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 32 of 33

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Q311.
Which type of connection is depicted in the following diagram?

a.

Centralised connection

b.

Ad hoc connection

c.

Fixed infrastructure connection

d.

Single hop connection

Discuss
Answer: (b).Ad hoc connection Explanation:The connection depicted in the diagram is an xG ad hoc access connection. xG users may communicate among themselves using an ad hoc connection on licensed and unlicensed spectrum band. Ad hoc connection is typically a multihop connection. This type of connection is also known as xG connection without infrastructure.
Q312.
What type of network is depicted in the following diagram?

a.

xG ad hoc access

b.

xG network access

c.

Primary network access

d.

Secondary network access

Discuss
Answer: (b).xG network access Explanation:The diagram depicts xG network access connection. xG network access refers to the communication established via xG base-station on the licensed and unlicensed spectrum band. xG base station is a fixed infrastructure network component that provides single hop connection to xG users.
Q313.
What is the detection technique employed in the following diagram?

a.

Matching filter detection

b.

Cooperation detection

c.

Energy detection

d.

Cyclostationary detection

Discuss
Answer: (d).Cyclostationary detection Explanation:In cyclostationary detection, modulated signals are coupled with sine wave carriers or pulse trains to incorporate periodicity. By exploiting the periodicity, noise energy is differentiated from modulated signal energy. Hence it yields better noise performance than other transmitter detection techniques.
Q314.
Which among the following condition is represented in the following diagram?

a.

Transmitter uncertainty

b.

Shadowing uncertainty

c.

Receiver uncertainty

d.

Access point uncertainty

Discuss
Answer: (b).Shadowing uncertainty Explanation:Shadowing uncertainty is the situation when the xG user cannot sense the receiver when there is a clear line of sight between the receiver and xG user. It also cannot sense the transmitter since the line of sight between the transmitter and the xG user is hindered by the receiver.
Q315.
Which among the following terms should replace the labels ‘A’ and ‘B’ in the diagram?

a.

A – Link layer delay, B – Scheduling Information

b.

A – Link layer establishment, B – Spectrum broker

c.

A – Scheduling information, B – Link layer delay

d.

A – Spectrum broker, B – Link layer establishment

Discuss
Answer: (a).A – Link layer delay, B – Scheduling Information Explanation:Link-layer delay is one of the defining parameters of quality of service. Various link layer protocols suitable for different path loss, wireless link error, and interference are available. Link layer packet transmission delay changes with respect to the selected protocol. Scheduling information ensure fair sharing of spectrum resources in the unlicensed spectrum band.
Q316.
Which among the following terms should replace the labels ‘A’, ‘B’, and ‘C’ in the diagram?

a.

A – Sensing information, B – Spectrum sensing, C – Reconfiguration

b.

A – Sensing information, B – Reconfiguration, C – Spectrum sensing

c.

A – Spectrum sensing, B – Reconfiguration, C – Sensing information

d.

A – Reconfiguration, B – Spectrum sensing, C – Sensing information

Discuss
Answer: (a).A – Sensing information, B – Spectrum sensing, C – Reconfiguration Explanation:Spectrum sensing examines the available spectrum bands, gathers information about the spectrum band, and detects spectrum holes. It is implemented in the physical layer. In-band sensing is carried out to sense the arrival of primary users and transfer the information to the spectrum mobility function unit. Reconfiguration is necessary to alter the transmission parameters in accordance with the dynamic radio environment.
Q317.
Which among the following method is represented in the following diagram?

a.

Non-handoff

b.

Proactive handoff

c.

Reactive handoff

d.

Hybrid handoff

Discuss
Answer: (d).Hybrid handoff Explanation:Hybrid handoff is a combination of proactive handoff and reactive handoff. As shown in the diagram, the backup channel list is created in advance of handoff. In proactive handoff, handoff is performed before the triggering event. But hybrid handoff follows reactive handoff meaning that handoff is performed only after the triggering event.
Q318.
Which among the following should replace the labels ‘A’ and ‘B’?

a.

Spectrum management and connection management

b.

Spectrum mobility and connection management

c.

Connection management and spectrum handoff

d.

Spectrum mobility and spectrum handoff

Discuss
Answer: (c).Connection management and spectrum handoff Explanation:Spectrum handoff is the process of transferring current data communication from one channel to another channel. Spectrum handoff is implemented in the physical layer. Connection management ensures that the xG user maintains the quality of service and prevents quality degradation at the time of spectrum switching by modifying the protocols associated with each layer in the OSI model.
Q319.
Which among the following terms should replace the label ‘A’?

a.

Centralised intra-network spectrum sharing

b.

Centralised inter-network spectrum sharing

c.

Distributed inter-network spectrum sharing

d.

Distributed intra-network spectrum sharing

Discuss
Answer: (b).Centralised inter-network spectrum sharing Explanation:xG networks are generally overlapped to maximize the opportunistic usage of a licensed spectrum band. An example of a centralized inter-network approach is the common spectrum coordination channel protocol designed to support the combined existence of IEEE 802.11b and IEEE 802.16a.
Q320.
What term should replace the labels ‘A’ and ‘B’?

a.

Spectrum management, Spectrum sensing

b.

Spectrum access, Spectrum allocation

c.

Spectrum management, Spectrum access

d.

Spectrum access, Spectrum sensing

Discuss
Answer: (d).Spectrum access, Spectrum sensing Explanation:Spectrum sensing and spectrum access are the two major functions of the spectrum sharing process. Spectrum sensing is responsible for locating unused spectrum bands. Spectrum access is responsible for choosing the best available spectrum that meets the quality of service requirements and policies from all available spectrum.
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