Paper Abstract and Keywords |
Presentation |
2014-01-23 08:55
A Study on Downlink Inter-Cell Interference Cancellation from Macro-Cell to Small-Cell Suitable for Heterogeneous Networks Employing Cell Range Expansion Manabu Mikami, Masayuki Miyashita, Teruya Fujii (Softbank Mobile) SIP2013-85 RCS2013-255 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recently, data traffic is explosively increasing in cellular mobile communication system due to the prevalence of smart phones. A heterogeneous network overlaid with small-cells (HetNet), in which small-cell base stations (BSs) with a low transmission power are placed at the hot spot area of a macro-cell base station with a high transmission power, has been receiving attention in order to deal with the increasing traffic. For HetNet, Cell Range Expansion (CRE), in which a bias value is used for the reference signal received power (RSRP) from small-cell BSs, has been investigated as a promising approach to offload the traffic into the small-cell from the macro-cell. However, User Equipments (UEs), located in the small-cell area expanded by CRE, suffers large inter-cell interference (ICI) from the macro-cell BSs for the case of co-channel HetNet in which the same carrier frequency is used between macro-cells and small-cells. Hence, it is required for co-channel HetNet to mitigate ICI. In order to improve the downlink user throughput characteristics for co-channel HetNet employing large CRE bias value, this report investigates a successive interference cancellation (SIC) technique of codeword level SIC. The codeword level SIC realizes a large ICI mitigation effect with the use of the channel-decoding result of interference signals. Simulation results confirm that small-cell UEs equipped with codeword level SIC effectively suppresses the ICI from the macro-cell BSs. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
heterogeneous network / inter-cell interference / successive interference cancellation / channel docoding / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 386, RCS2013-255, pp. 1-6, Jan. 2014. |
Paper # |
RCS2013-255 |
Date of Issue |
2014-01-16 (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) |
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SIP2013-85 RCS2013-255 |
Conference Information |
Committee |
RCS SIP |
Conference Date |
2014-01-23 - 2014-01-24 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kyushu Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Signal Processing for Wireless Systems, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2014-01-RCS-SIP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Downlink Inter-Cell Interference Cancellation from Macro-Cell to Small-Cell Suitable for Heterogeneous Networks Employing Cell Range Expansion |
Sub Title (in English) |
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heterogeneous network |
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inter-cell interference |
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successive interference cancellation |
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channel docoding |
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1st Author's Name |
Manabu Mikami |
1st Author's Affiliation |
Softbank Mobile Corp. (Softbank Mobile) |
2nd Author's Name |
Masayuki Miyashita |
2nd Author's Affiliation |
Softbank Mobile Corp. (Softbank Mobile) |
3rd Author's Name |
Teruya Fujii |
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Softbank Mobile Corp. (Softbank Mobile) |
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Speaker |
Author-1 |
Date Time |
2014-01-23 08:55:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
SIP2013-85, RCS2013-255 |
Volume (vol) |
vol.113 |
Number (no) |
no.385(SIP), no.386(RCS) |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2014-01-16 (SIP, RCS) |
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