Paper Abstract and Keywords |
Presentation |
2020-12-17 11:00
[Encouragement Talk]
Massive Grant-Free Non-Orthogonal Multiple Access Utilizing Time and Frequency Spreading Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications) RCS2020-134 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
To accommodate a large number of users efficiently, grant-free non-orthogonal multiple access (GF-NOMA) has gained much attention. Conventional schemes utilize the non-orthogonal sequences spread over the time domain and perform active user detection (AUD) and channel estimation (CE) via sparse recovery techniques exploiting multiple measurements. However, these approaches require a sufficiently long sequence to accommodate massive users efficiently, leading to difficulties in meeting the latency requirements. In this paper, we propose a new GF-NOMA making full use of time and frequency domains and its parameter design based on phase transition. We demonstrate that our proposed GF-NOMA outperforms the conventional one under the low-latency requirement via computer simulations. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Grant-free non-orthogonal multiple access / compressed sensing / phase transition / approximate message passing / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 120, no. 298, RCS2020-134, pp. 1-6, Dec. 2020. |
Paper # |
RCS2020-134 |
Date of Issue |
2020-12-10 (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 |
RCS2020-134 |
Conference Information |
Committee |
NS RCS |
Conference Date |
2020-12-17 - 2020-12-18 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Multi-hop/Relay/Cooperation, Disaster-resistant wireless network, Sensor/Mesh network, Ad-hoc network, D2D/M2M, Wireless network coding, Handover/AP switching/Connected cell control/Load balancing among base stations/Mobile network dynamic reconfiguration, QoS/QoE assurance, Wireless VoIP, IoT, Edge computing, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2020-12-NS-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Massive Grant-Free Non-Orthogonal Multiple Access Utilizing Time and Frequency Spreading |
Sub Title (in English) |
|
Keyword(1) |
Grant-free non-orthogonal multiple access |
Keyword(2) |
compressed sensing |
Keyword(3) |
phase transition |
Keyword(4) |
approximate message passing |
Keyword(5) |
|
Keyword(6) |
|
Keyword(7) |
|
Keyword(8) |
|
1st Author's Name |
Takanori Hara |
1st Author's Affiliation |
The University of Electro-Communications (The Univ. of Electro-Communications) |
2nd Author's Name |
Koji Ishibashi |
2nd Author's Affiliation |
The University of Electro-Communications (The Univ. of Electro-Communications) |
3rd Author's Name |
|
3rd Author's Affiliation |
() |
4th Author's Name |
|
4th Author's Affiliation |
() |
5th Author's Name |
|
5th Author's Affiliation |
() |
6th Author's Name |
|
6th Author's Affiliation |
() |
7th Author's Name |
|
7th Author's Affiliation |
() |
8th Author's Name |
|
8th Author's Affiliation |
() |
9th Author's Name |
|
9th Author's Affiliation |
() |
10th Author's Name |
|
10th Author's Affiliation |
() |
11th Author's Name |
|
11th Author's Affiliation |
() |
12th Author's Name |
|
12th Author's Affiliation |
() |
13th Author's Name |
|
13th Author's Affiliation |
() |
14th Author's Name |
|
14th Author's Affiliation |
() |
15th Author's Name |
|
15th Author's Affiliation |
() |
16th Author's Name |
|
16th Author's Affiliation |
() |
17th Author's Name |
|
17th Author's Affiliation |
() |
18th Author's Name |
|
18th Author's Affiliation |
() |
19th Author's Name |
|
19th Author's Affiliation |
() |
20th Author's Name |
|
20th Author's Affiliation |
() |
Speaker |
Author-1 |
Date Time |
2020-12-17 11:00:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2020-134 |
Volume (vol) |
vol.120 |
Number (no) |
no.298 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2020-12-10 (RCS) |
|