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 5 of 33

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Q41.
Which among the following is an interference of interest in xG architecture?

a.

Expected interference at primary user

b.

Expected interference at xG user

c.

Expected interference at channel

d.

Expected interference at spectrum broker

Discuss
Answer: (a).Expected interference at primary user Explanation:The expected amount of interference on the primary user due to an xG user is the interference of interest in xG architecture. Interference at the primary transmitter can be controlled through the radiated power, the out-of-band emissions, and the location at the transmitters.
Q42.
Which among the following is not a disadvantage of cooperation detection?

a.

Overhead traffic

b.

Receiver uncertainty

c.

Shadowing uncertainty

d.

Additional storage

Discuss
Answer: (c).Shadowing uncertainty Explanation:The main drawback of cooperation detection is the increased strain on networks with limited resources as the number of operations and overhead traffic is increased. When the xG user communication range does not include the transmitter, interference is unavoidable as receiver information is unavailable. Receiver uncertainty is not solved by cooperation detection.
Q43.
What is an interference temperature model?

a.

Interference temperature model is constructed by using the cumulative RF energy from multiple transmissions

b.

Interference temperature model is constructed by using the RF energy from a single transmission

c.

Interference temperature model is constructed by using the sampling RF energy from periodic transmissions

d.

Interference temperature model is constructed by using the sampling IF energy from periodic transmissions

Discuss
Answer: (a).Interference temperature model is constructed by using the cumulative RF energy from multiple transmissions Explanation:An interference temperature model is constructed by using the cumulative RF energy from multiple transmissions. A threshold limit is set on the aggregate level. The xG users are permitted to use the spectrum band provided their transmission levels are within the threshold limit.
Q44.
Which among the following is not a disadvantage of the interference detection method?

a.

Requirement of modulation of unlicensed signal

b.

Requirement of the activity level of licensed and unlicensed users

c.

Management of interference at the receiver

d.

Disregard for the effect of multiple xG users

Discuss
Answer: (c).Management of interference at the receiver Explanation:The interference detection method requires information such as type of unlicensed signal modulation, power control, and the activity level of licensed and unlicensed users. It does not consider the effect of multiple xG users. It requires the location of nearby primary users.
Q45.
Spectrum decisions are affected by the co-location of data transmission and sensing function.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:Spectrum decisions are affected by the co-location of data transmission and sensing function. This problem is overcome by developing a separate sensor network for cooperative spectrum sensing while an operational network is constructed for data transmission.
Q46.
Which among the following is not considered for associating a cognitive radio user to an unused spectrum band?

a.

Time-varying radio environment

b.

Bandwidth

c.

QoS requirement

d.

Application policies

Discuss
Answer: (d).Application policies Explanation:The various characteristics of the unused spectrum bands determined during spectrum sensing depend on the time-varying radio environment, operating frequency, bandwidth, and quality of service requirements of the cognitive radio user. Spectrum management is required to correctly associate a user to a compatible spectrum band among all available spectrum bands in xG networks.
Q47.
What among the following is not a function of spectrum management?

a.

Sensing

b.

Decision

c.

Mobility

d.

Repair

Discuss
Answer: (d).Repair Explanation:The major functions of spectrum management are spectrum sensing, spectrum analysis, and spectrum decision-making. Spectrum sharing and spectrum mobility are also included in the management framework. Every function operates over all layers of the OSI model except sensing which is implemented only in the physical layer.
Q48.
Which among the following functions prevent collision?

a.

Spectrum analysis

b.

Spectrum decision

c.

Spectrum mobility

d.

Spectrum sharing

Discuss
Answer: (d).Spectrum sharing Explanation:In the unlicensed portion of the spectrum, cognitive radio users have equal access to the spectrum and attempt to access the spectrum simultaneously. Spectrum sharing coordinates the network access such that collision is avoided in overlapping portions of the spectrum.
Q49.
What is the function of spectrum mobility?

a.

Detect spectrum holes

b.

Gather information about available spectrum bands

c.

Vacate spectrum band

d.

Monitor spectrum band

Discuss
Answer: (c).Vacate spectrum band Explanation:The cognitive radio users only have temporary access to the unused spectrum in the licensed band. If the primary user demands access, the spectrum mobility function of the spectrum management framework intervenes and transfers the cognitive radio user to another vacant position.
Q50.
What is the function of the spectrum analysis unit?

a.

Detect spectrum holes

b.

Prevent collision between multiple users

c.

Match spectrum bands with user requirements

d.

Listen for the arrival of the primary user

Discuss
Answer: (c).Match spectrum bands with user requirements Explanation:Spectrum analysis defines the characteristics of the spectrum bands and verifies whether the characteristics meet the user requirements. Interference level, channel error rate, link-layer delay, holding time, and path loss are few of defining parameters of a spectrum band.
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