  In this paper, we study the receiver performance with physical layer security
in a Poisson field of interferers. We compare the performance in two deployment
scenarios: (i) the receiver is located at the corner of a quadrant, (ii) the
receiver is located in the infinite plane. When the channel state information
(CSI) of the eavesdropper is not available at the transmitter, we calculate the
probability of secure connectivity using the Wyner coding scheme, and we show
that hiding the receiver at the corner is beneficial at high rates of the
transmitted codewords and detrimental at low transmission rates. When the CSI
is available, we show that the average secrecy capacity is higher when the
receiver is located at the corner, even if the intensity of interferers in this
case is four times higher than the intensity of interferers in the bulk.
Therefore boundaries can also be used as a secrecy enhancement technique for
high data rate applications.
