stations (BSs) arranged according to independent
homogeneous Poisson point processes. The BSs of each tier have a constant
transmission power, random fading coefficient with an arbitrary distribution
and arbitrary path-loss exponent of the power-law path-loss model. For such a
system, analytical characterizations for the coverage probability and average
rate at an arbitrary mobile-station (MS), and average per-tier load are derived
for both the max-SINR connectivity and nearest-BS connectivity models. Using
stochastic ordering, interesting properties and simplifications for the hetnet
downlink performance are derived by relating these two connectivity models to
the maximum instantaneous received power (MIRP) connectivity model and the
maximum biased received power (MBRP) connectivity models, respectively,
providing good insights about the hetnets and the downlink performance in these
complex networks. Furthermore, the results also demonstrate the effectiveness
and analytical tractability of the stochastic geometric approach to study the
hetnet performance.Comment: 13 pages, 3 figures, 1 table, to be submitted to Transactions on
Wireless Communication
A Primer on Cellular Network Analysis Using Stochastic Geometry
This tutorial is intended as an accessible but rigorous first reference for
someone interested in learning how to model and analyze cellular network
performance using stochastic geometry. In particular, we focus on computing the
signal-to-interference-plus-noise ratio (SINR) distribution, which can be
characterized by the coverage probability (the SINR CCDF) or the outage
probability (its CDF). We model base stations (BSs) in the network as a
realization of a homogeneous Poisson point process of density , and
compute the SINR for three main cases: the downlink, uplink, and finally the
multi-tier downlink, which is characterized by having tiers of BSs each
with a unique density and transmit power . These three
baseline results have been extensively extended to many different scenarios,
and we conclude with a brief summary of some of those extensions