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 30 of 33

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Q291.
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.
Q292.
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.
Q293.
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.
Q294.
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.
Q295.
Which among the following statements is false about the introduction of a cognitive radio in a wireless regional area network?

a.

Availability of spectrum access information to the secondary user

b.

Availability of spectrum access information to the primary user

c.

Knowledge of antenna height

d.

Usage pattern of wireless regional area network

Discuss
Answer: (b).Availability of spectrum access information to the primary user Explanation:The wireless regional area network comprises base stations, repeaters, and consumer premise equipment. It provides fixed wireless access services in rural areas. The inclusion of a radio environment map provides knowledge of location, antenna height, transmission power, and opportunistic spectrum access. It provides knowledge distribution and usage patterns of secondary users.
Q296.
Which among the following require radio transceiver database?

a.

RF environment awareness

b.

Location awareness

c.

Power consumption awareness

d.

Energy consumption awareness

Discuss
Answer: (a).RF environment awareness Explanation:RF awareness means to be aware of spectrum utilization, spectrum users, topology, interference, and other RF characteristics. Radio transceiver database, cooperative sharing, sensor networks, and field measurement are the methods applied to gain RF environment awareness.
Q297.
Which among the following techniques require geographic information database?

a.

Policy awareness

b.

Regulation awareness

c.

Mobility and trajectory awareness

d.

Background environment awareness

Discuss
Answer: (c).Mobility and trajectory awareness Explanation:Mobility and trajectory awareness computes the speed and direction of a cognitive radio. Speed and trajectory is estimated by analyzing the change of location of the radio over a period of time and by utilizing the resources of a geographic information database.
Q298.
Which among the following processes is required to extend radio adaption beyond predefined knowledge?

a.

Sorting

b.

Knowledge acquisition

c.

Reasoning

d.

Learning

Discuss
Answer: (d).Learning Explanation:The reasoning engine is responsible for applying the gathered knowledge in accordance with the current state of the system. However, the reactions will be limited to previously defined knowledge even under new situations. Learning provides the ability to study input, identify patterns, and modify the operation of the radio system as per the demands of the situations.
Q299.
Which among the following processes under learning action initiates a change in the action selection policy?

a.

Observation of state of the radio system

b.

Decision making in reasoning engine

c.

Analyses of the outcome of the decision selected by the reasoning engine

d.

Modification of knowledge base

Discuss
Answer: (d).Modification of knowledge base Explanation:The modification of the knowledge base step is generally the final step in a single learning cycle. The knowledge base is modified in accordance with the outcome of the actions implemented by the reasoning engine. The existing information in the knowledge base is altered, or the action selection policy is changed. Otherwise, new knowledge entries are included in the database.
Q300.
What is called declarative knowledge?

a.

Declarative knowledge represents a range of values applicable for assigning a variable

b.

Declarative knowledge represents assumed statements

c.

Declarative knowledge asserts and reasons over descriptive factual knowledge

d.

Declarative knowledge represents predicted knowledge

Discuss
Answer: (c).Declarative knowledge asserts and reasons over descriptive factual knowledge Explanation:Declarative knowledge involves asserting and reasoning over descriptive factual knowledge about an object. Declarative knowledge describes the semantic relationships between objects.
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