| Presentation | 2017-05-25 Feature detection scheme using Cyclic Prefix (CP) in OFDM signal Kanshiro Kashiki, Tomoki Sada, Akihide Nagamine, Fumio Watanabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | feature detection / Cyclic Prefix / millimeter band / interference monitoring / satellite and cellular system |
| Paper # | SAT2017-2 |
| Date of Issue | 2017-05-18 (SAT) |
| Conference Information | |
| Committee | WBS / SAT |
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| Conference Date | 2017/5/25(2days) |
| 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. |
| Chair | Fumiaki Maehara(Waseda Univ.) / Takatoshi Sugiyama(Kogakuin Univ.) |
| Vice Chair | Masanori Hamamura(Kochi Univ. of Tech.) / Fumie Ono(NICT) / Toshinori Susuki(Tohoku Gakuin Univ.) / Hiroyuki Tsuji(NICT) |
| Secretary | Masanori Hamamura(Tokyo City Univ.) / Fumie Ono(Mitsubishi Electric) / Toshinori Susuki(Okinawa College) / Hiroyuki Tsuji(KDDI Research) |
| Assistant | Yusuke Kozawa(Ibaraki Univ.) / Akira Nakamura(Tokyo Univ. of Science) / Ryohei Nakamura(National Defense Academy) |
| Paper Information | |
| Registration To | Technical Committee on Wideband System / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| 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.) |
| Date | 2017-05-25 |
| Paper # | SAT2017-2 |
| Volume (vol) | vol.117 |
| Number (no) | SAT-52 |
| Page | pp.pp.7-12(SAT), |
| #Pages | 6 |
| Date of Issue | 2017-05-18 (SAT) |