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RAJALAKSHMI ENGINEERING COLLEGE THANDALAM, CHENNAI-602105

LESSON PLAN

FACULTY NAME: Mrs.B.Devi SUBJECT CODE: 141304

SUBJECT NAME: ANALOG &DIGITAL CLASS: II year CSE A

COMMUNICATIONAIMTo study about the various modulation techniques like amplitude and angle modulation, that is used for datatransmission and reception of analog signals and also to understand about the modulation techniques used for digitaltransmission along with spread spectrum and multiple access techniques.

OBJECTIVES

To study about the amplitude modulation techniques.

To study bout the angle modulation techniques.

To understand about the modulation techniques used for digital data transmission.

To have the knowledge about the digital communication.

To study about the spread spectrum and multiple access techniques.

UNIT I FUNDAMENTALS OF ANALOG COMMUNICATION

Principles of amplitude modulation, AM envelope, frequency spectrum and bandwidth, modulation index and percent

modulation, AM Voltage distribution, AM power distribution, Angle modulation - FM and PM waveforms, phasedeviation and modulation index, frequency deviation and percent modulation, Frequency analysis of angle modulated

waves. Bandwidth requirements for Angle modulated waves.

UNIT II DIGITAL COMMUNICATION

Introduction, Shannon limit for information capacity, digital amplitude modulation, frequency shift keying, FSK bit rate

and baud, FSK transmitter, BW consideration of FSK, FSK receiver, phase shift keying binary phase shift keying QPSK, Quadrature Amplitude modulation, bandwidth efficiency, carrier recovery squaring loop, Costas loop, DPSK.

UNIT III DIGITAL TRANSMISSION

Introduction, Pulse modulation, PCM PCM sampling, sampling rate, signal to quantization noise rate, companding analog and digital percentage error, delta modulation, adaptive delta modulation, differential pulse code modulation,

pulse transmission Intersymbol interference, eye patterns.

UNIT IV DATA COMMUNICATIONSIntroduction, History of Data communications, Standards Organizations for data communication, data communicationcircuits, data communication codes, Error control, Error Detection, Error correction, Data communication Hardware,serial and parallel interfaces, data modems, Asynchronous modem, Synchronous modem, low-speed modem, medium

and high speed modem, modem control.

UNIT V SPREAD SPECTRUM AND MULTIPLE ACCESS TECHNIQUES

Introduction, Pseudo-noise sequence, DS spread spectrum with coherent binary PSK, processing gain, FH spread

spectrum, multiple access techniques wireless communication, TDMA and CDMA in wireless communicationsystems, source coding of speech for wireless communications.

TEXT BOOKS

1. Wayne Tomasi, Electronic Communication Systems: Fundamentals Through Advanced, Pearson Education,2001. (UNIT I-IV Chapters- 3,4,6,7,12,13,15). T1

2. Simon Haykin, Communication Systems, 4th Edition, John Wiley & Sons., 2001. (Unit V Chapters- 7,8).T2

REFERENCES

1. H.Taub,D L Schilling ,G Saha ,Principles of Communication3/e,2007.

2. B.P.Lathi,Modern Analog And Digital Communication systems, 3/e, Oxford UniversityPress, 2007

3. Blake, Electronic Communication Systems, Thomson Delmar Publications, 2002.4. Martin S.Roden, Analog and Digital Communication System, 3rd Edition, PHI, 2002.

5. B.Sklar,Digital Communication Fundamentals and Applications2/e Pearson Education2007.

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SI.TOPIC

No of

Periods

Require

d

UNIT

Reference

Book

& Page No

1.Principles of amplitude modulation 1 I

T1: 100-114T1: 228-241

2.AM envelope, frequency spectrum and bandwidth 2 I

3.Modulation index and percent modulation 1 I

4.AM Voltage distribution, AM power distribution 1 I

5.Angle modulation - FM and PM waveforms 1 I

6.Phase deviation and modulation index, frequency

deviation and percent modulation1 I

7.Frequency analysis of angle modulated waves 1 I

8.Bandwidth requirements for Angle modulated

waves

1 I

9.Tutorial 3 I

10.Introduction, Shannon limit for information

capacity1 II

T1: 467-476

T1: 478-489

T1: 496T1: 504-507

11.Digital amplitude modulation 1 II

12. Frequency shift keying, FSK bit rate and baud 2 II

13.FSK transmitter, BW consideration of FSK, FSK

receiver

1 II

14.Phase shift keying binary phase shift keying 1 II

15.QPSK, Quadrature Amplitude modulation 1 II

16.Bandwidth efficiency, carrier recovery squaring

loop, Costas loop

1 II

17.DPSK. 1 II

18.Tutorial 2 II

19.Introduction, Pulse modulation, 1 III

20.PCM PCM sampling, sampling rate 2 III

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T1: 667-674T1: 680

T1: 683-693

T1: 695-702

21.Signal to quantization noise rate, companding

analog and digital, percentage error

2 III

22.Delta modulation, adaptive delta modulation 1 III

23.

Differential pulse code modulation 1 III

24.Pulse transmission Intersymbol interference, eye

patterns

2 III

25.Tutorial 2 III

26.Introduction, History of Data communications,

Standards Organizations for data communication

2 IV

T1: 524-535

552,559

588-595

27.Data communication circuits, data communication

codes1 IV

28. Error control, Error Detection, Error correccin 2 IV

29.Data communication Hardware, serial and parallel

interfaces

2 IV

30.Data modems, Asynchronous modem,

Synchronous modem, low-speed modem,

medium and high speed modem

2 IV

31.Modem control. 2 IV

32.Introduction, Pseudo-noise sequence 2 V

T2: 479-499T2: 512-514

T2: 529-555

33.DS spread spectrum with coherent binary PSK,

processing gain1 V

34.FH spread spectrum 1 V

35.Multiple access techniques wireless

communication

1 V

36.TDMA and CDMA in wireless communication

systems

1 V

37.Source coding of speech for wireless

communications

1 V

38.Tutorial 2 V

SIGNATUE OF STAFF SIGNATURE OF HOD