Question 1

_______________ is essential for any WSN application.

Accepted Answer

Time synchronization and localization are both essential for Wireless Sensor Network (WSN) applications. Time synchronization ensures that all sensor nodes in the network operate in unison, which is crucial for coordinating tasks, data fusion, and energy conservation. Localization is necessary for determining the physical positions of sensor nodes, which is vital for context-aware applications, tracking, and monitoring tasks.

Question 2

For outdoor wireless sensor networks ________ is used for localization

Accepted Answer

D

Question 3

Choose the correct statement

Accepted Answer

B

Question 4

Tracking problem can be described as the solution of a

Accepted Answer

Tracking problems involve solving a series of localization problems over successive time intervals to monitor the position of an object as it moves over time.

Question 5

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

Accepted Answer

The answer of Localization accuracy is the _____________ distance between...

Question 6

A typical GPS receivers achieve 15 meters accuracy with 95% precision. This means that in 95% of all measurements you stay in the radius of 15 meters, whereas in the remaining 5% you have _____ errors.

Accepted Answer

In the remaining 5% of measurements, the errors would be larger than the 15 meters accuracy achieved with 95% precision, as this statement specifies the performance within the 95% confidence interval.

Question 7

Localization methods have _______________ costs associated with it

Accepted Answer

Space cost, communication cost, and infrastructure cost are all associated with localization methods.

Question 8

Few node consist of GPS installed on it to simplify the localization are called as _________.

Accepted Answer

Anchor nodes are equipped with GPS or other means to know their exact location, which helps in determining the positions of other nodes in a network.

Question 9

Anchor nodes are the nodes having ________.

Accepted Answer

Anchor nodes are equipped with GPS to know their exact location, which helps in determining the positions of other nodes in a network.

Question 10

If the target cooperates itself in localization & tracking, then it is called as _________ target tracking.

Accepted Answer

When the target cooperates in its own localization and tracking, it can be described using any of the terms "active," "collaborative," or "cooperative" target tracking. These terms are often used interchangeably in this context to denote the target's participation in the tracking process.

Question 11

Range Based target tracking algorithm relies on

Accepted Answer

Range Based target tracking algorithms rely on both distance and range calculations to determine the position of a target.

Question 12

Range free target tracking algorithm relies on

Accepted Answer

The answer of Range free target tracking algorithm relies on
...

Question 13

Pre-deployment Schemes provide sensor nodes with their location information _________ them in the environment.

Accepted Answer

Pre-deployment schemes provide sensor nodes with their location information before they are installed in the environment, ensuring they know their position prior to deployment.

Question 14

Pre-deployment Schemes provide sensor nodes with their location information of consist of _________

Accepted Answer

Pre-deployment schemes in the context of sensor networks often involve providing sensor nodes with their location information, which can include both symbolic information (like identifiers or names for locations) and postal addresses. This helps in identifying and managing the nodes based on their physical or logical locations.

Question 15

_____________ has strategy of Non-anchor nodes try to locate themselves by sensing the positions of anchor nodes in their proximity

Accepted Answer

Anchor nodes are nodes with known positions. Non-anchor nodes try to locate themselves by sensing the positions of anchor nodes in their proximity. This is the basic idea behind proximity scheme of localization.

Question 16

_____________ has strategy of Non-anchor nodes try to locate themselves by sensing the positions of anchor nodes in their proximity

Accepted Answer

Post-deployment localization involves non-anchor nodes determining their positions by sensing the locations of nearby anchor nodes after the network has been deployed.

Question 17

In location mules, there are no ____________ in the environment. Instead, a _________ with an on-board GPS receiver is used.

Accepted Answer

In location mules, traditional installed anchors (fixed reference points) are not used in the environment. Instead, a mobile node equipped with an on-board GPS receiver is utilized to determine positions or facilitate communication.

Question 18

The ________ the transmission power of the mule, then ________ is the accuracy of positioning.

Accepted Answer

The weaker the transmission power of the mule, the better the accuracy of positioning. This is because a weaker transmission power means that the signal is less likely to be reflected off of objects in the environment, which can cause errors in positioning.

Question 19

In triangulation, need to measure the angle between the sensor node and the anchors and use this information to compute nodes own position.

Accepted Answer

Triangulation involves measuring angles from known points (anchors) to determine the position of a sensor node.

Question 20

For trilateration, we measure distances to at least _______ anchors.

Accepted Answer

Trilateration requires measuring distances to at least three anchors to determine a position in a two-dimensional space.

Quiz 16: Localization and Tracking Methods in Wireless Sensor Networks

_______________ is essential for any WSN application.

For outdoor wireless sensor networks ________ is used for localization

Choose the correct statement

Tracking problem can be described as the solution of a

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

A typical GPS receivers achieve 15 meters accuracy with 95% precision. This means that in 95% of all measurements you stay in the radius of 15 meters, whereas in the remaining 5% you have _____ errors.

Localization methods have _______________ costs associated with it

Few node consist of GPS installed on it to simplify the localization are called as _________.

Anchor nodes are the nodes having ________.

If the target cooperates itself in localization & tracking, then it is called as _________ target tracking.

Range Based target tracking algorithm relies on

Range free target tracking algorithm relies on

Pre-deployment Schemes provide sensor nodes with their location information _________ them in the environment.

Pre-deployment Schemes provide sensor nodes with their location information of consist of _________

_____________ has strategy of Non-anchor nodes try to locate themselves by sensing the positions of anchor nodes in their proximity

_____________ has strategy of Non-anchor nodes try to locate themselves by sensing the positions of anchor nodes in their proximity

In location mules, there are no ____ in the environment. Instead, a _ with an on-board GPS receiver is used.

The the transmission power of the mule, then is the accuracy of positioning.

In triangulation, need to measure the angle between the sensor node and the anchors and use this information to compute nodes own position.

For trilateration, we measure distances to at least _______ anchors.