Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2010-06-10 13:00
Acoustic OFDM System Applying Sub-Carrier Power Control and DCT
Yoshinobu Kajikawa, Tsuyoshi Kobayashi (Kansai Univ.) SIS2010-5
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a novel method to embed information data on DCT (Discrete Cosine Transform) domain and control transmission power of each sub-carrier using frequency masking for acoustic OFDM (Orthogonal Frequency Division Multiplex) in order to improve the sound quality and the transmission characteristic. In the acoustic OFDM, information data is placed on the phase of each sub-carrier, so that the sound quality deteriorates as the transmission quantity increases. Moreover, sub-carriers with low electric power deteriorate the whole transmission characteristic due to additive noise because the frequency spectrum of audio signal is not flat. We therefore propose an embedding method using DCT for the deterioration of the transmission characteristic and a power control method using frequency masking for the deterioration of the sound quality. Moreover, we demonstrate that the combination of the proposed methods can simultaneously realize an increased transmission rate and an improved sound quality through some simulation results and subjective tests.
Keyword (in Japanese) (See Japanese page) 
(in English) acoustic communication / OFDM / DCT / frequency masking / power control / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 74, SIS2010-5, pp. 25-30, June 2010.
Paper # SIS2010-5 
Date of Issue 2010-06-03 (SIS) 
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)
Download PDF SIS2010-5

Conference Information
Committee SIS  
Conference Date 2010-06-10 - 2010-06-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Abashiri Public Auditorium 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SIS 
Conference Code 2010-06-SIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Acoustic OFDM System Applying Sub-Carrier Power Control and DCT 
Sub Title (in English)  
Keyword(1) acoustic communication  
Keyword(2) OFDM  
Keyword(3) DCT  
Keyword(4) frequency masking  
Keyword(5) power control  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yoshinobu Kajikawa  
1st Author's Affiliation Kansai University (Kansai Univ.)
2nd Author's Name Tsuyoshi Kobayashi  
2nd Author's Affiliation Kansai University (Kansai Univ.)
3rd Author's Name  
3rd Author's Affiliation ()
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2010-06-10 13:00:00 
Presentation Time 25 minutes 
Registration for SIS 
Paper # SIS2010-5 
Volume (vol) vol.110 
Number (no) no.74 
Page pp.25-30 
#Pages 6 
Date of Issue 2010-06-03 (SIS) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan