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ECE432:SPREAD SPECTRUM TECHNIQUES
L:3 T:0 P:0
Course Objectives:
To learn principles o f multi-carrier and spread spectrum
To learn multi-carrier techniques: MC-OFDMA, MC-CDMA and MC-DS-CDMA
To learn commercial applications of multi-carrier techniques
Unit I
Fundamentals: Radio channel characteristics, Understanding radio channel,
Channel modelling, Channel fade Statistics, Inter-Symbol (ISI) and Inter-ChannelInterference (ICI), Multi-carrier channel modeling, Why bother with Spread spectrum
system?
Spread Spectrum Techniques: Spread Spectrum Techniques, Direct sequence
code division multiple access, Frequency-Hopping Code division multiple access,
Advantages and dis-advantages of DS-CDMA and FH-CDMA, Multi carrier spreadspectrum, Principles of various schemes, Principles of various schemes, Advantages
and Drawbacks
Orthogonal Frequency Division Multiplexing: Diversity, Diversity Techniques,
Multi-Carrirer Transmission, Orthogonal Frequency Division Multiplexing (OFDM),
Advantages and Drawbacks of OFDM, Application and standards, Introduction of
OFDM
Unit II
MC-CDMA and MC-DS-CDMA: MC-CDMA, Signal Structure, Downlink Signal, Uplink
Signal, Spreading Techniques, Detection Techniqes, Pre-Equalization, Soft channeldecoding, MC-DS-CDMA, MC-DS-CDMA Signal Structure, MC-DS-CDMA Downlink
Signal and Uplink Signal, MC-DS-CDMA Detection Techniques
Unit III
Hybrid Multiple Access Schemes: Introduction, Multi-carrier FDMA, Orthogonal
Frequency Division Multiple Access (OFDMA), OFDMA with CDMA: SS-MC-MA,
Interleaved FDMA, Multi-carrier-TDMA, Pseudo-Random PPM-UWB Signal Generation,
UWB Transmission Schemes
Unit IV
Implementation Issues: Multi-carrier modulation and demodulation, Pulse shaping
in OFDM, Digital implementation of OFDM, Synchronization, Time Synchronization,Frequency Synchronization
Channel Codes: Channel coding and decoding, Punctured convolutional coding,
Concatenated convolutional and Reed solomon coding, Turbo coding, Adaptive
technique in multi carrier transmissions, RF Issues
Unit VApplications: Wireless local area networks, Channel characteristics, IEEE 802.11a,
WiMax-Scope, From IEEE 802.16x and ETSI BRAN HIPERMAN towards WiMax,System architecture
Unit VI
Additional Techniques for Capacity and Flexibility Enhancement: General
Principle of multi-antenna diversity, BLAST architecture, Space-time coding, Diversitytechniqes for multi-carrier transmission, transmit diversity, receive diversity, UMTS-
WCDMA
Text Books:
1. MULTI CARRIER AND SPREAD SPECTRUM SYSTEMS by K. FAZEL AND S. KEISER,
WILEY, 6th Edition, (2009)
Credits:3
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7/21/2019 ECE432 syllabus
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References:
1. FUNMDAMENTALS OF SPREAD SPECTRUM MODULATION by E.ZIEMER, MORGAN
KAUFMANN PUBLISHERS, 5th Edition, (2009)
2. MOBILE COMMUNICATION by JOCHEN SCHILLER, ADDISON WISELY, 2nd
Edition, (2003)
3. WIRELESS COMMUNICATION by THEODORE S. SAPPAPORT, PEARSON, 2nd
Edition,
4. SPREAD SPECTRUM SYSTEMS WITH COMMERCIAL APPLICATIONS by ROBERT C.
DIXON, WILEY-INDIA, NEW DELHI, 3rd Edition, (2010)
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