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Paper Abstract and Keywords
Presentation 2007-08-24 16:00
Carrier Frequency Offset Compensation Combined with Parallel Interference Cancellation in Uplink MIMO-OFDMA
Masaki Ogata, Takahiko Saba (Chiba Inst. of Tech.) RCS2007-73
Abstract (in Japanese) (See Japanese page) 
(in English) In the uplink of multiple input multiple output orthogonal frequency division multiple access (MIMO-OFDMA) systems, the amounts of carrier frequency offsets (CFOs) are different in each user because every user uses their own local oscillators. CFO spoils the orthogonality among subcarriers and causes notable degradation in demodulation performance. Thus, CFO must be compensated for in MIMO-OFDMA systems. However, since the amounts of CFOs are different in each user, CFO compensation schemes for single user, such as OFDM systems, cannot be used directly. In this paper, we propose a CFO compensation scheme which uses the principle of parallel interference cancellation (PIC). To compensate for CFO individually, the superposed received signals must be separated into each user's component before CFO compensation. The proposed receiver can achieve this by using the principle of PIC. Simulation results can show the proposed system effectively compensates for CFO, especially in a high bit energy to noise power spectral density ratio (Eb/N0) region.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO-OFDMA / Carrier Frequency Offset / Parallel Interference Cancellation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 192, RCS2007-73, pp. 117-122, Aug. 2007.
Paper # RCS2007-73 
Date of Issue 2007-08-16 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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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Conference Information
Committee RCS AN  
Conference Date 2007-08-23 - 2007-08-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-08-RCS-AN 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Carrier Frequency Offset Compensation Combined with Parallel Interference Cancellation in Uplink MIMO-OFDMA 
Sub Title (in English)  
Keyword(1) MIMO-OFDMA  
Keyword(2) Carrier Frequency Offset  
Keyword(3) Parallel Interference Cancellation  
1st Author's Name Masaki Ogata  
1st Author's Affiliation Chiba Institute of Technology (Chiba Inst. of Tech.)
2nd Author's Name Takahiko Saba  
2nd Author's Affiliation Chiba Institute of Technology (Chiba Inst. of Tech.)
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Date Time 2007-08-24 16:00:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2007-73 
Volume (vol) IEICE-107 
Number (no) no.192 
Page pp.117-122 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2007-08-16 

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