Localization accuracy is the _____________ distance between the estimated and the real position of the sensor node.

Related MCQs

• In case of iterative localization the accuracy of localization ________ with each iteration.
• Once a signal source is inside the sensing range of a sensor, further increasing the sensor density ___________the average distance from a sensor to the signal source, hence improving the SNR
• Node gather enough anchor points and measurements, they compute their own locations. Once they have localized, they also declare themselves as an anchors. In this way, sensor nodes without enough anchors get a chance to localize. This approach is called as ____________ localization.
• From 20 localization measurements, 19 were inside a radius of 15 meters around the true position, while 1 was outside. This results in an accuracy of 15 meters with a precision of __________.
• From 20 localization measurements, 18 were inside a radius of 15 meters around the true position, while 2 was outside. This results in an accuracy of 15 meters with a precision of __________.
• Node A and B 130 meters away and 5 hope separated. Node B and C 170 meters away and 6 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.
• In a typical sensor network, each sensor node operates unethered and has a microprocessor and a small amount of memory for signal processing and task scheduling
• The challenges in sensor network databases A: limited storage on nodes and high communication costs imply that older data has to be discarded B: sensor tasking interacts in numerous ways with the sensor database system
• In triangulation, need to measure the angle between the sensor node and the anchors and use this information to compute nodes own position.
• The error in localization, measured as mean squared error , generally ___________as more sensor measurements are incorporated