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