  Stochastic geometry (SG) has been widely accepted as a fundamental tool for
modeling and analyzing cellular networks. However, the fading models used with
SG analysis are mainly confined to the simplistic Rayleigh fading, which is
extended to the Nakagami-m fading in some special cases. However, neither the
Rayleigh nor the Nakagami-m accounts for dominant specular components (DSCs)
which may appear in realistic fading channels. In this paper, we present a
tractable model for cellular networks with generalized two-ray (GTR) fading
channel. The GTR fading explicitly accounts for two DSCs in addition to the
diffuse components and offers high flexibility to capture diverse fading
channels that appear in realistic outdoor/indoor wireless communication
scenarios. It also encompasses the famous Rayleigh and Rician fading as special
cases. To this end, the prominent effect of DSCs is highlighted in terms of
average spectral efficiency.
