Confidence Interval of Peak-Based Distance Estimation in Diffusive Molecular Communication

Molecular Communication (MC) is a bio-inspired communication paradigm, where chemical signals (molecules) carry information. Using molecules as information carriers, rather than electrons or electromagnetic waves, allows communication in environments not considered before, as inside the human body or between nano-machines. This form of communication is particularly interesting due to its simplicity and the low energy cost with respect to the other communication systems.In this article, a specific aspect, which has been not given much attention in literature yet, is examined. Starting from the impulse response estimated for an MC diffusive channel between a point transmitter and a fully absorbing receiver in a three-dimensional space, the confidence interval of the distance from transmitter to receiver is estimated, based on the peak value of the channel impulse response. The analysis adopts the well-known Clopper-Pearson method for confidence interval evaluation.