Paper Abstract and Keywords |
Presentation |
2021-04-22 15:35
Pilotless Multipath Equalization for Chirp Spread Non-coherent FSK Yuta Hori, Masatsugu Higashinaka, Hiroshi Aruga (MELCO) RCS2021-8 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In low power wide area (LPWA) systems such as LoRaWAN (Long Range Wide Area Network), a combination of frequency shift keying (FSK) and direct sequence spread spectrum (DS-SS) with chirp sequence is beneficial due to its high power efficiency and high receiver sensitivity. In general, non-coherent detection is applied to FSK due to its simplicity of implementation. However, employing non-coherent FSK in which the channel estimation and the channel equalization are not performed has a disadvantage that it cannot achieve diversity gain provided by the multipath channel. In addition, the combination of the chirp DS-SS and the non-coherent FSK incurs error floor over the multipath channel with a specific delay profile. In this paper, we propose a new transmission and detection method for the chirp DS-SS with the non-coherent FSK that is able to obtain the multipath diversity gain. Simulation results demonstrate that our proposed scheme achieves higher diversity gain than the conventional non-coherent tranceiver over the multipath channels. Moreover, we show that the proposed scheme improves error rate performance over
the multipath channel with the specific delay profile where the conventional scheme suffers from the error floor. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Frequency Shift Keying / Non-coherent Detection / Chirp Sequence / Direct-sequence Spread Spectrum / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 7, RCS2021-8, pp. 30-35, April 2021. |
Paper # |
RCS2021-8 |
Date of Issue |
2021-04-15 (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) |
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RCS2021-8 |
Conference Information |
Committee |
RCS |
Conference Date |
2021-04-22 - 2021-04-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, etc. |
Paper Information |
Registration To |
RCS |
Conference Code |
2021-04-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Pilotless Multipath Equalization for Chirp Spread Non-coherent FSK |
Sub Title (in English) |
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Keyword(1) |
Frequency Shift Keying |
Keyword(2) |
Non-coherent Detection |
Keyword(3) |
Chirp Sequence |
Keyword(4) |
Direct-sequence Spread Spectrum |
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1st Author's Name |
Yuta Hori |
1st Author's Affiliation |
Mitsubishi Electric (MELCO) |
2nd Author's Name |
Masatsugu Higashinaka |
2nd Author's Affiliation |
Mitsubishi Electric (MELCO) |
3rd Author's Name |
Hiroshi Aruga |
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Mitsubishi Electric (MELCO) |
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Speaker |
Author-1 |
Date Time |
2021-04-22 15:35:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2021-8 |
Volume (vol) |
vol.121 |
Number (no) |
no.7 |
Page |
pp.30-35 |
#Pages |
6 |
Date of Issue |
2021-04-15 (RCS) |
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