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Paper Abstract and Keywords
Presentation 2025-07-10 13:40
Experimental Verification of High-Efficiency Compressed Intermediate Frequency over Fiber Transmission Using FPGA Implementation of Subspace Tracking Algorithm
Takatoshi Akamatsu, Junya Nishioka, Keita Mochizuki (Mitsubishi Electric) EMT2025-14 MW2025-27 OPE2025-17 EST2025-13 MWPTHz2025-27
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a novel method for efficiently accommodating MIMO signals received by multi-element antennas toward Beyond 5G systems. The method combines compression processing based on a subspace tracking algorithm with an Intermediate Frequency over Fiber transmission scheme. To evaluate the feasibility of high-speed processing, which is a key challenge for practical implementation of the proposed method, we implemented a subspace tracking algorithm called PAST on an FPGA. Through compression transmission and demodulation experiments using OFDM-MIMO received signals, we successfully demonstrated compressed transmission of 2×8 MIMO signals with 16QAM modulation over a 200 MHz bandwidth using the implemented FPGA.
Keyword (in Japanese) (See Japanese page) 
(in English) Beyond 5G / IFoF / MIMO / Subspace Tracking / FPGA / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 112, MWPTHz2025-27, pp. 33-36, July 2025.
Paper # MWPTHz2025-27 
Date of Issue 2025-07-03 (EMT, MW, OPE, EST, MWPTHz) 
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 EMT2025-14 MW2025-27 OPE2025-17 EST2025-13 MWPTHz2025-27

Conference Information
Committee EMT OPE EST MWPTHz MW IEE-EMT  
Conference Date 2025-07-10 - 2025-07-11 
Place (in Japanese) (See Japanese page) 
Place (in English) Okhotsk JA Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Workshop on Optical and Microwave technologies 
Paper Information
Registration To MWPTHz 
Conference Code 2025-07-EMT-OPE-EST-MWPTHz-MW-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Experimental Verification of High-Efficiency Compressed Intermediate Frequency over Fiber Transmission Using FPGA Implementation of Subspace Tracking Algorithm 
Sub Title (in English)  
Keyword(1) Beyond 5G  
Keyword(2) IFoF  
Keyword(3) MIMO  
Keyword(4) Subspace Tracking  
Keyword(5) FPGA  
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Keyword(7)  
Keyword(8)  
1st Author's Name Takatoshi Akamatsu  
1st Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
2nd Author's Name Junya Nishioka  
2nd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
3rd Author's Name Keita Mochizuki  
3rd Author's Affiliation Mitsubishi Electric Corporation (Mitsubishi Electric)
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Speaker Author-1 
Date Time 2025-07-10 13:40:00 
Presentation Time 25 minutes 
Registration for MWPTHz 
Paper # EMT2025-14, MW2025-27, OPE2025-17, EST2025-13, MWPTHz2025-27 
Volume (vol) vol.125 
Number (no) no.108(EMT), no.109(MW), no.110(OPE), no.111(EST), no.112(MWPTHz) 
Page pp.33-36 
#Pages 4 
Date of Issue 2025-07-03 (EMT, MW, OPE, EST, MWPTHz) 

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