EC3501 Wireless Communication Syllabus - Anna University

EC3501 WIRELESS COMMUNICATION

L T P C

3 0 2 4

COURSE OBJECTIVES:

• To understand the basics of wireless communication systems and cellular networks
• To learn path loss and propagation models in wireless communications
• To study the effect of fading on wireless communications and techniques to counter it
• To learn the principles of cellular network design and different cellular standards
• To understand the concept of diversity and its implementation techniques

UNIT I WIRELESS COMMUNICATION BASICS

Introduction to Wireless Communications - Applications - Advantages and disadvantages of wireless systems - Wireless system standards and regulatory requirements, RF and Microwave propagation basics, Wireless propagation channels - Frequency selective and time selective fading, Wireless communication systems - Point to point and cellular systems

UNIT II PROPAGATION MODELS AND LINK BUDGETS

Path loss - Free space propagation model, Ground reflected propagation model, Statistical path loss model - Okumura model, Hata model - Urban, rural and suburban models, Indoor propagation models. Propagation measurements and models, Log distance path loss model, Fading Models - Rayleigh fading, Rician fading - Statistical properties. Link budget and system performance

UNIT III FADING AND COUNTERMEASURES

Multipath fading - Flat fading and frequency selective fading, Small scale fading models - Rayleigh and Rician fading channels, Fading mitigation - Error correction coding, Interleaving, Equalization, Channel estimation. OFDM for frequency selective channels, Spread spectrum techniques - FHSS and DSSS

UNIT IV CELLULAR NETWORK DESIGN

Cellular network design - Frequency reuse, Interference, Co-channel interference and adjacent channel interference reduction, Handover concepts. Cellular standards - Global System for Mobile Communication (GSM) - 2G, Universal Mobile Telecommunications System (UMTS) - 3G, Long Term Evolution (LTE) - 4G, 5G - Key technologies and characteristics

UNIT V DIVERSITY TECHNIQUES

Diversity techniques - Spatial diversity - Receive diversity, Transmit diversity - Alamouti scheme, Selection combining, Equal gain combining, Maximal Ratio combining. Coding for diversity - Space time codes, Turbo codes and LDPC codes for wireless. Multi-antenna systems and MIMO

THEORY: 45 PERIODS

PRACTICAL EXERCISES: 30 PERIODS

TOTAL: 75 PERIODS

COURSE OUTCOMES:

At the end of the course the students will be able to

1. CO1: Analyze the wireless propagation environment and its effects on signal transmission
2. CO2: Compute the link budget of wireless communication systems
3. CO3: Apply techniques to counter the effects of fading
4. CO4: Design cellular networks with appropriate frequency reuse patterns
5. CO5: Implement diversity techniques in wireless systems

TEXTBOOKS:

1. Theodore S. Rappaport, "Wireless Communications", 2nd Edition, Prentice Hall, 2002. (Unit I, II, III, IV, V)
2. John G. Proakis, "Digital Communications", 5th Edition, McGraw-Hill, 2007. (Unit III, V)

REFERENCES:

1. Bernard Sklar, "Rayleigh Fading Channels in Mobile Digital Communication Systems, Part I: Characterization", IEEE Communications Magazine, Vol. 35, No. 7, July 1997
2. Jakes, W.C., "Microwave Mobile Communications", IEEE Press, 1994