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Selection of the contribution device for the estimation of RSSI. AP; Access point with the corresponding LOS; Line-of-sight region (light pink color) and the NLOS; NON-line-of-sight region (light blue color) which is the LOS region for the sensor. The white color cells with ‘?’ represent the regions that are in the LOS case for both kind of devices i.e., the sensor and the access point, and require the designation of a contributing device with respect to the minimal path loss.
