MTEC-103A	Wireless & Mobile Communication
Lecture	Tutorial	Practical	Credit	Major Test	Minor Test	Total	Time
3	0	0	3	60	40	100	3 Hrs.
Course Outcomes (CO)
CO1	Apply frequency-reuse concept in mobile communications, and to analyze its effects on interference, system capacity, handoff techniques
CO2	Distinguish various multiple-access techniques for mobile communications e.g. FDMA, TDMA, CDMA, and their advantages and disadvantages.
CO3	Analyze path loss and interference for wireless telephony and their influences on a mobile- communication system's performance.
CO4	Analyze and design CDMA system functioning with knowledge of forward and reverse channel details, advantages and disadvantages of using the technology, understanding upcoming technologies like 3G, 4G etc.

## Unit 1

Cellular Communication Fundamentals: Cellular system design, Frequency reuse, cell splitting, handover concepts, Co channel and adjacent channel interference, interference reduction techniques and methods to improve cell coverage, Frequency management and channel assignment.GSM architecture and interfaces, GSM architecture details, GSM subsystems, GSM Logical Channels, Data Encryption in GSM, Mobility Management, Call Flows in GSM.2.5 G Standards: High speed Circuit Switched Data (HSCSD), General Packet Radio Service (GPRS), 2.75 G Standards: EDGE,

## Unit 2

Spectral efficiency analysis based on calculations for Multiple access technologies:TDMA,FDMA and CDMA,Comparison of these technologies based on their signal separation techniques, advantages, disadvantages and application areas.Wireless network planning (Link budget and power spectrum calculations)

## Unit 3

Mobile Radio Propagation:Large Scale Path Loss, Free Space Propagation Model,Reflection, Ground Reflection (Two-Ray) Model, Diffraction, Scattering, Practical Link Budget Design using Path Loss Models, Outdoor Propagation Models, Indoor Propagation Models, Signal Penetration into Buildings. Small Scale Fading and Multipath Propagation, Impulse Response Model, Multipath Measurements, Parameters of Multipath channels, Types of Small Scale Fading: Time Delay Spread; Flat, Frequency selective, Doppler Spread; Fast and Slow fading.Equalization, Diversity:Equalizers in a communications receiver, Algorithms for adaptiveequalization, diversity techniques, space, polarization, frequency diversity, Interleaving.

## Unit 4

Code Division Multiple Access:Introduction to CDMA technology, IS 95 systemArchitecture, Air Interface, Physical and logical channels of IS 95, Forward Link and Reverse link operation, Physical and Logical channels of IS 95 CDMA, IS 95 CDMA Call Processing, soft Handoff, Evolution of IS 95 (CDMA One) to CDMA 2000, CDMA 2000 layering structure and channels.Higher Generation Cellular Standards:3G Standards: evolved EDGE, enhancements in 4Gstandard, Architecture and representative protocols, call flow for LTE, VoLTE, UMTS, introduction to 5G

## References:

1. 1. V.K.Garg, J.E.Wilkes, 'Principle and Application of GSM', Pearson Education, 5 edition, 2008. th 2. V.K.Garg, 'IS - 95 CDMA & CDMA 2000', Pearson Education, 4 edition, 2009.

3. 3. T.S.Rappaport, 'Wireless Communications Principles and Practice', 2 edition, PHI,2002. nd 4. William C.Y.Lee, 'Mobile Cellular Telecommunications Analog and Digital Systems', 2 edition, TMH, 1995.

- 5. Asha Mehrotra, 'A GSM system Engineering' Artech House Publishers Bosten, London,1997.