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Wireless and Mobile Communication WMC 6th Sem/ECE/0761/Feb 2021 Diploma Paper

Download Previous Year Diploma Paper of Wireless and Mobile Communication WMC 6th Sem/ECE/0761/Feb 2021 Diploma Paper

WIRELESS AND MOBLE COMMUNICATION WMC 6th Sem/ECE/0761/Feb 2021 Diploma Paper

                                SECTION-A

Q1. Attempt any Three questions.                                                                    3×5=15

i. What are the advantages of wireless communication?
ii. Draw and explain the frequency spectrum.
iii. What is DTH service? Explain.
iv. Explain the cellular concept.
v. Why hexagonal shape of cells is preferred in cellular networks.
vi. Explain the features of FDMA.
vii. Discuss how Wi-Fi works.

                                     SECTION-C

Q3. Attempt any one question.                                                       1×10=10

a. Explain construction and working of Avalanche photodiode (APD) with diagram.
b. What is optical power budgeting. How it is helpful in designing fiber optical system. Explain in detail.
c. Explain the construction and working principle of laser diode with neat diagram.
d. Write a short note on i) Dispersion in fiber optics ii) Wavelength division multiplexing

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

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Section a FILL IN THE BLANKS Optical Fiber Communication OFC 6th Sem Diploma May 2015 Paper

The number of bits transmitted per second over a channel is called _______.

The number of bits transmitted per second over a channel is called          .

 

The optical communication frequency is ________

The optical communication frequency is ______ 

 

The principle of light propagation in optical fibre is based on _______

The principle of light propagation in optical fibre is based on _____

 

LASER stands for  ___________.

LASER stands for 

Dark current is defined as ___________

Dark current is defined as

 

LASER exhibits ___________

LASER exhibits

 

In a graded index fiber the refractive index _____ 

In a graded index fiber the refractive index _____ 

 

The optical fiber structure consists of basically three parts __________

The optical fiber structure consists of basically three parts

 

The process of extracting mineral from the earth is known as ______.

Single mode fibers support only _____ mode of

 

The unit of Dispersion is _________

The unit of Dispersion is_______ 

 

VCSEL stands for _________.

VCSEL stands for

 

Johnson noise is due to _________.

Johnson noise is due to _______

 

A photodiode is used in _________

A photodiode is used in _ ___

DWDM stands for_____ 

DWDM stands for_____ 

 

The heart of an optical receiver is the _________

The heart of an optical receiver is the _________

Optical Fiber Communication OFC 6th Sem Diploma May 2015 Solved Paper Click Here

Section B :Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

What are the advantages of wireless communication?

Advantages of wireless communication.

Draw and explain the frequency spectrum.

Explain the frequency spectrum.

What is DTH service? Explain.

DTH service

Explain the cellular concept.

Explain the cellular concept.
v. Why hexagonal shape of cells is preferred in cellular networks.
vi. Explain the features of FDMA.
vii. Discuss how Wi-Fi works.

Describe the different types of functional Amplifiers.

Different types of functional Amplifiers.

 

What is Splicing? Explain any two techniques of Splicing ?

What is Splicing

Two Techniques of Splicing 

 

List a few applications of Optical Communication ?

Applications of Optical Communication 

List a few applications of Optical Communication ?

Few applications of Optical Communication 

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper Click Here

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

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Section c :-Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

Explain construction and working of Avalanche photodiode (APD) with diagram.

Construction and working of Avalanche photodiode (APD) with diagram.

What is optical power budgeting. How it is helpful in designing fiber optical system.

Optical power budgeting. How it is helpful in designing fiber optical system. 

Explain the construction and working principle of laser diode with neat diagram.

working principle of laser diode with neat diagram.

Write a short note on i) Dispersion in fiber optics ii) Wavelength division multiplexing

 i) Dispersion in fiber optics ii) Wavelength division multiplexing

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Section B :gsed may 2017 diploma psbte paper solution

What is the importance of generic skill development?

Importance of generic skill development.

 

Define personality and important determinants of personality.

Personality and important determinants of personality.

 

How stress can be managed ?

How stress can be managed 

 

What is conversation and how to improve conversation skills ?

Conversation and how to improve conversation skills.

 

Explain LLL and its importance ?

LLL and its importance.

 

Explain Delphi method and Brainstorming ?

 

Delphi method and Brainstorming.

 

What are the main qualities of a successful entrepreneur?

Main qualities of a successful entrepreneur.

 

Explain the general steps followed in problem solving.

General steps followed in problem solving.

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