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| Presentation | 2010-04-27 15:20 A Study on the User Allocation in IFDMA Yuichi Kazama, Koichi Adachi, Tomoaki Ohtsuki, Masao Nakagawa (Keio Univ.)  RCS2010-16 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Single-carrier frequency division multiple access (SC-FDMA) will be adopted in the uplink of the future wireless communication system. Interleaved frequency division multiple access (IFDMA), which is a special case of SC-FDMA, can obtain frequency diversity gain by allocating the frequency component of the transmitted signal to the wide spread frequency spectrum that are equi-distantly spaced. However, inter-chip interference (ICI) incurred by multipaths environment degrades the transmission performance of IFDMA. In the multi-user environment, where a number of users communicate at the same time, multi-user diversity can be obtained by allocating user’s spectrum according to each user’s channel gain. However, it has not been clarified that the impact of user allocation on the performance of IFDMA by taking into account of user fairness, the frequency diversity, and the multi-user diversity and ICI. We have previously evaluated the average bit error rate (BER) performance of IFDMA in the multi-user environment by taking into account of frequency diversity, multi-user diversity and ICI when Q and L are changed and then average BER performance of IFDMA is compared to that of OFDM. In this report, we focus on the multi-user diversity gain that is greatly affected by the user allocation method. The impact of user allocation on the channel capacity is evaluated by computer simulation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | IFDMA / Frequency diversity / Multi-user diversity / ICI / User allocation / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 19, RCS2010-16, pp. 91-96, April 2010. | |
| Paper # | RCS2010-16 | |
| Date of Issue | 2010-04-19 (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 | RCS2010-16 |
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| Conference Information | |
| Committee | IN RCS |
| Conference Date | 2010-04-26 - 2010-04-27 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Internet, Multi-hop network, Mesh network, Network coding, Cross layer technique, Wireless communication, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2010-04-IN-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on the User Allocation in IFDMA |
| Sub Title (in English) | |
| Keyword(1) | IFDMA |
| Keyword(2) | Frequency diversity |
| Keyword(3) | Multi-user diversity |
| Keyword(4) | ICI |
| Keyword(5) | User allocation |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuichi Kazama |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Koichi Adachi |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
| 3rd Author's Name | Tomoaki Ohtsuki |
| 3rd Author's Affiliation | Keio University (Keio Univ.) |
| 4th Author's Name | Masao Nakagawa |
| 4th Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2010-04-27 15:20:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2010-16 |
| Volume (vol) | vol.110 |
| Number (no) | no.19 |
| Page | pp.91-96 |
| #Pages | 6 |
| Date of Issue | 2010-04-19 (RCS) |
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