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| Presentation | 2013-01-31 14:45 Investigation on Interference Rejection Combining Receiver in Heterogeneous Networks Employing Inter-cell Interference Coordination for LTE-Advanced Downlink Yusuke Ohwatari, Akihito Morimoto, Nobuhiko Miki, Yukihiko Okumura (NTT DOCOMO)  SIP2012-96 RCS2012-253 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In LTE-Advanced, heterogeneous networks where low power nodes such as picocells are overlaid onto macrocells were extensively investigated on further improvement in the system throughput per unit area. In heterogeneous networks, to achieve an offloading gain from macrocells to picocells, cell range expansion (CRE) is applied. Additionally, inter-cell interference coordination (ICIC) is applied to reduce the severe inter-cell interference transmitted from the macrocells to the sets of user equipment (UEs) connected to picocells. In such cases, since the interference statistics are completely different from traditional well-planned macrocell deployments and heterogeneous networks only employing CRE, it is important to investigate the interference rejection combining (IRC) receiver that effectively improves the cell-edge user throughput by suppressing interference from the surrounding cells. Therefore, this paper investigates the IRC receiver in heterogeneous networks employing CRE and ICIC. Simulation results show that the effect of the IRC receiver compared to the conventional minimum mean square error (MMSE) receiver becomes small due to a reduction in the severe inter-cell interference, which is the effect of ICIC. However, when using the optimum CRE and ICIC parameters in heterogeneous network, we clarify that a cell-edge user throughput gain from the IRC receiver exceeding 10% is achieved compared to the MMSE receiver and an average user throughput gain from the IRC receiver is also achieved. Furthermore, we show that the same parameters specified for CRE and ICIC can be set regardless of the IRC and conventional MMSE receivers. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LTE-Advanced / interference rejection combining / inter-cell interference / heterogeneous networks / inter-cell interference coordination / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 424, RCS2012-253, pp. 91-96, Jan. 2013. | |
| Paper # | RCS2012-253 | |
| Date of Issue | 2013-01-24 (SIP, 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 | SIP2012-96 RCS2012-253 |
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| Conference Information | |
| Committee | SIP RCS |
| Conference Date | 2013-01-31 - 2013-02-01 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Viewport-Kure-Hotel (Kure) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2013-01-SIP-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Investigation on Interference Rejection Combining Receiver in Heterogeneous Networks Employing Inter-cell Interference Coordination for LTE-Advanced Downlink |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | interference rejection combining |
| Keyword(3) | inter-cell interference |
| Keyword(4) | heterogeneous networks |
| Keyword(5) | inter-cell interference coordination |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yusuke Ohwatari |
| 1st Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 2nd Author's Name | Akihito Morimoto |
| 2nd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 3rd Author's Name | Nobuhiko Miki |
| 3rd Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
| 4th Author's Name | Yukihiko Okumura |
| 4th Author's Affiliation | NTT DOCOMO, INC. (NTT DOCOMO) |
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| Speaker | Author-1 |
| Date Time | 2013-01-31 14:45:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | SIP2012-96, RCS2012-253 |
| Volume (vol) | vol.112 |
| Number (no) | no.423(SIP), no.424(RCS) |
| Page | pp.91-96 |
| #Pages | 6 |
| Date of Issue | 2013-01-24 (SIP, RCS) |
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