RGPV / RGTU B.E. EC, 5th (V) Semester syllabus EC 501 Voice Communication Revised syllabus Electronics and Communication Engineering (EC)

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Rajiv Gandhi Technological University, Bhopal (MP)
B.E. (EC) Electronics and Communication Engineering FOURTH IV SEMESTER
EC 501 Voice Communication
Revised Syllabus and Scheme of Examination Effective from July 2007

Unit I Basic Telephony : Introduction, standard telephone set, function, local loop, block diagram, basic call procedure, call progress tones and signals, cordless telephones, caller identification, electronic telephones, telephone circuit - local subscriber loop, channel noise and units of power measurements, transmission parameters, voice frequency circuit arrangements, crosstalk.

Unit II Public telephone network: Introduction, transmission system environment, public telephone network, instruments, local loops, trunk circuits, telephone exchanges - local exchanges, automated central office switches and exchanges, telephone numbering plan, telephone services, telephone switching hierarchy, common channel signaling systemevolution of SS7, signaling points, call setup, Multiplexing of telephone channels - frequency division multiplexing, FDM hierarchy, composite base-band signals, formation of groups, super groups, master groups and radio channel, wavelength division multiplexing. Traffic analysis: traffic characterization and measurement, arrival and holding time distributions, loss systems, lost call estimation, network blocking probabilities.

Unit III Digital telephony: Introduction, advantages and disadvantages of digital voice network, voice digitization, time division multiplexing of PCM signals, digital carrier, Super-frame TDM format, Fractional T Carrier Service, Digital hierarchy, Master Group and Commercial TV, Picture Phone Terminal, Data Terminal, Digital Carrier Line Encoding, Duty Cycle, Bandwidth Requirement, Clock and Framing Bit Recovery, Error Detection, T Carrier System, T-1 Carrier System, , Statistical TDM, Codec and Combo Chips.

Unit IV Digital transmission: Introduction, digital data and digital signal, pulse transmission, inter-symbol, interference, synchronous and asynchronous transmission, line coding – level encoding, bipolar coding, Code Space redundancy, N zero substitution, Pair Selected ternary, Ternary coding, digital bi-phase, differential encoding, coded mark inversion, multilevel signaling, partial response signaling, error performance, performance monitoring, time division multiplexing - Bit vs Word Interleaving, framing, TDM loops and rings.

Unit V Digital switching: Switching function, space division switching, multistage switching, non-blocking switches, blocking probabilities, four wire switches, switch matrix control, time division switching – analog and digital, two dimensional switching, multi stage time and space switching, STS and TST switching, digital cross connect systems, digital switching in analog environment.

1. W. Tomasi: Advanced Electronic Communication Systems, 6th Edition, PHI
2. W. Tomasi: Electronic Communication Systems, Pearson Education
3. John C.Bellamy: Digital Telephony, 3rd Edition, Willey India Pvt. Limited
4. T. Vishwanathan: Telecommunication Switching Systems and Networks, PHI.
5. James Martin: Telecommunication and Computers, PHI
6. G. F. Snyder: Introduction to Telecommunication Networks, Vikas Publishing House.
7. Cole Marion: Introduction to Telecommunication, Pearson Education.

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