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 8 of 33

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Q71.
Which among the following is a concern of a primary user?

a.

Link maintenance probability

b.

Number of handoff

c.

Handoff latency

d.

Effective data rate

Discuss
Answer: (c).Handoff latency Explanation:Spectrum handoff is the process of transferring current data communication from one channel to another channel. The delay caused by spectrum handoff is termed as handoff latency. High handoff latency at the secondary user increases the amount of interference at the primary user.
Q72.
Which among the following is an essential feature of spectrum mobility in FTP communication?

a.

Storage of packets

b.

Authentication

c.

Encryption

d.

Data recovery

Discuss
Answer: (a).Storage of packets Explanation:Connection management in spectrum mobility enforces protocols with respect to the application for maintaining communication. FTP requires protocols to store packets that are transmitted during handoff. But real-time applications do not require storage of packets as the information is obsolete for the corresponding application.
Q73.
Which among the following is the basic unit of spectrum pool?

a.

Contiguous licensed spectrum band

b.

Non-contiguous licensed spectrum band

c.

Contiguous unlicensed spectrum band

d.

Contiguous licensed spectrum band

Discuss
Answer: (d).Contiguous licensed spectrum band Explanation:The spectrum pool comprises of a collection of contiguous licensed spectrum bands. Each spectrum band contains several channels. A spectrum band is considered as a preliminary bandwidth unit for operating any wireless access technology.
Q74.
What is link maintenance probability?

a.

Link maintenance probability is the measure of duration of transmission before handoff

b.

Link maintenance probability is the measure of sustenance of transmission during handoff

c.

Link maintenance probability is the measure of duration to find back-up channels

d.

Link maintenance probability is the measure of the strength of link during transmission

Discuss
Answer: (b).Link maintenance probability is the measure of sustenance of transmission during handoff Explanation:Link maintenance probability is the measure of sustenance of the communication of secondary user, when the secondary user vacates a channel. Link maintenance probability increases with the number of handoffs. Link maintenance probability is one of the performance measuring parameters of spectrum mobility.
Q75.
Which among the following is integrated in IEEE 802.22 Wireless Regional Area Network?

a.

Route decision model

b.

Back up channel list

c.

Interference floor

d.

Spectrum decision model

Discuss
Answer: (b).Back up channel list Explanation:The most preferred approach for mitigating performance degradation, due to poor channel characteristics, is building a backup channel list. The potential target channels are added to a list. The list is maintained by sharing information between users in the area. It is integrated in the IEEE 802.22 Wireless Regional Area Network.
Q76.
What is the terminology used for a handoff between spectrum bands without changing the current base station?

a.

Intra-cell/Intra-pool handoff

b.

Inter-cell/Intra-pool handoff

c.

Inter-cell/inter-pool handoff

d.

Intra-cell/inter-pool handoff

Discuss
Answer: (a).Intra-cell/Intra-pool handoff Explanation:When an xG user switches from one spectrum band to another in the same spectrum pool without selecting an alternate base station, it is termed as intra-cell/intra-pool handoff. A cell is a unit of coverage area. Spectrum pool is a set of contiguous licensed spectrum bands.
Q77.
What is intra-cell/inter-pool handoff?

a.

Same spectrum pool and same base-station

b.

Same spectrum pool and different base-station

c.

Different spectrum pool and different base-station

d.

Different spectrum pool and same base-station

Discuss
Answer: (d).Different spectrum pool and same base-station Explanation:When an xG user switches from one spectrum pool to another spectrum pool within a single cell coverage area, it is termed as intra-cell/inter-pool handoff. The is no transfer from serving base-station to the neighbour base-station. A Cell is a unit of coverage area. Spectrum pool is a set of contiguous licensed spectrum bands.
Q78.
Prediction of availability of channels can mitigate sensing delay.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:Target channel selection relies on channel capacity, availability of channel during handoff, and availability of channel in the future. Prediction of channel availability reduces sensing delay since partial sensing is performed instead of conventional sensing. Accuracy is improved due to the integration of historical spectrum statistics.
Q79.
What is a non-handoff?

a.

xG user selects a channel from the unlicensed band

b.

xG user selects a channel in the licensed spectrum band

c.

xG user removes another user in the unlicensed band

d.

xG user eliminates a primary user in the unlicensed band

Discuss
Answer: (b).xG user selects a channel in the licensed spectrum band Explanation:Spectrum handoff is the process of changing the spectrum band and modifying the communication parameters to suit the selected spectrum band. In the non-handoff method, the xG users select an unused spectrum in the licensed band which is temporarily unoccupied by the primary user. The disadvantage of this method is the high waiting latency.
Q80.
What is reactive handoff?

a.

xG user performs sensing and sensing is performed before the triggering event

b.

xG user performs sensing and sensing is performed after triggering event

c.

Primary user performs sensing and sensing is performed before the triggering event

d.

Primary user performs sensing and sensing is performed after triggering event

Discuss
Answer: (b).xG user performs sensing and sensing is performed after triggering event Explanation:In the reactive handoff, the xG user begins to sense for available spectrum bands for handoff only after the triggering event. The advantage of this method is that the best available spectrum band is selected. However this method exhibits longer handoff latency.
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