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Paper Abstract and Keywords
Presentation 2011-03-04 14:00
MIMO-OFDM IDMA Scheme Employing Interleave-Division Multiplexing and Adaptive Resource Allocation
Jun Shikida, Satoshi Suyama, Hiroshi Suzuki, Kazuhiko Fukawa (Tokyo Inst. of Tech.) RCS2010-310
Abstract (in Japanese) (See Japanese page) 
(in English) This report proposes a MIMO-OFDM interleave-division multiple access (IDMA) scheme employing both interleave-division multiplexing (IDM) and adaptive resource allocation for uplink mobile communication systems. OFDM-IDMA, which is a combination of OFDM and IDMA, has been investigated because it is expected to improve spectrum efficiency. Since all subcarriers are allocated to all users for conventional OFDM-IDMA systems, subcarriers incurring low channel gains degrade the transmission performance. To compensate for such degradation, this report applies both IDM and adaptive resource allocation to OFDM-IDMA. The proposed scheme divides all subcarriers into multiple resource blocks (RBs), and then IDM combines multiple streams which are permuted by individual interleavers and transmits the combined streams using one RB. Owing to IDM, the scheme can decrease the number of assigned RBs while maintaining the transmission rate for each user. Moreover, the adaptive resource allocation assigns RBs to users so that it can improve SINR for each user and can achieve high throughput. Specifically, it first allocates RBs based on SNR for each user, while not considering interference from other users. After that, it repeats an SINR-based allocation that takes into account other users' RB assignment. Computer simulations evaluate the throughput performance of the proposed scheme when a repetition code is used as a low-rate channel code, and demonstrate that the proposed scheme achieves the same throughput performance as OFDMA in the case of SISO, and outperforms OFDMA in the case of 4 x 4 MIMO.
Keyword (in Japanese) (See Japanese page) 
(in English) mobile communication / multiple access / IDMA / MIMO-OFDM IDMA / adaptive resource allocation / IDM / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 433, RCS2010-310, pp. 361-366, March 2011.
Paper # RCS2010-310 
Date of Issue 2011-02-23 (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)
Download PDF RCS2010-310

Conference Information
Committee RCS MoNA SR  
Conference Date 2011-03-02 - 2011-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2011-03-RCS-MoMuC-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) MIMO-OFDM IDMA Scheme Employing Interleave-Division Multiplexing and Adaptive Resource Allocation 
Sub Title (in English)  
Keyword(1) mobile communication  
Keyword(2) multiple access  
Keyword(3) IDMA  
Keyword(4) MIMO-OFDM IDMA  
Keyword(5) adaptive resource allocation  
Keyword(6) IDM  
Keyword(7)  
Keyword(8)  
1st Author's Name Jun Shikida  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Satoshi Suyama  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
3rd Author's Name Hiroshi Suzuki  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
4th Author's Name Kazuhiko Fukawa  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2011-03-04 14:00:00 
Presentation Time 20 minutes 
Registration for RCS 
Paper # RCS2010-310 
Volume (vol) vol.110 
Number (no) no.433 
Page pp.361-366 
#Pages 6 
Date of Issue 2011-02-23 (RCS) 

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