Paper Abstract and Keywords |
Presentation |
2013-12-03 13:00
[Poster Presentation]
A Study on Frequency-Domain Equalizer for OFDM systems without Guard Interval Yuta Kasajima, Hiroyuki Hatano, Masahiro Fujii, Yu Watanabe (Utsunomiya Univ.) WBS2013-39 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
OFDM system can avoid Inter Symbol Interference (ISI) by adding Guard Interval (GI) at the front part of the OFDM symbol period.
However, GI is essentially wasted on data transmission because it is removed at the receiver.
In this paper, we propose a new OFDM system without GI by each OFDM symbol period.
In order to reduce ISI caused by OFDM signal without GI, we adapt the Frequency Domain Equalization (FDE) technique.
Making use of the FDE based on Minimum Mean Square Error criterion, we can suppress ISI and obtain a frequency diversity effect.
The receiver is simply implemented by adding a pair of Discrete Fourier Transform (DFT) and Inverse DFT (IDFT).
With small computational complexity, the advantage of the frequency diversity effect can compensate for the disadvantage caused by ISI.
By computer simulations, we evaluate the proposed method in comparison with the conventional one with respect to the frequency efficiency. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Orthogonal Frequency Division Multiplexing / Guard Interval / Frequency-Domain Equalization / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 336, WBS2013-39, pp. 31-36, Dec. 2013. |
Paper # |
WBS2013-39 |
Date of Issue |
2013-11-26 (WBS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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WBS2013-39 |
Conference Information |
Committee |
ITS WBS |
Conference Date |
2013-12-03 - 2013-12-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tokyo University of Science |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
ITS Communication, Poster Session, etc. |
Paper Information |
Registration To |
WBS |
Conference Code |
2013-12-ITS-WBS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Frequency-Domain Equalizer for OFDM systems without Guard Interval |
Sub Title (in English) |
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Keyword(1) |
Orthogonal Frequency Division Multiplexing |
Keyword(2) |
Guard Interval |
Keyword(3) |
Frequency-Domain Equalization |
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1st Author's Name |
Yuta Kasajima |
1st Author's Affiliation |
Utsunomiya University (Utsunomiya Univ.) |
2nd Author's Name |
Hiroyuki Hatano |
2nd Author's Affiliation |
Utsunomiya University (Utsunomiya Univ.) |
3rd Author's Name |
Masahiro Fujii |
3rd Author's Affiliation |
Utsunomiya University (Utsunomiya Univ.) |
4th Author's Name |
Yu Watanabe |
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Utsunomiya University (Utsunomiya Univ.) |
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Speaker |
Author-1 |
Date Time |
2013-12-03 13:00:00 |
Presentation Time |
150 minutes |
Registration for |
WBS |
Paper # |
WBS2013-39 |
Volume (vol) |
vol.113 |
Number (no) |
no.336 |
Page |
pp.31-36 |
#Pages |
6 |
Date of Issue |
2013-11-26 (WBS) |
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