Objectives:
With this paper students should be able to analyze the characteristics of a typical digital switching network.
Module I (13 hours)
Electronic switching systems: basics of a switching system - electronic space division switching - stored program control - time division switching - time multiplexed space switching - time multiplexed time switching - two-stage network - three-stage network - n-stage network- two stage, three stage and N-stage combination switching-
Module II (13 hours)
Digital circuit switching networks: Non-blocking switches - blocking probability analysis of multistage switches - lee approximation - improved approximate analysis of blocking switch - examples of digital switching systems - AT & T 5ESS and NTI - DMS 100 switching systems
Module III (13 hours)
Elements of traffic engineering: network traffic load and parameters - grade of service and blocking probability - incoming traffic and service time characterization - blocking models and loss estimates - delay systems
Module IV (13 hours)
Signaling: customer line signaling - outband signaling - inband signaling - PCM signaling - inter register signaling - common channel signaling principles - CCITT signaling system No: 7 - digital customer line signaling
Introduction to ATM switching – Strict sense non block switch – self routing switches – Bense network – ATM routers – Design of typical switches.
Text books
1.Viswanathan T., Telecommunication Switching Systems and Networks, Prentice Hall of India Pvt. Ltd.
2.Schwartz M., Telecommunication Networks - Protocols, Modeling and Analysis, Addison Wesley Publishing Company
Reference books
1.Flood J.E., Telecommunications Switching Traffic and Networks, Pearson Education Pvt. Ltd.
2.Freeman R.L., Telecommunication System Engineering, Wiley Inter Science Publications
3.Das J., Review of Digital Communication, New Age Internal (P) Ltd., Publishers