| Presentation | 2017-11-23 A Study on EXIT Chart Based Design of Low-Density Parity-Check Codes for Iterative Soft Beat Interference Canceller in Pilot-Assisted Optical-OFDM Noboru Osawa, Shinsuke Ibi, Koji Igarashi, Seiichi Sampei, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a low density parity check (LDPC) code design based on extrinsic information transfer (EXIT) chart analysis for iterative soft beat interference canceller in pilot-assisted optical orthogonal frequency division multiplexing (OFDM) systems. Pilot-assisted optical-OFDM transmission is a linear demodulation schemes based on single photodiode. Although the complex baseband signal can be detected from direct detected amplitude, it could be impaired with the signal-signal beat interference. We have studied an iterative soft beat interference canceller with the assistance of forward error correction (FEC) to mitigate the interference, and revealed that a suitable FEC code is necessary for the iterative detection. In this paper, we focus on a design of LDPC codes which is well studied in terms of EXIT chart analysis, and design an LDPC code for the interference canceller. The validity of the optimized LDPC code is demonstrated by computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Direct-Detection / Optical-OFDM / EXIT Chart Analysis / Iterative Detection / LDPC |
| Paper # | OCS2017-60 |
| Date of Issue | 2017-11-16 (OCS) |
| Conference Information | |
| Committee | OFT / OCS / IEE-CMN / ITE-BCT |
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| Conference Date | 2017/11/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kansa-Univ. Umeda Campus |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Masayuki Shigematsu(Sumitomo Electric Industries) / Itsuro Morita(KDDI Research) / Shun Morimura(CRIEPI) / Tomoaki Ohtsuki(Keio Univ.) |
| Vice Chair | / / / Naohiko Iai(NHK) / Yasushi Kasuga(TV Asahi) |
| Secretary | (NTT) / (Furukawa Electric) / (Sumitomo Electric Industries) / Naohiko Iai(NTT) / Yasushi Kasuga(NTT) |
| Assistant | Hiroshi Watanabe(NTT) / Katsuki Suematsu(Furukawa Electric) / / Tomotaka Kimura(Tokyo Univ. of Science) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / Technical Meeting on Communications / Technical Group on Broadcasting Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on EXIT Chart Based Design of Low-Density Parity-Check Codes for Iterative Soft Beat Interference Canceller in Pilot-Assisted Optical-OFDM |
| Sub Title (in English) | |
| Keyword(1) | Direct-Detection |
| Keyword(2) | Optical-OFDM |
| Keyword(3) | EXIT Chart Analysis |
| Keyword(4) | Iterative Detection |
| Keyword(5) | LDPC |
| 1st Author's Name | Noboru Osawa |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Shinsuke Ibi |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Koji Igarashi |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Seiichi Sampei |
| 4th Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2017-11-23 |
| Paper # | OCS2017-60 |
| Volume (vol) | vol.117 |
| Number (no) | OCS-322 |
| Page | pp.pp.17-22(OCS), |
| #Pages | 6 |
| Date of Issue | 2017-11-16 (OCS) |