  Simultaneous information and power transfer (SWIPT) is characterised by the
ambiguous role of multi-user interference. In short, the beneficial effect of
multi-user interference on RF energy harvesting is obtained at the price of a
reduced link capacity, thus originating nontrivial trade-offs between the
achievable information rate and the harvestable energy. Arguably, in indoor
environments, this trade-off might be affected by the propagation loss due to
blockage objects like walls. Hence, a couple of fundamental questions arise.
How much must the network elements be densified to counteract the blockage
attenuation? Is blockage always detrimental on the achievable rate-energy
trade-off? In this paper, we analyse the performance of an indoor
multiple-input multiple-output (MIMO) SWIPT-enabled network in the attempt to
shed a light of those questions. The effects of the obstacles are examined with
the help of a stochastic approach in which energy transmitters (also referred
to as power heads) are located by using a Poisson Point Process and walls are
generated through a Manhattan Poisson Line Process. The stochastic behaviour of
the signal attenuation and the multi-user interference is studied to obtain the
Joint Complementary Cumulative Distribution Function (J-CCDF) of information
rate and harvested power. Theoretical results are validated through Monte Carlo
simulations. Eventually, the rate-energy trade-off is presented as a function
of the frequency of walls to emphasise the cross-dependences between the
deployment of the network elements and the topology of the venue.
