Next Generation Wireless Network MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Next Generation Wireless Network, a fundamental topic in the field of Cognitive Radio. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Next Generation Wireless Network MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Next Generation Wireless Network mcq questions that explore various aspects of Next Generation Wireless Network problems. Each MCQ is crafted to challenge your understanding of Next Generation Wireless Network principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Cognitive Radio tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Next Generation Wireless Network MCQs are your pathway to success in mastering this essential Cognitive Radio topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Next Generation Wireless Network. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Next Generation Wireless Network knowledge to the test? Let's get started with our carefully curated MCQs!

Next Generation Wireless Network MCQs | Page 23 of 33

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Q221.
Which among the following is not a common feature between the time of arrival and time difference of arrival?

a.

Straight-line of sight

b.

High resolution system clock

c.

Propagation at speed of light

d.

Shape of curve

Discuss
Answer: (d).Shape of curve Explanation:Time of arrival and time difference of arrival are two time-based approaches. Both approaches require a high-resolution system clock with signals that propagate at the speed of light. It requires a straight line of sight path as the signal delay directly relates to the line of sight distance.
Q222.
Which among the following is not a step in time of arrival and time difference of arrival process?

a.

Analysis of signal propagation

b.

Track error bound

c.

Conversion to equation

d.

Analysis of channel path

Discuss
Answer: (d).Analysis of channel path Explanation:The signal propagation is analyzed by multiple receivers or by multiple antennas. This results in the conversion of the time delay to the phase difference, time difference, or frequency shift which is then converted to equations of range, or other parameters.
Q223.
Which among the following is an essential for the time of arrival approach?

a.

Time tag and phase tag the transmitted signal

b.

Phase tag the transmitted signal

c.

Time tag and frequency tag the transmitted signal

d.

Time tag the transmitted signal

Discuss
Answer: (d).Time tag the transmitted signal Explanation:The time of arrival approach relies on time tagging the transmitted signal and computing the time of arrival of the signal at the receiver. When many receivers with known locations obtain the same signal, the multiple iso-range spheres intersect providing the location of the transmitter. Likewise, when transmitters provide knowledge of their location in the time-tagged transmitted signal, a receiver can compute its location.
Q224.
What curve is obtained by plotting the time difference of arrival?

a.

Parabola

b.

Sphere

c.

Hyperbola

d.

Ellipse

Discuss
Answer: (c).Hyperbola Explanation:The time difference of arrival approach involves computing the time difference between the reception of a signal at one location and the reception of the same signal at a different location. The plot of time difference of arrival produces a hyperboloid surface with its foci at the two receivers.
Q225.
How many surfaces are required to geolocate a transmitter on a two-dimensional plane using time difference of arrival approach?

a.

Two

b.

Three

c.

Four

d.

Five

Discuss
Answer: (b).Three Explanation:When a number of receivers at known locations receive the same sign, the obtained hyperboloids intersect at the location of the transmitter. The number of surfaces required to geolocate a transmitter in 2 D plane is three and the number of surfaces required to geolocate a transmitter in 3 D plane is four.
Q226.
What type of signal is employed by LORAN?

a.

Intermittent

b.

Continous

c.

Burst

d.

Buffer

Discuss
Answer: (c).Burst Explanation:LORAN system sends a known burst signal with fixed periodicity from multiple transmitters. The receivers construct time difference of arrival hyperboloid curve to determine the location of the transmitter. LORAN provides published charts corresponding to hyperboloid curves, to find the intersection of two-time difference pairs.
Q227.
Which among the following is the first step in the determination of position using time difference of arrival?

a.

Time tag the transmitted signal

b.

Solving for the position of source transmitter

c.

Determining the time difference of arrival curve

d.

Conversion to a common coordinate system

Discuss
Answer: (a).Time tag the transmitted signal Explanation:The hyperboloid curve of time difference of arrival approach is drawn by considering the speed of propagation and difference between the arrival times of the same signal at two receivers. To expand the curve to include three receivers, the results are converted to a common coordinate system. Finally, the curve equations are solved to identify the position of the source.
Q228.
Which among the following computations might be employed as a technique for determining the time difference of arrival?

a.

Cross-correlation

b.

Probability density function

c.

Cumulative density function

d.

Standard deviation

Discuss
Answer: (a).Cross-correlation Explanation:Time can be estimated using correlation in a wideband transmission environment. In time difference of arrival approach, the received signals are digitized in their corresponding stations and are transferred to a common processing location for calculating cross correlation. The peak of the cross correlation provides the time difference of arrival.
Q229.
The angle of arrival approach requires antenna array at the receivers.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:In the angle of arrival approach, multiple receivers combine to compute the angle of arrival. The technique requires an antenna array at the receivers. The bearing to the signal and the known location of multiple receivers provide the location of the transmitter.
Q230.
Which among the following is an important assumption while operating with the Policy Core Information Model?

a.

No storage is necessary

b.

Cooperative storage

c.

Centralized storage

d.

Distributed storage

Discuss
Answer: (c).Centralized storage Explanation:Policy Core Information Model utilizes a centralized database. The policy enforcement point sends a request for a policy decision to the policy decision point. The policy decision point obtains information from the centralized database to take policy decisions.
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