New Efficient Timing and Frequency Error Estimation in OFDM

Authors

  • A. P. Rathkanthiwar Department of Electronics Engineering, Priyadarshini College of Engineering, Nagpur, MS, India
  • A. S. Gandhi Professor, Department of Electronics, Vesvesvarya National Institute of Technology, Nagpur, MS, India

DOI:

https://doi.org/10.13052/jcsm2245-1439.235

Keywords:

Synchronization, orthogonal frequency division multiplexing (OFDM), timing estimation, CFO, CFO estimation

Abstract

Orthogonal frequency division multiplexing (OFDM) technique is being applied extensively to high data rate digital transmission as it is a bandwidth efficient modulation scheme. In OFDM system, intersymbol interference (ISI) and intercarrier interference (ICI) occur due to synchronization errors. Fast, simple and robust synchronization algorithms are necessary for OFDM systems. In OFDM downlink transmission, every terminal perform synchronization by exploiting reference symbols called training symbols of received frame. In this paper we are presenting very simple method of synchronization which uses training symbol to determine timing and frequency synchronization error. Proposed synchronization techniques result in better performance with respect to all the parameters despite being simple.

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Author Biographies

A. P. Rathkanthiwar, Department of Electronics Engineering, Priyadarshini College of Engineering, Nagpur, MS, India

Anagha Rathkanthiwar did her BE (Electronic Engg) and M.Tech. (Electronics) in 1992 and 2003 respectively from RTMNU Nagpur (Nagpur University). She is pursuing her Ph.D. from Vesvesvaraya National Institute of Technology (VNIT), Nagpur. Currently, she is working as Assistant Professor in Electronics Engineering Department, Priyadarshini College of Engineering, Nagpur, Maharashtra, India.

She has published 14 research papers in international conferences and journals. Her research interests include signal processing, wireless communication. She has reviewed several research papers of International and National conferences. Also she has chaired sessions at National Conferences. E-mail: anagharathkanthiwar@yahoo.co.in

A. S. Gandhi, Professor, Department of Electronics, Vesvesvarya National Institute of Technology, Nagpur, MS, India

Abhay S. Gandhi did his BE (Electronic Engg) in 1989 from Visvesvaraya Regional College of Engineering (VRCE), Nagpur and ME (ECE) from Indian Institute of Science, Bangalore in 1991. After working for 3 years in industry and education, he joined VRCE (Now VNIT), Nagpur as Lecturer in July 1994. He has completed his PhD in August 2002. Currently, he is working as Professor at Department of Electronics Engineering, VNIT.

He has published 26 research papers in international conferences and journals. His research interests include signal processing, wireless digital communication, radio frequency (RF) circuits, and computer networks. E-mail: asgandhi@ece.vnit.ac.in

References

D. K. Kim, S. H. Do, H. B. Cho, H. J. Choi and K. B. Kim. A New Joint Algorithm Of Symbol Timing Recovery And Sampling Clock Adjustment For OFDM Systems, IEEE Transactions on Consumer Electronics, vol. 44, No.3, August 1998.

J. J. van de Beek, M. Sandell, P. O. Borjesson. ML estimation of time and frequency offset in OFDM systems, Signal Processing, IEEE Transactions on [see also Acoustics, Speech, and Signal Processing, IEEE Transactions Volume 45, Issue 7, Page(s):1800-1805, July 1997.

B. Ai, Member, IEEE, J.-h. Ge, Y. Wang, Member, IEEE, S. Y. Yang, and P. Liu. Decimal Frequency Offset Estimation in COFDM Wireless Communications, 154 IEEE Transactions on broadcasting, vol. 50, no. 2, June 2004.

O. Ureten and Selc¸uk Tas¸ciŏglu. Autocorrelation Properties Of OFDM Timing Synchronization Waveforms Employing Pilot Subcarriers, Research Article EURASIP Journal on Wireless Communications and Networking.

D. Landstrijml, S. Kate, W. J.-J. van de Beek. Per Odling' Per O. Borjesson'. Symbol time offset estimation in coherent OFDM systems” 1999 IEEE.

M. K. Morelli, C.-C. J. Pun, M.-O. Synchronization Techniques for Orthogonal Frequency Division Multiple Access (OFDMA): A Tutorial Review, Proceedings of the IEEE, Volume: 95, Issue: 7, On page(s): 1394-1427, July 2007.

T. M. Schmidl and D. C. Cox. Robust frequency and timing synchronization for OFDM, IEEE Trans. on Commun., vol. 45, no. 12, pp. 1613-1621, Dec. 1997.

K. Shi and B. E. Serpedin. Coarse frame and carrier synchronization of OFDM systems: A new metric and comparison”, IEEE Trans. Wireless Commun., vol. 3, no. 4, pp. 1271-1284, Jul. 2004.

J. Kim, J. Noh, K. H. Chang. An efficient timing synchronization method for OFDMA system, Wireless Communications and Applied Computational Electromagnetics, 2005. IEEE/ACES International Conference on 3-7 April 2005 Page(s):1018-1021.

H. Puska and H. Saarnisaari. Matched Filter Time and Frequency Synchronization Method for Ofdm Systems Using PN-Sequence Preambles, The 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC'07) University of Oulu, Centre for Wireless Communications (CWC).

Channel Models : A Tutorial V1.0 by Raj Jain February 21, 2007.

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Published

2014-07-20

How to Cite

1.
Rathkanthiwar AP, Gandhi AS. New Efficient Timing and Frequency Error Estimation in OFDM. JCSANDM [Internet]. 2014 Jul. 20 [cited 2024 Apr. 25];2(3-4):291-306. Available from: https://journals.riverpublishers.com/index.php/JCSANDM/article/view/6155

Issue

2014: Vol 2 Iss 3-4

Section

Articles