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Paper Abstract and Keywords
Presentation 2019-01-18 11:15
Proposal of Intermodulation Distortion Suppression Method for Wideband Signal Transmission Using Pre-Distortion in RoF
Hiroaki Yoshikawa (NAIST), Yuya Kaneko (NIT, Numazu College), Takeshi Higashino, Minoru Okada (NAIST) PN2018-58 EMT2018-92 OPE2018-167 LQE2018-177 EST2018-105 MWP2018-76
Abstract (in Japanese) (See Japanese page) 
(in English) Radio base station of the LTE adopts a C-RAN (Centralized-Radio Access Network) configuration. Plural signal processing units (BBU: Base Band Unit) are aggregated in one place, only the radio transmission / reception function unit (RRH: Remote Radio Head) is installed close to the antenna and they are connected by optical fiber link. The CPRI interface is employed as the mobile Fronthaul for connecting BBU and RRH 10 times or more bandwidth compared to the radio frequency bandwidth is requires in optical fiber link due to the number of quantization bits and oversampling. Reduction of the transmission speed in MFH are considered by dividing a part of signal processing functions into RRH, but the device configuration in the RRH side becomes complicated. Therefore, the use of analog RoF (Radio over Fiber) is considered suitable because its latency is low. However, intermodulation distortion(IMD) is one of main constraint in analog RoF. This paper proposes a method to suppress intermodulation distortion based on pre-distortion when building broadband OFDM signal. We compare the characteristics of the proposal and conventional using computer simulation and show its effectiveness.
Keyword (in Japanese) (See Japanese page) 
(in English) Mobile Fronthaul / Analog-RoF / Intermodulation distortion / pre-distortion / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 401, MWP2018-76, pp. 155-160, Jan. 2019.
Paper # MWP2018-76 
Date of Issue 2019-01-10 (PN, EMT, OPE, LQE, EST, MWP) 
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)
Download PDF PN2018-58 EMT2018-92 OPE2018-167 LQE2018-177 EST2018-105 MWP2018-76

Conference Information
Committee PN EMT OPE EST MWP LQE IEE-EMT  
Conference Date 2019-01-17 - 2019-01-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka University Nakanoshima Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To MWP 
Conference Code 2019-01-PN-EMT-OPE-EST-MWP-LQE-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal of Intermodulation Distortion Suppression Method for Wideband Signal Transmission Using Pre-Distortion in RoF 
Sub Title (in English)  
Keyword(1) Mobile Fronthaul  
Keyword(2) Analog-RoF  
Keyword(3) Intermodulation distortion  
Keyword(4) pre-distortion  
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1st Author's Name Hiroaki Yoshikawa  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Yuya Kaneko  
2nd Author's Affiliation National Institute of Technology, Numazu College (NIT, Numazu College)
3rd Author's Name Takeshi Higashino  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Minoru Okada  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker Author-1 
Date Time 2019-01-18 11:15:00 
Presentation Time 25 minutes 
Registration for MWP 
Paper # PN2018-58, EMT2018-92, OPE2018-167, LQE2018-177, EST2018-105, MWP2018-76 
Volume (vol) vol.118 
Number (no) no.396(PN), no.397(EMT), no.398(OPE), no.399(LQE), no.400(EST), no.401(MWP) 
Page pp.155-160 
#Pages 6 
Date of Issue 2019-01-10 (PN, EMT, OPE, LQE, EST, MWP) 

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