  This paper presents a part of our ground-breaking work on evaluation of
buildings in terms of wireless friendliness in the building-design stage. The
main goal is to devise construction practices that provide for a good
performance of wireless networks deployed in buildings. In this paper, the
interference gain (IG) and power gain (PG) are defined as two figures of merit
(FoM) of the wireless performance of buildings. The FoMs bridge the gap between
building design and wireless communications industries. An approach to derive
exact closed-form equations for these FoMs is proposed for the first time. The
derived analytic expressions facilitate straightforward and more
computationally efficient numerical evaluation of the proposed FoMs as compared
to Monte Carlo simulations for well-known indoor propagation models. It is
shown that the derived closed-form expression can be readily employed to
evaluate the impact of building properties, such as the sizes and the aspect
ratios (ARs) of rooms, on the wireless performance. The proposed approach sheds
light to architects on evaluation and design of wireless-friendly building
layouts.
