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 29 of 33

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Q281.
Which among the following is an advantage of spectrum sensing with radio environment map?

a.

High sensitivity

b.

Low transmission power

c.

Reduction in observation time

d.

High dynamic range

Discuss
Answer: (c).Reduction in observation time Explanation:The radio environment map holds both present and past radio environment information. Spectrum sensing with prior knowledge is more effective than continuous scanning of the entire radio spectrum. Consequently, the observation time, cost, and energy consumption of radio can be reduced.
Q282.
Which among the following is achieved by combing learning with data mining in the radio environment map?

a.

Observation intelligence

b.

Learning

c.

Network intelligence

d.

Resource intelligence

Discuss
Answer: (c).Network intelligence Explanation:The incorporation of information obtained from reasoning, learning, and data mining in the radio environment map provides network intelligence. Network nodes obtain cognitive capabilities through network intelligence irrespective of the cognition capability of subscriber radios. Cognition capability can be provided to the legacy networks by combining them with the radio environment map.
Q283.
Which among the following units communicates with radio environment map in legacy radios?

a.

Local control and access manager

b.

Local bus manager

c.

Specialized processor

d.

Network radio resource manager

Discuss
Answer: (d).Network radio resource manager Explanation:The radio environment map aids legacy radios or hardware reconfigurable radios by providing smart network operation by introducing cognitive strategies to the network radio resource manager. While in cognitive radios, it aids in situational awareness and adaptations.
Q284.
Which among the following statements is false about a radio operating with the radio environment map?

a.

Aware of application layer operations

b.

Aware of physical layer operations

c.

Awareness of performance metrics

d.

Incompatibility with underlying radio access technology

Discuss
Answer: (d).Incompatibility with underlying radio access technology Explanation:Radio environment map enables a radio to be aware of performance metrics such as data rate, spectral efficiency, etc. A radio with a radio environment map is comprehensive of each layer of protocol stack under different and varying radio environments. Radio environment map is compatible with underlying radio access technology regardless of the cognition capability of user radio.
Q285.
Which among the following statements is false about the incorporation radio environment map in communication systems?

a.

Radio environment map supports adaption regardless of available resources

b.

Radio environment map allows network access on the basis of performance metrics

c.

Radio environment map supports collaborative information processing

d.

Radio environment map supports various network architectures

Discuss
Answer: (a).Radio environment map supports adaption regardless of available resources Explanation:Effective adaption of radio environment map is limited by radio scenarios such as available services, user policy, radio equipment capability, and available spectrum. Radio environment map supports various network architectures, collaborative information processing, and network access on the basis of performance metrics.
Q286.
Which among the following technologies is employed to predict performance metrics?

a.

Network based ontology

b.

Very large scale integrated circuits

c.

Radio propagation simulation tools

d.

Geographical information system

Discuss
Answer: (c).Radio propagation simulation tools Explanation:Radio propagation simulation tools are used to predict important parameters such as path loss, signal to noise ratio, and geographical environment information. Location specific radio propagation techniques with 3 D terrain maps offer accurate predictions that can provide better system planning and management.
Q287.
Which among the following is a function of policy service?

a.

Policy decision

b.

Policy life cycle management

c.

New policy request

d.

Policy enforcement

Discuss
Answer: (b).Policy life cycle management Explanation:Police service is involved in the maintenance of policies that were downloaded and included in the radio frame by a policy authority. It performs policy life cycle management operations such as parsing the policy language, monitoring operation status, and eliminating outdated policies.
Q288.
The cyclic coordinate method of optimization depends on the properties of objective functions.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:Cognitive radios apply optimization techniques to handle complex parameters. Classical optimization techniques depend on the properties of the objective function. They are analytically more traceable when compared to heuristic optimization techniques. The cyclic coordinate method and the steepest descent method are examples of optimization algorithms.
Q289.
Which among the following phenomenon require site specific propagation prediction?

a.

Location awareness

b.

Geographical awareness

c.

RF environment

d.

Position awareness

Discuss
Answer: (b).Geographical awareness Explanation:Geographical awareness provides information on terrain and geographical information pertaining to radio propagation and channel properties. Terrain recognition, site specific propagation prediction, and exploitation of geographical information database are the techniques applied to gain geographical awareness.
Q290.
Which among the following is a common problem incorporated by a channel on cognitive radios?

a.

Switching delay

b.

Transmitter uncertainty

c.

Doppler shift

d.

Receiver uncertainty

Discuss
Answer: (c).Doppler shift Explanation:The major degradation introduced by channels on cognitive radio is shadowing, fading, and Doppler shift. Predictive models constructed using short term and long term observations with radio environment map increase awareness of channels. This helps in developing better plans to tackle the effect of channel degradation.
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