Saturday, January 3, 2015


EC6801 WIRELESS COMMUNICATION syllabus-subject-notes-pevious-year-questions-papers-bank

OBJECTIVES: The student should be made to:
 Know the characteristic of wireless channel
 Learn the various cellular architectures
 Understand the concepts behind various digital signaling schemes for fading channels
 Be familiar the various multipath mitigation techniques
 Understand the various multiple antenna systems

UNIT I WIRELESS CHANNELS 9 Large scale path loss – Path loss models: Free Space and Two-Ray models -Link Budget design – Small scale fading- Parameters of mobile multipath channels – Time dispersion parameters-Coherence bandwidth – Doppler spread & Coherence time, Fading due to Multipath time delay spread – flat fading – frequency selective fading – Fading due to Doppler spread – fast fading – slow fading.

UNIT II CELLULAR ARCHITECTURE 9 Multiple Access techniques - FDMA, TDMA, CDMA – Capacity calculations–Cellular concept- Frequency reuse - channel assignment- hand off- interference & system capacity- trunking & grade of service – Coverage and capacity improvement.

UNIT III DIGITAL SIGNALING FOR FADING CHANNELS 9 Structure of a wireless communication link, Principles of Offset-QPSK, p/4-DQPSK, Minimum Shift Keying, Gaussian Minimum Shift Keying, Error performance in fading channels, OFDM principle – Cyclic prefix, Windowing, PAPR.

UNIT IV MULTIPATH MITIGATION TECHNIQUES 9 Equalisation – Adaptive equalization, Linear and Non-Linear equalization, Zero forcing and LMS Algorithms. Diversity – Micro and Macrodiversity, Diversity combining techniques, Error probability in fading channels with diversity reception, Rake receiver,

UNIT V MULTIPLE ANTENNA TECHNIQUES 9 MIMO systems – spatial multiplexing -System model -Pre-coding - Beam forming - transmitter diversity, receiver diversity- Channel state information-capacity in fading and non-fading channels.

OUTCOMES: At the end of the course, the student should be able to:
 Characterize wireless channels
 Design and implement various signaling schemes for fading channels
 Design a cellular system
 Compare multipath mitigation techniques and analyze their performance
 Design and implement systems with transmit/receive diversity and MIMO systems and analyze their performance

TEXTBOOKS: 1. Rappaport,T.S., “Wireless communications”, Second Edition, Pearson Education, 2010. 2. Andreas.F. Molisch, “Wireless Communications”, John Wiley – India, 2006.

1. David Tse and Pramod Viswanath, “Fundamentals of Wireless Communication”, Cambridge University Press, 2005.
2. Upena Dalal, “ Wireless Communication”, Oxford University Press, 2009.
3. Van Nee, R. and Ramji Prasad, “OFDM for wireless multimedia communications”, Artech House, 2000.

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