| 著者 |
山田憲蔵, ベンナイラシャドリア, 岡田啓, 片山正昭 |
| 題目 |
乱流を伴う水中光無線通信システムにおけるショット雑音を考慮した最適受信機の性能評価 |
| 出典 |
情報理論とその応用シンポジウム |
| 要約 |
|
| Authors |
K. Yamada, C. Ben Naila, H. Okada, M. Katayama |
| Title |
Evaluation of Optimum Receiver considering Shot Noise \\over Turbulent Underwater Optical Wireless Channel |
| Authority |
Symposium on Information Theory and Its Applications (SITA) |
| Summary |
This paper investigates underwater optical wireless communication (UOWC) systems in the presence of water turbulence. We introduce an optimal receiver design based on maximum a posteriori (MAP) estimation while considering not only thermal noise but also shot noise for pulse-position modulation (PPM), pulse-amplitude modulation (PAM), and pulse-amplitude-and-position modulation (PAPM). Our system model includes the main factors impairing the optical signal intensity, i.e., light absorption, scattering, together with water turbulence, which has not been thoroughly investigated in other UOWC studies. In addition to the MAP-based receiver, a simplified configuration of the receiver is also examined. The results show that a symbol error rate (SER) of 0.001 is achieved at a distance of 20 m for all the modulation schemes. The superiority of PPM over PAM and PAPM in terms of the SER is also shown. We demonstrate that the simplified receiver obtains almost the same SER as the MAP receiver. |
| 年月 |
2021年12月 |
| DOI/Handle |
|
| 開催場所 |
兵庫 |
| 研究テーマ |
可視光通信／光無線通信
|
| 言語 |
日本語 |
| 原稿/プレゼン資料 |
 /  (ローカル限定) |
