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On the redundant carrier distribution for UW-OFDM

Heidi Steendam UGent (2012) IEEE Wireless Communications and Networking Conference. p.32-36
abstract
Unique word (UW) OFDM is a new multicarrier technique that was first introduced in [1]. In this technique, the guard interval is a part of the inverse FFT (IFFT) output, and is filled with known symbols. To be able to construct – by using an IFFT – a time domain signal containing a block of known samples, it is necessary to sacrifice a number of carriers. These carriers are called redundant carriers and the symbols modulated on these redundant carriers depend on the data to be transmitted. In this paper, we evaluate the distribution of the redundant carriers over the bandwidth. It turns out that when the positions of the redundant carriers are not carefully selected, the extra energy needed for the redundant carriers can become very large. We propose a novel algorithm for the placement of the redundant carriers that is based on a simple analytical expression, such that extensive simulations to find the optimal distribution is avoided. The proposed distribution yields essentially minimal average redundant energy.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
IEEE Wireless Communications and Networking Conference
issue title
2012 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)
pages
32 - 36
publisher
IEEE
place of publication
Piscataway, NJ, USA
conference name
IEEE Wireless Communications and Networking Conference (WCNC)
conference location
Paris, France
conference start
2012-04-01
conference end
2012-04-04
Web of Science type
Proceedings Paper
Web of Science id
000324580700007
ISSN
1525-3511
ISBN
9781467304351
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2128916
handle
http://hdl.handle.net/1854/LU-2128916
date created
2012-06-01 13:40:04
date last changed
2014-06-17 11:57:17
@inproceedings{2128916,
  abstract     = {Unique word (UW) OFDM is a new multicarrier technique that was \unmatched{fb01}rst introduced in [1]. In this technique, the guard interval is a part of the inverse FFT (IFFT) output, and is \unmatched{fb01}lled with known symbols. To be able to construct -- by using an IFFT -- a time domain signal containing a block of known  samples, it is necessary to sacri\unmatched{fb01}ce a number of carriers. These carriers are called redundant carriers and the symbols modulated on these redundant carriers depend on the data to be transmitted. In this paper, we evaluate the distribution of the redundant carriers over the bandwidth. It turns out that when the positions of the redundant carriers are not carefully selected, the extra energy needed for the redundant carriers can become very large. We propose a novel algorithm for the placement of the redundant carriers that is based on a simple analytical expression, such that extensive simulations to \unmatched{fb01}nd the optimal distribution is avoided. The proposed distribution yields essentially minimal average redundant energy.},
  author       = {Steendam, Heidi},
  booktitle    = {IEEE Wireless Communications and Networking Conference},
  isbn         = {9781467304351},
  issn         = {1525-3511},
  language     = {eng},
  location     = {Paris, France},
  pages        = {32--36},
  publisher    = {IEEE},
  title        = {On the redundant carrier distribution for UW-OFDM},
  year         = {2012},
}

Chicago
Steendam, Heidi. 2012. “On the Redundant Carrier Distribution for UW-OFDM.” In IEEE Wireless Communications and Networking Conference, 32–36. Piscataway, NJ, USA: IEEE.
APA
Steendam, H. (2012). On the redundant carrier distribution for UW-OFDM. IEEE Wireless Communications and Networking Conference (pp. 32–36). Presented at the IEEE Wireless Communications and Networking Conference (WCNC), Piscataway, NJ, USA: IEEE.
Vancouver
1.
Steendam H. On the redundant carrier distribution for UW-OFDM. IEEE Wireless Communications and Networking Conference. Piscataway, NJ, USA: IEEE; 2012. p. 32–6.
MLA
Steendam, Heidi. “On the Redundant Carrier Distribution for UW-OFDM.” IEEE Wireless Communications and Networking Conference. Piscataway, NJ, USA: IEEE, 2012. 32–36. Print.