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.
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.
Q222.
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.
Q223.
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.
Q224.
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.
Q225.
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.
Q226.
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.
Q227.
Which among the following is the first step in the operation of a cognition policy engine?

a.

The cognitive engine transfers data to the policy engine

b.

The policy engine requests data from cognitive radio

c.

The policy engine obtains the set of policies to be downloaded

d.

The policy engine determines the information of interest

Discuss
Answer: (c).The policy engine obtains the set of policies to be downloaded Explanation:The first step in the operation of the cognition engine is to collect the set of policies to be downloaded for the operation of the radio. The policy next determines the information to be monitored on the radio platform. Then the cognitive radio grants the policy engine with the requested situational data. This results in the processing of appropriate policy rules.
Q228.
The policy requests and decisions exchange between the policy decision point and policy enforcement point may be over common open policy service.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:The common open policy service belongs to the internet protocol suite. It offers a client/server model for providing policy control over the quality of service signaling protocols. The policy requests and decisions exchange between the policy decision point and policy enforcement point may be over common open policy service.
Q229.
Which among the following statements is true about the spectrum policy management?

a.

Eliminate cooperative sensing

b.

Eliminates network administrators

c.

Resolve conflicts in policy rules

d.

Maintain homogeneity with legacy radios

Discuss
Answer: (c).Resolve conflicts in policy rules Explanation:The spectrum policy management solves the conflicts in policy rule by identifying inconsistencies. It depends on the network administrators to determine the applicable spectrum policy for the spectrum environment, spectrum sharing mechanism, and other issues that arise due to cross layer design.
Q230.
Which among the following is not a function of spectrum policy management?

a.

Monitor spectrum utilization

b.

Detect RF interference

c.

Control run-time configuration of cognitive radio

d.

Authorization of updates in cognitive radio

Discuss
Answer: (d).Authorization of updates in cognitive radio Explanation:Spectrum policy management analyses spectrum utilization and detects RF interference. The configuration of the cognitive radio during run time is controlled by spectrum policy management to meet the selected spectrum policies. However, it requires authorization to perform changes to the radio.
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