| Presentation | 2020-02-19 Separate Detection of Collided Packets using Parallel Interference Cancellation over Space-based AIS Channels Yuwa Takanezawa, Yuyuan Chang, Kazuhiko Fukawa, Daichi Hirahara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, satellite-based automatic identification system (AIS) has attracted much attentions because it can receive AIS packets across the open ocean. As such a satellite system, Japan Aerospace eXploration Agency (JAXA) has conducted an experiment named Space-based AIS Experiment (SPAISE) in Japan where satellites equipped with AIS receivers have been launched, and observed AIS signals suffering from the Doppler shift. The results clarify that the wide coverage of the satellites causes a collision of multiple AIS signal packets, which degrades their transmission performance severely. To cope with such collided packets, a separate detection scheme using successive interference cancellation (SIC) has been investigated and achieved good performance when received power difference among the collided packets is considerably large. However, the bit error rate (BER) degrades more severely as desired to undesired signal power ratio (DUR) becomes smaller. To solve this problem, we consider the separate detection as a multi-user detection (MUD) problem, and propose parallel interference cancellation (PIC) to be used for separating the collided packets, which results in excellent BER performance even when the DUR is relatively small. Computer simulations under Rician fading conditions show that PIC outperforms SIC when channel parameters are perfectly estimated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Automatic Identification System (AIS) / Space-based AIS / packet collision / PIC / SIC |
| Paper # | SAT2019-73 |
| Date of Issue | 2020-02-12 (SAT) |
| Conference Information | |
| Committee | SAT / SANE |
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| Conference Date | 2020/2/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Fumihiro Yamashita(NTT) / Akitsugu Nadai(NICT) |
| Vice Chair | Hisashi Sujikai(NHK) / Hiroyasu Ishikawa(Nihon Univ.) / Hiroyoshi Yamada(Niigata Univ.) / Makoto Tanaka(Tokai Univ.) |
| Secretary | Hisashi Sujikai(NTT) / Hiroyasu Ishikawa(NHK) / Hiroyoshi Yamada(Univ. of Electro-Comm.) / Makoto Tanaka(Mitsubishi Electric) |
| Assistant | Shinobu Nanba(KDDI Research) / Takuya Okura(NICT) / Ryo Natsuaki(Univ. of Tokyo) / Masato Yamanashi(Mitsubishi Space Software) / Shunichi Futatsumori(ENRI) |
| Paper Information | |
| Registration To | Technical Committee on Satellite Telecommunications / Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Separate Detection of Collided Packets using Parallel Interference Cancellation over Space-based AIS Channels |
| Sub Title (in English) | |
| Keyword(1) | Automatic Identification System (AIS) |
| Keyword(2) | Space-based AIS |
| Keyword(3) | packet collision |
| Keyword(4) | PIC |
| Keyword(5) | SIC |
| 1st Author's Name | Yuwa Takanezawa |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 2nd Author's Name | Yuyuan Chang |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 3rd Author's Name | Kazuhiko Fukawa |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 4th Author's Name | Daichi Hirahara |
| 4th Author's Affiliation | Japan Aerospace eXploration Agency(JAXA) |
| Date | 2020-02-19 |
| Paper # | SAT2019-73 |
| Volume (vol) | vol.119 |
| Number (no) | SAT-417 |
| Page | pp.pp.33-38(SAT), |
| #Pages | 6 |
| Date of Issue | 2020-02-12 (SAT) |