Paper Abstract and Keywords |
Presentation |
2011-03-04 10:50
Apply MC-CDMA System to Mobile WiMAX System Ryo Nishimura, Takeshi Hashimoto (Univ. of Electro-Comm.) CAS2010-147 SIP2010-163 CS2010-117 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In WiMAX system, one of the 3.9 generation mobile communications systems, the OFDMA technology, which is known to have high bandwidth efficiency and be robust to multipath propagation, is employed for both uplink and downlink transmission. However, OFDMA suffers severe frequency selectivity in mobile environment.
Source allocation has been proposed to overcome this problem. The ideal source allocation, however, is usually too complex to be practical since it requires the optimal combined adaption of frequency, time, and power. In this paper, we propose
to employ a MC-CDMA scheme to Mobile WiMAX system to suppress the channel frequency diversity.
Simulation results show that our system outperforms OFDMA system under low-load condition but performs worse than OFDMA system when highly-loaded due to multiuser interference.
The performance of the system is supposed to be improved with MUI suppression. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Mobile WiMAX / OFDMA / MC-CDMA / Zadoff-Chu code / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 441, CS2010-117, pp. 263-268, March 2011. |
Paper # |
CS2010-117 |
Date of Issue |
2011-02-24 (CAS, SIP, CS) |
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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CAS2010-147 SIP2010-163 CS2010-117 |
Conference Information |
Committee |
CS SIP CAS |
Conference Date |
2011-03-03 - 2011-03-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Ohhamanobumoto memorial hall (Ishigaki)( |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Network Processor, Signal Processing for Communications, Wireless LAN/PAN, etc. |
Paper Information |
Registration To |
CS |
Conference Code |
2011-03-CS-SIP-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Apply MC-CDMA System to Mobile WiMAX System |
Sub Title (in English) |
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Keyword(1) |
Mobile WiMAX |
Keyword(2) |
OFDMA |
Keyword(3) |
MC-CDMA |
Keyword(4) |
Zadoff-Chu code |
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1st Author's Name |
Ryo Nishimura |
1st Author's Affiliation |
The University of Electro-Communications (Univ. of Electro-Comm.) |
2nd Author's Name |
Takeshi Hashimoto |
2nd Author's Affiliation |
The University of Electro-Communications (Univ. of Electro-Comm.) |
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Speaker |
Author-1 |
Date Time |
2011-03-04 10:50:00 |
Presentation Time |
20 minutes |
Registration for |
CS |
Paper # |
CAS2010-147, SIP2010-163, CS2010-117 |
Volume (vol) |
vol.110 |
Number (no) |
no.439(CAS), no.440(SIP), no.441(CS) |
Page |
pp.263-268 |
#Pages |
6 |
Date of Issue |
2011-02-24 (CAS, SIP, CS) |
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