Each sensor in a sensor network takes___________ measurements of physical phenomena such as heat, sound, light ,pressure or motion

Related MCQs

• 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
• Wireless Sensor Networks are networks that consist of sensors that are A: distributed in an ad hoc manner. B: These sensors work with each other to sense some physical phenomenon and then the information gathered is processed to get relevant results. C: Wireless sensor networks consist of protocols and algorithms with self-organizing capabilities.
• 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
• 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
• Each sensor has a finite sensing range, determined by the___________ floor of the sensor
• The error in localization, measured as mean squared error , generally ___________as more sensor measurements are incorporated
• How the leader node maintains and migrates the collaborative processing group. Arrange the following steps in correct order a: sensors are selected to acquire new measurements using the sensor selection algorithm b: after the leader is elected, it initializes a belief state as uniform disk centered at its own location c: as the target moves, the sensors that did not previously detect may begin detecting
• 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.
• Information collected by and transmitted on a sensor network describes conditions of physical environments and requires advanced query interfaces and search engines to effectively support user-level functions
• ___________defines both the physical and MAC layer protocols for most remote monitoring and control as well as sensor network applications