ET3601 Telecommunication Switching and Transmission Syllabus:
ET3601 Telecommunication Switching and Transmission Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
To introduce digital transmission techniques.
To introduce the concepts of space switching, time switching and combination switching.
To introduce the need for network synchronization and study synchronization issues.
To study the enhanced local loop systems in digital environment.
To introduce ISDN, DSL / ADSL, and fiber optic systems in subscriber loop.
To introduce a mathematical model for the analysis of telecommunication traffic.
To introduce statistical modelling of telephone traffic.
UNIT I DIGITAL TRANSMISSION TECHNIQUES
The Analog Network Hierarchy, Advantages of Digital Voice Networks, Disadvantages of Digital Voice Networks, Voice Digitization, Pulse Transmission, Asynchronous versus Synchronous Transmission, Line Coding, Error Performance, Performance Monitoring, Time Division Multiplexing, Time Division Multiplex Loops and Rings. Fiber Optic Transmission System.
UNIT II DIGITAL SWITCHING AND MODULATION
Switching Functions, Space Division Switching, Time Division Switching, Two dimensional Switching, Digital Cross-Connect Systems, Digital Switching in an Analog Environment, Digital Modulation, Filter Partitioning, Emission Specifications, Radio System Design.
UNIT III NETWORK SYNCHRONIZATION CONTROL AND MANAGEMENT
Timing: Timing Recovery: Phase-Locked Loop, Clock Instability, Jitter Measurements, Systematic Jitter. Timing Inaccuracies: Slips, Asynchronous Multiplexing, Network Synchronization, U.S. Network Synchronization, Network Control, Network Management.
UNIT IV DIGITAL SUBSCRIBER ACCESS
ISDN: ISDN Basic Rate Access Architecture, ISDN U Interface, ISDN D Channel Protocol. High Data-Rate Digital Subscriber Loops: Asymmetric Digital Subscriber Line, VDSL. Digital Loop Carrier Systems: Universal Digital Loop Carrier Systems, Integrated Digital Loop Carrier Systems, NextGeneration Digital Loop Carrier, Fiber in the Loop, Hybrid Fiber Coax Systems, Voice band Modems: PCM Modems, Local Microwave Distribution Service, Digital Satellite Services.
UNIT V TELEPHONE NETWORKS AND TRAFFIC ANALYSIS
Subscriber loop systems, Switching hierarchy and routing, Transmission plan, Transmission systems, Numbering plan, Charging plan, Signalling techniques, In-channel signalling, Common channel signalling, Signalling System 7, Mobile communication: Trunking and Grade of service, Fade margin analysis, Traffic Characterization: Arrival Distributions, Holding Time Distributions, Loss Systems, Network Blocking Probabilities: End-to-End Blocking Probabilities, Overflow Traffic, Delay Systems: Exponential service Times, Constant Service Times, Finite Queues.
45 PERIODS
PRACTICAL EXERCISES: 30 PERIODS
Perform simulations using Matlab to
1. Study the Time Division Multiplexing of two band-limited sinusoidal signals.
2. Implement and compare the power spectral density of different line coding schemes.
3. Study the performance of various digital modulation schemes with an AWGN channel.
4. Study the blocking probabilities of a switching matrix with different input and output combinations.
COURSE OUTCOMES:
CO1 Comprehend the Digital Transmission Techniques
CO2 Understand the concepts of Switching Functions and modulation techniques.
CO3 Have knowledge about the network control and management issues.
CO4 Solve mathematically the telecommunication related problems.
CO5 Have knowledge about the blocking system characteristics and queuing system characteristics.
TOTAL:60 PERIODS
TEXT BOOKS
1. Bellamy John, “Digital Telephony”, John Wily & Sons, Inc. 3rd Edition. 2000.
2. Viswanathan. T., “Telecommunication Switching System and Networks”, Prentice Hall of India Ltd., 2015.
REFERENCES:
1. Bernard E. Keiser, Eugene Strange, “Digital Telephony and Network Integration”, United States: Springer US, 2013.
2. J E Flood, “Telecommunication switching, Traffic and Networks”, Pearson Education, 2002.
3. Leon W Couch, “Digital & Analog Communication Systems”, 8th Edition, Pearson Education, 2012