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Name of the course: COMMUNICATION ENGINEERING (3L)
Course Code: OE-601B
Semester: 6th
Course Instructor : Prof.(Dr.) Tribeni Prasad Banerjee
Typical Class Schedule:
Tuesday: 2 to 3 PM
Friday: 12 to 1 PM
Saturday: 2 to 3 PM
Assessment Scheme:
Mid: 15 Marks
Assignment & Quiz: 10 Marks
Attendance: 05 Marks
Final Semester Exam: 70 Marks
Course Objective:
To understand the AM, FM and PM schemes with reference to SNR
To understand the performance of ASK, FSK, PSK, BPSK, QPSK in a digital communication system
To understand the source coding and channel coding schemes for a given communication link
To understand the band width requirement and probability of error in various digital modulation systems
To understand various digital modulation methods
To solve numerical problems on the topics studied
Module I- Elements of communication system:
The elements of a communication system,origin of noise and its effect, importance of SNR in system design. Basic principle of linear (AM) modulation,Generation of AM waves, Demodulation of AM wave. Basic principle of nonlinear (FM, PM) modulation. Generation of FM waves. Demodulation of FM waves. Sampling theorem, sampling rate, impulse sampling, reconstruction from samples, Aliasing. Analog pulse modulation-PAM (natural & flat topped sampling), PWM, PPM. Basic concept of Pulse code modulation, Block diagram of PCM, Multiplexing-TDM, FDM.
Module II-Digital transmission:
Concept of Quantization & Quantization error, Uniform quantizer, Non-uniform quantizer, A-law and μ -law.Encoding, coding efficiency. Line coding & properties, NRZ & RZ,AMI, Manchester coding, PCM, DPCM. Base band pulse transmission, Matched filter, error rate due to noise, ISI, Raised cosine function, Nyquist criterion for distortion-less base band binary transmission, Eye pattern, Signal power in binary digital signal.
Module III-Digital carrier modulation & demodulation technique:
Bit rate,Baud rate,Information capacity, Shanon’s limit, M-ary encoding, Introduction to the different digital modulation techniques-ASK.FSK, PSK, BPSK, QPSK, mention of 8 BPSK, 16 BPSK.Introduction to QAM, basic of 8 QAM, 16 QAM. Basic concept of Delta modulating, Adaptive delta modulation. Introduction to theconcept DPCM. Basic concept of spread spectrum modulation.
Module IV-Introduction to coding theory:
Introduction, News value &Information content, Entropy, Mutual information, Information rate, Shanon-Fano algorithm for encoding, Shanon’s theorem-source coding theorem,Channel coding theorem,Information capacity theorem.Basic principle of Error control & coding.
Assessment Process:
[CA3 Assessment Process-> Class Attendance+All Quiz Avg+Assignment 1 ]-Date of Submission
[CA4 Assessment Process-> Class Attendance+All Quiz Avg+ Mini Project]
Revised schedule of Even Semester 2020-21
1. Class Test (CA1, CA2, CA3, CA4): All Mandatory
2. Tutorial:
3. Assignment: Assessment 1 [Last date of submission-29/06/2021 ]
4. Mini Project: At list one [Project List] [Last date of submission- 02/07/2021 extended to 06/07/2021]
Text book:
1. An Introduction to Analog and Digital communication, Simon Haykin, Wiely India.
2. Analog communication system, P. Chakrabarti, Dhanpat Rai & Co.
3. Principle of digital communication, P. Chakrabarti, Dhanpat Rai & Co.
4. Modern Digital and Analog Communication systems, B.P. Lathi, Oxford university press
Reference books:
1. Digital and Analog communication Systems, Leon W Couch II, Pearson Education Asia.
2. Communication Systems, A.B. Calson, Mc Graw Hill.
Course Outcome:
After completion of this course, the learners will be able to:
1. compare the performance of AM, FM and PM schemes with reference to SNR
2. explain noise as a random process and its effect on communication receivers
3. evaluate the performance of ASK, FSK, PSK, BPSK, QPSK in a digital communication system
4. identify source coding and channel coding schemes for a given communication link
5. analyze various digital modulation methods
6. compute band width requirement and probability of error in various digital modulation systems
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