| 電子情報通信学会 研究会発表申込システム 講演論文 詳細 |
技報閲覧サービス [ログイン] 技報アーカイブ |
| トップに戻る | 前のページに戻る | [Japanese] / [English] |
| 講演抄録／キーワード | ||
| 講演名 | 2019-11-05 09:00 ［招待講演］Study on performance improvement of 5G ultra-reliable and low latency communications ○Eiji Okamoto（NITech）  SR2019-74 |
|
| 抄録 | （和） | For applications and services of connected vehicles, the new use case of ultra-reliable and low-latency communications (URLLC) has been added in the fifth generation mobile communications system (5G), in addition to the conventional 4G use case of enhanced mobile broadband (eMBB). The typical requirements of URLLC are the reliability of 32-byte packet transmission is more than 99.999 %, and the maximum air latency is 1 ms. Furthermore, high frequencies not only in microwave band but also millimeter-wave band such as 28 GHz are used in 5G to realize a large-capacity transmission, including URLLC. However, according to the frequency increase, a cell coverage becomes small due to a large propagation loss, and the maximum Doppler frequency of fading becomes high, resulting in a severe transmission performance degradation. Therefore, to satisfy the various performance requirements such as the reliability, latency, and energy efficiency in 5G URLLC, applying additional technologies are indispensable. We have studied some schemes to tackle this problem and to improve the performance of URLLC. In particular, we consider exploiting a cooperative vehicle-to-vehicle transmission to improve an uplink vehicle-to-infrastructure (V2I) transmission from far vehicle, an adaptive beam tracking scheme at the vehicle side for uplink V2I transmission, and an open-loop hybrid automatic repeat request scheme for low-latency transmission. In this study, we introduce these schemes. |
| （英） | For applications and services of connected vehicles, the new use case of ultra-reliable and low-latency communications (URLLC) has been added in the fifth generation mobile communications system (5G), in addition to the conventional 4G use case of enhanced mobile broadband (eMBB). The typical requirements of URLLC are the reliability of 32-byte packet transmission is more than 99.999 %, and the maximum air latency is 1 ms. Furthermore, high frequencies not only in microwave band but also millimeter-wave band such as 28 GHz are used in 5G to realize a large-capacity transmission, including URLLC. However, according to the frequency increase, a cell coverage becomes small due to a large propagation loss, and the maximum Doppler frequency of fading becomes high, resulting in a severe transmission performance degradation. Therefore, to satisfy the various performance requirements such as the reliability, latency, and energy efficiency in 5G URLLC, applying additional technologies are indispensable. We have studied some schemes to tackle this problem and to improve the performance of URLLC. In particular, we consider exploiting a cooperative vehicle-to-vehicle transmission to improve an uplink vehicle-to-infrastructure (V2I) transmission from far vehicle, an adaptive beam tracking scheme at the vehicle side for uplink V2I transmission, and an open-loop hybrid automatic repeat request scheme for low-latency transmission. In this study, we introduce these schemes. | |
| キーワード | （和） | 5G / ultra-reliable and low-latency communications / uplink / cellular vehicle to everything / hybrid automatic repeat request / / / |
| （英） | 5G / ultra-reliable and low-latency communications / uplink / cellular vehicle to everything / hybrid automatic repeat request / / / | |
| 文献情報 | 信学技報, vol. 119, no. 262, SR2019-74, pp. 27-27, 2019年11月. | |
| 資料番号 | SR2019-74 | |
| 発行日 | 2019-10-28 (SR) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | SR2019-74 |
|
| 研究会情報 | |
| 研究会 | SR |
| 開催期間 | 2019-11-04 - 2019-11-06 |
| 開催地（和） | Rutgers University, NJ, USA |
| 開催地（英） | Rutgers University Inn & Conference Center, NJ, USA |
| テーマ（和） | SmartCom2019 |
| テーマ（英） | SmartCom2019 |
| 講演論文情報の詳細 | |
| 申込み研究会 | SR |
| 会議コード | 2019-11-SR |
| 本文の言語 | 英語 |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Study on performance improvement of 5G ultra-reliable and low latency communications |
| サブタイトル（英） | |
| キーワード(1)（和/英） | 5G / 5G |
| キーワード(2)（和/英） | ultra-reliable and low-latency communications / ultra-reliable and low-latency communications |
| キーワード(3)（和/英） | uplink / uplink |
| キーワード(4)（和/英） | cellular vehicle to everything / cellular vehicle to everything |
| キーワード(5)（和/英） | hybrid automatic repeat request / hybrid automatic repeat request |
| キーワード(6)（和/英） | / |
| キーワード(7)（和/英） | / |
| キーワード(8)（和/英） | / |
| 第1著者 氏名（和/英/ヨミ） | 岡本 英二 / Eiji Okamoto / オカモト エイジ |
| 第1著者 所属（和/英） | 名古屋工業大学 (略称： 名工大) Nagoya Institute of Technology (略称： NITech) |
| 講演者 | 第1著者 |
| 発表日時 | 2019-11-05 09:00:00 |
| 発表時間 | 30分 |
| 申込先研究会 | SR |
| 資料番号 | SR2019-74 |
| 巻番号（vol） | vol.119 |
| 号番号（no） | no.262 |
| ページ範囲 | p.27 |
| ページ数 | 1 |
| 発行日 | 2019-10-28 (SR) |
[研究会発表申込システムのトップページに戻る]