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OFDM and its Major Concerns: A Study with Way Out

2013; Taylor & Francis; Volume: 54; Issue: 1 Linguagem: Inglês

10.1080/09747338.2013.10876104

2455-4383

Rajiv Saxena, Hem Dutt Joshi,

graph theory and CDMA systems

AbstractAbstractOrthogonal Frequency Division Multiplexing (OFDM) has been adopted as a major data transmission technique by many wireless communication standards. Despite its several advantageous features, there are some major issues which should be resolved for getting its full advantages. This paper reviews these concerns of OFDM system in detail and present different available solutions of these problems. This paper gives a great insight of major problems like high peak-to-average power ratio (PAPR) problem, synchronization (time and frequency) problems. This paper also highlights the methods of inter-carrier interference (ICI) reduction available in literature.Keywords: Orthogonal frequency division multiplexingInter-carrier interferenceBit error rateWindow functionPeak-to-average power ratio (PAPR)Timing estimationFrequency estimationFrequency offset Additional informationNotes on contributorsRajiv SaxenaRajiv Saxena obtained B.E. in Electronics & Telecommunication Engineering and M.E. in Digital Techniques and Data Processing. He joined IIT, Roorkee (erstwhile UOR, Roorkee), as a QIP Fellow, towards his Doctoral Degree Program. The PhD. degree was conferred on him in Electronics and Computer Engineering. During the research tenure, Professor Saxena suggested a few corrections in one benchmark paper of Dr. A. Papoulis (a veteran in the field of Communication Engineering) published in the year 1973. These corrections were appreciated and accepted by Dr. A. Papoulis himself. He was the founder Head of the Department of Electronics & Communication Engineering at TTET, Patiala. He also served as Principal at Rustam Ji Institute of Technology, BSF Academy, Tekanpur (again on lien from MITS Gwalior), for a period of two years from January, 2004 to January, 2006. Currently Dr. Saxena is head and Professor in ECE department at JUET, Guna. Professor Saxena has supervised thirteen Ph.D. candidates in the area of wireless, cellular, mobile and digital communication, digital signal processing, digital image processing and application of DSP tools in electronic systems. Professor Saxena has published about 60 research articles in refereed journals of national and international repute. Professor Saxena is a Fellow of IETE and Sr. Member of CSI and ISTE.E-mail: rajiv.saxcna@juct.ac.inHem Dutt JoshiHem Dutt Joshi received the B.Tech. degree in ECE from Barkatullah University, Bhopal, in 1999, the M.E. degree in Communication Control and Networking (CCN) from M.I.T.S., Gwalior in the year 2004, and the PhD. degree in Electronics and Communication Engineering from Jaypee University of Engineering and Technology (JUET), Guna under the guidance of Professor Rajiv Saxena in the year 2012. From 2004 to 2006, he worked as a Lecturer in MPCT, Gwalior. In July, 2006, he joined JIET Guna, which became JUET in 2010, as a Lecturer in ECE department. From 2012 to May 2013, he worked as an Assistant Professor in JUET, Guna. Currently, he is working as an Assistant Professor in ECE department at Thapar University, Patiala. His current research interests include digital signal processing for wireless communication, multi-carrier communication and OFDM.E-mail: hemdutt@gmail.com