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Paper Abstract and Keywords
Presentation 2009-05-22 16:00
Performance Evaluation of A Spectrum-Overlapped Resource Management using Single Carrier under Multi-User Environment
Hiroki Takahashi, Kazunari Yokomakura, Osamu Nakamura, Jungo Goto, Yasuhiro Hamaguchi (Sharp Co.) RCS2009-24
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, based on the single carrier transmission under the multi-user environment of uplink, a spectrum-over-lapped resource management (SORM) with turbo equalizer using a dynamic spectrum control (DSC) is generalized. Then the improvement of a further band utilization efficiency is evaluated. SORM is a technique that allows each user's spectrum to overlap it mutually and determines the frequency assignment only according to the path gain. By adopting turbo equalizer as the signal detection scheme for multiuser detection (MUD), it removes not only inter-symbol interference (ISI) but also inter-user interference (IUI). The signal of each user can be completely separated as a result. In this paper, we evaluated the characteristics of SORM under the multi user environment when the transmission rate of the entire system band is made constant. In addition, the possibility of achieving the broadband transmission more than the system band by band spreading of each user is evaluated. The simulation result shows that SORM allows users to obtain maximum frequency selection diversity. And, when each user's band is enhanced, it is shown to be able to increase the band utilization efficiency by over 30% with same frame error rate with past FDMA-type of SC based DSC.
Keyword (in Japanese) (See Japanese page) 
(in English) SORM / spectrum-overlapped / turbo equalization / multi-user / single carrier / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 38, RCS2009-24, pp. 139-144, May 2009.
Paper # RCS2009-24 
Date of Issue 2009-05-14 (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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2009-24

Conference Information
Committee RCS IN  
Conference Date 2009-05-21 - 2009-05-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) multihop, mesh network, network coding, wireless communication, etc. 
Paper Information
Registration To RCS 
Conference Code 2009-05-RCS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance Evaluation of A Spectrum-Overlapped Resource Management using Single Carrier under Multi-User Environment 
Sub Title (in English)  
Keyword(1) SORM  
Keyword(2) spectrum-overlapped  
Keyword(3) turbo equalization  
Keyword(4) multi-user  
Keyword(5) single carrier  
1st Author's Name Hiroki Takahashi  
1st Author's Affiliation Sharp Corporation (Sharp Co.)
2nd Author's Name Kazunari Yokomakura  
2nd Author's Affiliation Sharp Corporation (Sharp Co.)
3rd Author's Name Osamu Nakamura  
3rd Author's Affiliation Sharp Corporation (Sharp Co.)
4th Author's Name Jungo Goto  
4th Author's Affiliation Sharp Corporation (Sharp Co.)
5th Author's Name Yasuhiro Hamaguchi  
5th Author's Affiliation Sharp Corporation (Sharp Co.)
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Date Time 2009-05-22 16:00:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2009-24 
Volume (vol) IEICE-109 
Number (no) no.38 
Page pp.139-144 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2009-05-14 

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