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Paper Abstract and Keywords
Presentation 2017-05-25 13:25
Feature detection scheme using Cyclic Prefix (CP) in OFDM signal -- Interference monitoring between satellite and cellular systems in millimeter band (mutual interference) --
Kanshiro Kashiki, Tomoki Sada (KDDI Research), Akihide Nagamine, Fumio Watanabe (Tokyo Inst. of Tech.)
Abstract (in Japanese) (See Japanese page) 
(in English) In the fifth generation of cellular system, use of 28 GHz band is discussed as new radio frequency assignment. Since the band is also allocated to the satellite service which is now being operated, their mutual interferences will be an important study issue. In the report, we deal with the mutual interference between satellite system and cellular system. Interference to the cellular base station from the satellite user earth station is major issue together with that in the satellite uplink from the cellular system. Considering the communication specifications of both systems, it is thought that the interferences will not be necessarily harmful. On the other hand, if it is required that even small interference is monitored, an interference measuring scheme with high sensitivity is needed. The authors have been engaged in the feature detection scheme using frequency multiplying function and also using Cyclic Prefix (CP) in the OFDM signal. Herein, such schemes are applied to the estimation method of the power ratio of the satellite signal to cellular signal. The satellite system model under discussion is mobile satellite service, which will be commercialized in near future. The specifications of the cellular system is supposed on the basis of the presently operating LTE system, which is named PoC (Proof of Concept). From the computer simulation results, it is concluded that the power ratio of 20 dB can be estimated with high accuracy, in such supposed system models. Furthermore, in the feature detection of cellular signal, it is clarified that the satellite signal can be treated like as input thermal noise, where the satellite signal affects the detection performance as interfering source.
Keyword (in Japanese) (See Japanese page) 
(in English) feature detection / Cyclic Prefix / millimeter band / interference monitoring / satellite and cellular system / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 52, SAT2017-2, pp. 7-12, May 2017.
Paper # SAT2017-2 
Date of Issue 2017-05-18 (SAT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee WBS SAT  
Conference Date 2017-05-25 - 2017-05-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Utsunomiya Univ. Yoto Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Coding, Modulation, Demodulation, Signal Processing Technique, etc. 
Paper Information
Registration To SAT 
Conference Code 2017-05-WBS-SAT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Feature detection scheme using Cyclic Prefix (CP) in OFDM signal 
Sub Title (in English) Interference monitoring between satellite and cellular systems in millimeter band (mutual interference) 
Keyword(1) feature detection  
Keyword(2) Cyclic Prefix  
Keyword(3) millimeter band  
Keyword(4) interference monitoring  
Keyword(5) satellite and cellular system  
1st Author's Name Kanshiro Kashiki  
1st Author's Affiliation KDDI Research, Inc (KDDI Research)
2nd Author's Name Tomoki Sada  
2nd Author's Affiliation KDDI Research, Inc (KDDI Research)
3rd Author's Name Akihide Nagamine  
3rd Author's Affiliation Tokyo Institue of technology (Tokyo Inst. of Tech.)
4th Author's Name Fumio Watanabe  
4th Author's Affiliation Tokyo Institue of technology (Tokyo Inst. of Tech.)
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Date Time 2017-05-25 13:25:00 
Presentation Time 25 
Registration for SAT 
Paper # IEICE-SAT2017-2 
Volume (vol) IEICE-117 
Number (no) no.52 
Page pp.7-12 
#Pages IEICE-6 
Date of Issue IEICE-SAT-2017-05-18 

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