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| Presentation | 2019-06-21 11:10 Interference Control of LTE-LAA using Q-learning with HARQ Kenshiro Wada, Tomoaki Ohtsuki (Keio Univ.)  RCS2019-91 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | As a means of high-speed and large-capacity communication, broadbandization of LTE communication is considered. However, in addition to the currently used license band, in order to use the unlicensed bandwidth, interference control with Wi-Fi that also uses the unlicensed bandwidth is required. A technique called LBT (Listen Before Talk) is considered as a technique of LTE-LAA (LTE-Licensed Assisted Access) interference control. However, since the channel occupation time (TXOP) of LTE-LAA is larger than that of Wi-Fi, there is a problem that Wi-Fi channel access is hindered. As a solution to this problem, it is considered to increase the chances of channel access to Wi-Fi by establishing a waiting time of $T_{mute}$ to reduce TXOP of LTE-LAA and postpone transmission. In this report we propose to select this TXOP and $T_{mute}$ using Q-learning. In the proposed method, the number of ACKs and that of NACKs in HARQ are used as rewards. The base station (BS) retransmits according to the number of ACKs / NACKs. In the reward, learning values of TXOP, $T_{mute}$ of the LTE-LAA BS can be obtained so as to increase the ACK or NACK by using the value weighted to the number of ACKs and that of NACKs, respectively. When it is learned to increase the number of ACKs, the throughput of LTE-LAA becomes high, while that of Wi-Fi becomes low, and when it is learned to increase the number of NACKs, the throughput of LTE-LAA becomes low and that of Wi-Fi becomes high. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | / / / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 90, RCS2019-91, pp. 315-320, June 2019. | |
| Paper # | RCS2019-91 | |
| Date of Issue | 2019-06-12 (RCS) | |
| ISSN | 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 | RCS2019-91 |
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| Conference Information | |
| Committee | RCS |
| Conference Date | 2019-06-19 - 2019-06-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Miyakojima Hirara Port Terminal Building |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2019-06-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Interference Control of LTE-LAA using Q-learning with HARQ |
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| 1st Author's Name | Kenshiro Wada |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Tomoaki Ohtsuki |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-06-21 11:10:00 |
| Presentation Time | 10 minutes |
| Registration for | RCS |
| Paper # | RCS2019-91 |
| Volume (vol) | vol.119 |
| Number (no) | no.90 |
| Page | pp.315-320 |
| #Pages | 6 |
| Date of Issue | 2019-06-12 (RCS) |
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