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WIRELESS and CELLULAR COMMUNICATION (18EC81)

WIRELESS and CELLULAR COMMUNICATION

Course Code : 18EC81
CIE Marks :40
Lecture Hours/Week : 03 
SEE Marks :60
Total Number of Lecture Hours : 40 (08 Hrs / Module) 
Exam Hours :03
CREDITS — 03


Course Learning Objectives: This course will enable students to:

Understand the concepts of propagation over wireless channels from a physics standpoint
Application of Communication theory both Physical and networking to understand GSM systems that handle mobile telephony
Application of Communication theory both Physical and networking to understand CDMA systems that handle mobile telephony.
Application of Communication theory both Physical and networking to understand LTE-4G systems.


Module-1

Mobile Radio Propagation —Large Scale Path Loss - Free Space Propagation Model, Relating Power to Electric Field, Three Basic Propagation Mechanisms — Reflection (Ground Reflection) , Diffraction, Scattering, Practical Link Budget, (Text 1 - 2.2 and Refl - Chapter 4) Fading and Multipath — Broadband wireless channel, Delay Spread and Coherence Bandwidth, Doppler Spread and Coherence Time, Angular spread and Coherence Distance (Text 1 — 2.4) Statistical Channel Model of a Broadband Fading Channel (Text 1 — 2.5.1) The Cellular Concept — Cellular Concept , Analysis of Cellular Systems, Sectoring (Text 1- 2.3) L1, L2


Module-2

GSM and TDMA Technology GSM System overview — Introduction, GSM Network and System Architecture, GSM Channel Concept. 184GSM System Operations — GSM Identities, System Operations —Traffic cases, GSM Infrastructure Communications (Um Interface) (Text 2, Part1 and Part 2 of Chapter 5) L1,L2,L3


Module-3

CDMA Technology CDMA System Overview — Introduction, CDMA Network and System Architecture CDMA Basics — CDMA Channel Concepts, CDMA System @ayer 3) operations, 3G CDMA (Text 2-Part 1, Part2 and Part 3 of Chapter 6) L1,L2,L3


Module-4

LTE — 4G Key Enablers for LTE 4G — OFDM, SC-FDE, SC-FDMA, Channel Dependant Multiuser Resource Scheduling, Multi-Antenna Techniques, Flat IP Architecture, LTE Network Architecture. (Text 1, Sec 1.4) Multi-Carrier Modulation — Multicarrier concepts, OFDM Basics, OFDM in LTE, Timing and Frequency Synchronization, Peak to Average Ration, SC- Frequency Domain Equalization, Computational Complexity Advantage of OFDM and SC-FDE. (Text 1, Sec 3.1 — 3.7) L1,L2,L3


Module-5

LTE - 4G OFDMA and SC-FDMA — Multiple Access for OFDM Systems, OFDMA, SCFDMA, Multiuser Diversity and Opportunistic Scheduling, OFDMA and SC-FDMA in LTE, OFDMA system Design Considerations. (Text 1, Sec 4.1 — 4.6) The LTE Standard — Introduction to LTE and Hierarchical Channel Structure of LTE, Downlink OFDMA Radio Resources, Uplink SC-FDMA Radio (Text 1, Sec 6.1 — 6.4) L1, L2,L3
Resources.

Course Outcomes: After studying this course, students will be able to:

1. Understand the Communication theory both Physical and networking associated with GSM, CDMA & LTE 4G systems.
2. Explain concepts of propagation mechanisms like Reflection, Diffraction, Scattering in wireless channels.
3. Develop a scheme for idle mode, call set up, call progress handling and call tear down in a GSM cellular network.
4. Develop a scheme for idle mode, call set up, call progress handling and call tear down in a CDMA cellular network.
5. Understand the Basic operations ofAir interface in a LTE 4G system.

Question paper pattern:

Examination will be conducted for 100 marks with question paper containing 10 full questions, each of 20 marks.
Each 1 question can have a maximum of 4 sub questions.
There will be 2 full questions from each module covering all the topics of the module.
Students will have to answer 5 full questions, selecting one full question from each module.
The total marks will be proportionally reduced to 60 marks as SEE marks is 60.


Text Books:

1. “Fundamentals of LTE” Arunabha Ghosh, Jan Zhang, JeffereyAndrews, Riaz Mohammed, Pearson education (Formerly Prentice Hall, Communications Engg and Emerging Technologies), ISBN— 13: 978-0— 13- 70331 1-9.
2. “Introduction to Wireless Telecommunications Systems and Networks”,Gary Mullet, First Edition, Cengage Learning India Pvt Ltd., 2006, ISBN- 13: 978-81-315—0559-5.


Reference Books:

1. “Wireless Communications: Principles and Practice” Theodore Rappaport, 2nd Edition, Prentice Hall Communications Engineering and Emerging Technologies Series, 2002, ISBN 0-13-042232—0.
2. LTE for UMTS Evolution to LTE-Advanced’ Harri Holma and Antti Toskala, Second Edition - 2011, John Wiley & Sons, Ltd. Print ISBN: 9780470660003.

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