Paper Abstract and Keywords |
Presentation |
2008-03-06 11:00
Performance Comparison between Vector Coding and OFDM Daisuke Takeda, Masao Nakagawa (Keio Univ.) RCS2007-215 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Vector Coding is a kind of precoding scheme by using singular value decomposition of the channel matrix in the time domain. VC is also considered as a kind of CDM whose spreading codes are eigen-vectors of the channel matrix. Same as an eigen-mode transmission used in MIMO system, the interferece between transmission signals are avoided because the channel is orthogonalized. On the other hand, OFDM utilizes the frequency orthogonality and has already been used in practial wireless systems such as Wireless LAN.
In this report, the performances of both Vector Coding and OFDM are evaluated. Vector Coding requres precoding in the transmistter and will require certain complexity compared with OFDM. However, the performances of Vector Coding is better than those of OFDM at some conditions. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Vector Coding / OFDM / Eigen-vector / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 518, RCS2007-215, pp. 175-179, March 2008. |
Paper # |
RCS2007-215 |
Date of Issue |
2008-02-27 (RCS) |
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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RCS2007-215 |
Conference Information |
Committee |
RCS AN MoNA SR WBS |
Conference Date |
2008-03-05 - 2008-03-07 |
Place (in Japanese) |
(See Japanese page) |
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YRP |
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(See Japanese page) |
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Paper Information |
Registration To |
RCS |
Conference Code |
2008-03-RCS-AN-MoMuC-SR-WBS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Performance Comparison between Vector Coding and OFDM |
Sub Title (in English) |
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Vector Coding |
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OFDM |
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Eigen-vector |
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1st Author's Name |
Daisuke Takeda |
1st Author's Affiliation |
Keio University (Keio Univ.) |
2nd Author's Name |
Masao Nakagawa |
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Keio University (Keio Univ.) |
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Speaker |
Author-1 |
Date Time |
2008-03-06 11:00:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2007-215 |
Volume (vol) |
vol.107 |
Number (no) |
no.518 |
Page |
pp.175-179 |
#Pages |
5 |
Date of Issue |
2008-02-27 (RCS) |
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