Superposition Modulation based Intelligent Coding Scheme & Its Impact
on 3G and 4G Mobile Communication Systems
Abstract
Performance estimation of various kinds of Turbo Codes (TCs) and their applications in modern communication systems (3G and 4G communication) have been emerged as one of the potential research areas in recent past. Moreover, lower error rates (down to 10-8) are required for the implementation of the real time and more demanding applications such as TV broadcasting or videoconferencing. Improvement in BER performance is accomplished either by implementing optimum power allocation based 3D-TC or by designing of 4D-TC structure.
A modified interleaver driven binary 4-Dimensional Turbo Code (4D-TC) using Superposition Modulation (SM) technique is projected to intensify the Minimum Hamming Distance (MHD). The MHD of the proposed structure is amplified by incorporating feedback polynomial in primitive form for a fixed interleaver length as well as by introducing a modified interleaver for scattering and mixing the incoming bits in an appropriate manner. Furthermore, upper bound of the proposed structure is evaluated and asymptotic behaviour of the proposed code is analysed in terms of dmin by adopting two analytical approaches namely finite length rule and asymptotic spectral shape function.
The asymptotic weight distribution is reconnoitred to show that dmin asymptotically grows linearly with the block lengths. Finally, 4DTC (8-states as well as 16-states) with three different versions of the TCs namely, PCCTC, SCCTC and conventional 3D-TC along with Superposition Modulation Scheme have been used in 3G & 4G communication systems for enrichment of BER performances.
Short Biography
Dr. Subhabrata Banerjee is a Professor in the department of Electronics and Communication Engineering, Institute of Engineering & Management, Kolkata, India. He was awarded National Scholarship by WBED, West Bengal Government. He received his M.Tech. and PhD degrees in Electronics and Telecommunication Engineering from renowned Jadavpur University, Kolkata, India. He initially worked as Programmer Analysist in Cognizant Technology Solution and then was working as Assistant Professor in the Department of Electronics and Communication Engineering at Future Institute of Engineering and Management, Kolkata, India and as Associate Professor in the same institution thereafter. He is now working as Professor in Institute of Engineering and Management, Kolkata, India since 2021. He was authored numerous articles published in prestigious journals including Wireless Personal Communication (Springer), Personal and Ubiquitous Computing (Springer), International Journal of Communication Systems (Wiley) and Institution of Engineering and Technology (IET, UK). He has published more than 30 papers in International Conferences and International Journals of repute. He also published book chapter under IET, UK publication. He has also published a book named Genetic Algorithms and Machine Learning for Python Programmers. His current research interests include Communication and Coding Theory, Machine Learning, Robotics, IOT, Control System, and Evolutionary Algorithms, Soft Computation.