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 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.
Q312.
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.
Q313.
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.
Q314.
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.
Q315.
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.
Q316.
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.
Q317.
What is the best path from N1 to N3 in dynamic source routing?

a.

N1 – N4 – N2 – N3

b.

N1 – N4 – N5 – N4 – N1 – N2 – N3

c.

N1 – N4 – N5 – N3

d.

N1 – N2 – N3

Discuss
Answer: (d).N1 – N2 – N3 Explanation:Dynamic source routing initiates by broadcasting a packet to nodes N2 and N4. N2 broadcasts request packets to N3 and N5. N3 identifies itself as the target. N5 forwards the packets to N4 and N3. The nodes which received the request packet for a second time discard the request packets. N3 identifies two routes N1-N2-N3 and N1-N4-N5-N3. N3 returns the path N1-N2-N3 in reverse order since it is the shorter route.
Q318.
Which among the following options should replace the labels ‘A’, ‘B’, and ‘C’?

a.

Cross layer controller, Interface to network, Interface to node

b.

Cross layer controller, Interface to node, Interface to network

c.

Interface to node, Cross layer controller, Interface to network

d.

Interface to network, Cross layer controller, Interface to node

Discuss
Answer: (c).Interface to node, Cross layer controller, Interface to network Explanation:Cross layer implementation on node level is desired to alter the threshold on individual wireless connections, to dynamically limit resources available at the MAC layer, and to improve the error performance of encoding schemes. Cross-layer implementation on the network level is desired to improve the quality of service and effective usage of resources.
Q319.
What type of optimisation technique is represented in the following diagram?

a.

Fuzzy Logic

b.

Hidden Markov Model

c.

Case Based Reasoning

d.

Evolutionary Algorithm

Discuss
Answer: (a).Fuzzy Logic Explanation:Fuzzy Logic is a many valued logic in which the value assigned to variable ranges between completely true to completely false. It is applied for frequently changing parameters or inaccurate parameters. It utilizes concepts such as enrolment capacities, semantic factors, and a central base.
Q320.
Which among the following statements holds true about the give graph?

a.

The energy required per bit increases exponentially with exponential increase in bits per Hertz

b.

The energy required per bit increases linearly with exponential increase in bits per Hertz

c.

The energy required per bit increases linearly with linear increase in bits per Hertz

d.

The energy required per bit increases exponentially with linear increase in bits per Hertz

Discuss
Answer: (d).The energy required per bit increases exponentially with linear increase in bits per Hertz Explanation:The graph shows that the energy required per bit increases linearly with exponential increase in bits per Hertz. The cost of energy varying from one to two bits per Hertz is equal to the variation from six to sever bits per Hertz. Bits per Hertz can be a valid measure for spectrum efficiency provided perfectly stable channel and power are available.
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