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 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.
Q282.
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.
Q283.
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.
Q284.
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.
Q285.
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.
Q286.
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.
Q287.
Which among the following is an approach that can be applied to overcome the effect of channel fading?

a.

Discarding particular channel from use

b.

Transmission and reception during fixed time slots

c.

Selection of appropriate waveform

d.

Compromising quality of service

Discuss
Answer: (c).Selection of appropriate waveform Explanation:Radio environment map provides the cognitive radio with channel characteristics with respect to the location and the direction of a mobile user. The characteristics of the channel help construct channel links and develop predictive models. With the help of predictive models, a waveform suitable to the channel characteristics can be constructed to adapt to the channel.
Q288.
Which among the following problems could be overcome by spreading gain?

a.

Delay due to fading

b.

Delay due to multipath

c.

Call drop due to multipath

d.

Call drop due to fading

Discuss
Answer: (c).Call drop due to multipath Explanation:Cognitive radio with radio environment map can predict call drop resulting due to multipath or shadowing. It can be prevented by switching on the backup power amplifier, increasing the number of RAKE fingers, spreading gain, changing power control policy, or by opting intersystem handoff.
Q289.
Which among the following is termed as a local radio environment map?

a.

Wide area network level

b.

Hop to hop level

c.

User equipment terminal

d.

Local area network level

Discuss
Answer: (c).User equipment terminal Explanation:The radio environment map installed on a user’s terminal equipment is called a local radio environment map. Each map is unique to its user device. The local radio environment map enables the cognitive radio to store current status and past experiences.
Q290.
Which among the following statements is false about the radio environment map on a network level?

a.

Radio environment map is compatible with hybrid node technology

b.

Radio environment map introduces network intelligence

c.

Radio environment map merges into the core of cognitive radio architecture

d.

Radio environment map is dependent on network topology

Discuss
Answer: (d).Radio environment map is dependent on network topology Explanation:Radio environment map installation on a network level requires analyses of different structures and services in accordance with the requirements of various applications. Radio environment map introduces network intelligence and merges into the core of cognitive radio architecture. It is independent of network topology and can operate in hybrid node technology.
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