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Course Co-ordinated by IIT Kharagpur
Prof. Debarati Sen
IIT Kharagpur


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Originally adopted in military networks as a means of ensuring secure communication when confronted with the threats of jamming and interception, spread spectrum systems are now the core of commercial applications such as mobile cellular and satellite communications. Over the years, the most successful implementation of spread spectrum communication in commercial world lies in CDMA 2000, WCDMA and UMTS, WLAN, Ultra Wideband Communications (UWB), Body Area Networks, and energy efficient future generation Millimeter Wave (mmWave) communications. The present course introduces basic principle of spread spectrum techniques, key concept of code designing supported by Galois field mathematics, understanding Jamming environment and interference handling mechanisms. The theoretical principles are tempered with their practical significance to cope up with the interest to both researchers and system designers. Learning is facilitated by streamlined derivations, tutorials, and assignments.




Types of Spread Spectrum Systems: Different Spreading Techniques will be addressed


Spreading Sequences: Generation Mechanism of sequences and Waveforms


Properties of Spreading Sequences: Code Properties and comparative studies


Systems under Jamming: Performance Analysis


Galois Field Mathematics: Concept of code generator polynomial and characteristic equation


Interference Rejection Techniques


Code Acquisition Mechanism


Code Tracking Mechanism


Concept of Fading Channels and Diversity


CDMA Technology and Interference Handling Mechanisms


MUD and Performance Analysis of CDMA Networks


WCDMA; Low Probability of Intercept Methods
Digital Communication, Fundamentals of Wireless Communications
Principles of Spread-Spectrum Communication Systems, Don Torrieri, Springer, 2004. This book will be followed in the course.
Spread Spectrum Systems for GNSS and Wireless Communications, Jack K. Holmes, Artech House, 2007.
Spread spectrum Systems by R. C. Dixon.
Signal design for Good Correlation by S. W. Golomb and G. Gong, Cambridge Univ.Press, 2005
Presentations used in the Course.
Reference Material: Theory and Applications of OFDM and CDMA- Wideband Wireless Communications, Henrik Schulze and Christian Luders, John Wiley and Sons Ltd, 2007.
Introduction to Spread Spectrum Communications by R. L. Peterson, R. E. Ziemer and D.E. Borth, Pearson Education, 1995 CDMA Systems capacity Engineering by K. Kim and I. Koo, Artech House, 2005

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