A body mounted sensor measures an RSS of −70dBm from a wireless video capsule endoscope (WVCE) inside the small intestine. The received power at the reference distance, P0, is −45dBm. Using the deep tissue NIST model,
(a) Give the optimum estimate of the distance of the sensor from the capsule.
(b) Determine the two radiuses associated with the 95% certainty region around the receiver location.