Multi-Carrier Modulation Techniques for Bandwidth Efficient Communication Systems

Abstract

This paper describes the Multi-Carrier Modulation (MCM) system including the Transmitter and Receiver and presents the complete modeling and simulation analysis with results of MCM system as applicable to a Communication System and brings out the advantages of using MCM system in place of Single Carrier Modulation (SCM). Results are presented with a typical case study for MCM system in comparison with that of SCM.

Indexing terms:

• Discrete multitone modulation (DMT)
• Inter symbol interference (ISI)
• Additive white Gaussian noise (AWGN)
• Discrete Fourier transform (DFT)
• High bit rate digital subscriber line (HDSL)
• Quadrature amplitude modulation (QAM)

Additional information

Notes on contributors

Nnssrk Prasad

NNSSRK Prasad presently working as Deputy Project Director (Avionic Systems) in Aeronautical Development Agency (ADA) for LCA project. Joined ADA in 1998 from SAMEER-Mumbai (1986–1998), where he was working as Head-Signal Processing Cell. Did his BTech, in Electronics and Communication engineering and MTech in Controls and Instrumentation from JNTU College of Engineering, Kakinada, (AP) in 1985 and 1987 respectively. Presently doing PhD from IIT Bombay. He has been working in the field of Signal Processing for Radar and Communication applications since he joined SAMEER and worked for design and development of MST Radar for atmosphere research and applications. Also, he worked for Integrated Opto-electronics project of Ministry of Information Technology during his tenure at SAMEER. He is working currently for another prestigious project of the nation i.e Indian Light Combat Aircraft and for its Multimode Radar. He has more than 40 publications in national and international conferences, symposia and journals. He is a member of IEEE, IETE, IE, OSI, ISI, SEMCE and AeSI.

Pnap Rao

PNAP Rao Obtained his BTech (Hons) degree in Electronics and Communication Engineering from IIT, Kharagpur in 1963. He also obtained MS Degree in Electronics and communication from the JNT University, Hyderabad in 1984. He is also a graduate of National Defence College, New Delhi. He worked at Defence Electronics Reseach Laboratory at Hyderabad from 1964–89. He was with Aeronautical Development Agency at Bangalore from 1989 as Project Director (systems) working on avionics and weapon systems for Light Combat Aircraft (LCA) till October 2002. He is presently holding the post of emeritus scientist at ADA.

His fields of interest include EMI/EMC, Communication Systems, Electronic Warfare, V/UHF systems, Avionics systems, System Integration and Project Management. He has more than 60 papers to his credit in journals, conferences and books. He was the Hony Chairman of Society of EMC Engineers (India) from 1996 to Jan 2000. He is the Hony Secretary of dB society of India, Fellow of Aeronautical society of India (AeSI) and Fellow of The Institution of Electronics & Telecommunication Engineers (IETE). He was the chairman of Organising Committee of International Conference on EMI/EMC (INCEMIC 2001/02) held in Bangalore in Februalry 2002. He is a member of governing body of SAMEER, a scientific society under Ministry of Information Technology. He has been conferred the Dr VM Gataghe Award by the Aeronautical society of India for the year 2000 for his outstanding contribution in the LCA avionics. He is the coordinator of system panel of Aeronautics Research Development Board.