Unit I : Switching Techniques for Voice and Data Switching techniques for Voice : Manual Switching System, Electronic Switching System and Time Division Switching. Single Stage networks, Gradings, Two stage and Three stage networks. Synchronization, Control of switching systems : Call processing Functions, Common Control, Reliability, Availability and Security. Switching techniques for Data : Circuit switching, Message Switching and packet Switching in perceptive with mobile communication. (Chapter - 1) Unit II : Traffic Engineering and Signalling Telecommunication Traffic : Unit of Traffic, Traffic measurement, A mathematical model, Lost- call systems: Theory, traffic performance, loss systems in tandem, traffic tables. Queuing systems: Erlang Distribution, probability of delay, Finite queue capacity, Systems with a single server, Queues in tandem, delay tables and application of delay formulae. Signaling : Customer line signaling. FDM carrier systems, PCM signaling, Inter-register signaling, Common channel signaling, CCITT signaling system and Digital customer line signaling. (Chapter - 2) Unit III : Cellular Concept Introduction to cellular telephone system, Cellular concept : Expansion of mobile system capacity through frequency reuse, Cell geometry, Selection of cluster size, Cell splitting and sectoring, Coverage and capacity in cellular system and Handoff strategies. Propagation Mechanism : Free space and two ray propagation model, Basic propagation mechanism. Hata outdoor propagation model. Small Scale Fading and Multipath : Types of Small scale fading, Small scale multipath propagation, Impulse response model of multipath channel and Small scale multipath measurements. (Chapter - 3) Unit IV : GSM Fundamentals Introduction, Architecture of GSM, characteristics of GSM standards, services, Radio transmission parameters in GSM System, Applications. (Chapter - 4) Unit V : GSM Channels and Services Traffic and Logical Channels in GSM, GSM time hierarchy, GSM burst structure, Description of call setup procedure, Handover mechanism in GSM, Security in GSM. Data transmission in GSM : Data Services, SMS, HSCSD, GPRS, EDGE. Multiple Access Techniques-TDMA, CDMA and OFDMA. (Chapter - 5) Unit VI : Evolution of Mobile Technologies Evolution of Mobile Generation and its comparison(GSM & CDMA) Overview of LTE : LTE basics, LTE frame structure, LTE Design parameters with Standardization and Architecture of LTE. Overview of 5G Networks : Comparison of 4G and 5G technology, Opportunities and requirements in 5G network, Open Wireless Architecture of 5G network and Disruptive technologies for 5G. (Chapter - 6)
