EC6651 Notes Communication Engineering

EC6651 Notes Communication Engineering Regulation 2013 Anna University free download. Communication Engineering Notes pdf free download.

OBJECTIVES EC6651 Notes:

To introduce different methods of analog communication and their significance

Introduce Digital Communication methods for high bit rate transmission

To introduce the concepts of source and line coding techniques for enhancing rating of transmission of minimizing the errors in transmission.

Introduce MAC used in communication systems for enhancing the number of users.

To introduce various media for digital communication.

OUTCOMES EC6651 Notes:

Ability to understand and analyse, linear and digital electronic circuits.

TEXT BOOKS:

1. Taub & Schiling “Principles of Communication Systems” Tata McGraw Hill 2007.

2. J.Das “Principles of Digital Communication” New Age International, 1986.

REFERENCES EC6651 Notes:

1. Kennedy and Davis “Electronic Communication Systems” Tata McGraw hill, 4th Edition, 1993.

2. Sklar “Digital Communication Fundamentals and Applications“ Pearson Education, 2001.

3. Bary le, Memuschmidt, Digital Communication, Kluwer Publication, 2004.

4. B.P.Lathi “Modern Digital and Analog Communication Systems” Oxford University Press, 1998.

NOISE – EC6651 Notes:

Noise is an unwanted electrical signal which gets added on a transmitted signal when it is travelling towards the receiver. Electrical noise is defined as any undesired electrical energy.

For Example: In audio recording any unwanted electrical signals that fall within the audio frequency band of 0 khz to 15khz will interface with the music and therefore considered as noise.

Noise figure is a figure of merit and used to indicate how much the signal to noise ratio gets degraded as a signal passes through a series of circuits. Noise can be divided into two general categories:

(i) Correlated Noise : Implies a relationship between the signal and the noise.

(ii) Uncorrelated Noise : It is present all the time whether there is a signal or not. Uncorrelated Noise: Uncorrelated can be divided into two general categories:

(i) External noise and (ii) Internal noise.