Location and Environment Awareness MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Location and Environment Awareness, 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 Location and Environment Awareness 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 Location and Environment Awareness mcq questions that explore various aspects of Location and Environment Awareness problems. Each MCQ is crafted to challenge your understanding of Location and Environment Awareness 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 Location and Environment Awareness 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 Location and Environment Awareness. 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 Location and Environment Awareness knowledge to the test? Let's get started with our carefully curated MCQs!

Location and Environment Awareness MCQs | Page 4 of 7

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Q31.
________ provides information on path loss behaviour.

a.

Very large scale statistics

b.

Large scale statistics

c.

Small scale statistics

d.

Very small scale statistics

Discuss
Answer: (b).Large scale statistics Explanation:Large scale statistics provides information on path loss behaviour of channel environment. Small scale statistics provides information on variations caused in the received signal in time and frequency due to short displacements.
Q32.
Which among the following is a step in defining propagation characteristics in environment awareness engine using cognitive radio?

a.

Terrain mapping

b.

Temperature monitory

c.

Object tracking

d.

Channel environment adaption

Discuss
Answer: (d).Channel environment adaption Explanation:The first step in defining propagation characteristics using cognitive radio is environment recognition and classification. It is followed by obtaining the parameters necessary for statistical propagation model. The final step is channel environment adaption.
Q33.
The traditional means for obtaining propagation channel characteristics is called ____

a.

statistical signal modeling

b.

statistical channel modeling

c.

propagation channel modeling

d.

statistical modeling

Discuss
Answer: (c).propagation channel modeling Explanation:Propagation channel modeling involves performing extensive measurements and data processing to define propagation channel characteristics. Delay spread, Doppler spread, and angular speed are few channel characteristics.
Q34.
Objects are ____ in the context of environment awareness.

a.

land forms

b.

landmarks

c.

human made entities

d.

natural entities

Discuss
Answer: (c).human made entities Explanation:Objects are human made entities present in the target environment permanently or temporarily in the context of environment awareness. Vehicles, appliances, packages are few examples of objects. However structures such as buildings are not considered as objects.
Q35.
Bat echolocation is employed in ____

a.

cognitive radar

b.

cognitive triangulation

c.

cognitive phase shift method

d.

cognitive taping

Discuss
Answer: (a).cognitive radar Explanation:Bat echolocation is employed in cognitive radar and cognitive sonar. An important feature of environment awareness is object detection, identification, and tracking. These features have direct effect on the environment. Cognitive radar and cognitive sonar may accomplish these specified requirements.
Q36.
Meteorological information focuses on ____ of the target region.

a.

channel

b.

structure

c.

weather

d.

relief

Discuss
Answer: (c).weather Explanation:Meteorological information focuses on weather of the target region and its effect on signal propagation. Weather conditions such as snow, rain, temperature, humidity, and pressure have an effect on signal propagation and are measured using sensors.
Q37.
Which among the following can be used as a metric for studying the effect of rain on signal propagation?

a.

Symbol rate

b.

Bit rate

c.

Carrier to interference ratio

d.

Delay spread

Discuss
Answer: (c).Carrier to interference ratio Explanation:Meteorological information is studied to adapt the radio in accordance to the weather condition. Rain might induce carrier to interference ratio degradation, carrier to interference ratio improvement, or it might result in any change.
Q38.
LOS – NLOS identification is a ____ application.

a.

location based service

b.

location assisted network optimisation

c.

location assisted transceiver optimization

d.

location assisted environment identification

Discuss
Answer: (d).location assisted environment identification Explanation:The ability to distinguish among different propagation environment as a function of line-of-sight is desirable at user terminal. LOS transmission characteristics differ from that of NLOS. LOS – NLOS identification is a location assisted environment identification application.
Q39.
Indoor positioning systems require higher accuracy than outdoor positioning systems.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True Explanation:Indoor positioning systems require higher accuracy than outdoor positioning systems. For example, asset management in industrial areas requires an accuracy of 0.05 – 30 m. Most autonomous location aware applications require high accuracy.
Q40.
Adaptive beam forming is a location based service.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False Explanation:Adaptive beam forming, interference avoidance, and link adaption are location based transceiver optimization applications. Package tracking and child finder are examples of location based service.
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