送電線用高速ディジタル電力線搬送における周波数領域等化方式の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2018/12/01

タイトル(英語): Study on Frequency-domain Equalization Scheme for High-speed Digital Power Line Carrier Systems

著者名: 佐々木　範雄（通研電気工業（株）システム機器開発G），陳　強（東北大学），安達　文幸（東北大学）

著者名(英語): Norio Sasaki (Tsuken Electric Industrial Co., Ltd.), Qiang Chen (Tohoku University), Fumiyuki Adachi (Tohoku University)

キーワード: 送電線，電力線搬送，ディジタル伝送，周波数領域等化，シングルキャリア　　power transmission line，power line carrier，digital transmission，frequency-domain equalization，single-carrier

要約(英語): In this paper, we study a minimum mean square error based frequency-domain equalization (MMSE-FDE)scheme for a high-speed digital power line carrier system achieving 1.1 Mbps using 300 kHz bandwidth. Training sequence (TS) inserted single-carrier (SC) block transmission is employed. In the TS-SC block transmission, the Zadoff-Chu sequence is used as TS. TS acts as the cyclic prefix (CP) for MMSE-FDE. The channel estimation and noise power estimation are done using TS for computing the MMSE-FDE weight. In this paper, we design a digital power line carrier system of 210 ksymbol/s, in which the TS length of 64 symbols (Zadoff-Chu sequence) and the data block length of 960 symbols (64QAM) are used for achieving 1.1 Mbps transmission. The transmission performance of the designed digital power line carrier system is evaluated by computer simulation in terms of the normalization mean square error (NMSE) of channel estimation, the mean square error (MSE) of MMSE-FDE, and the bit error rate (BER). It is confirmed that MMSE-FDE is superior to MMSE time-domain equalization (MMSE-TDE) and zero-forcing (ZF) FDE and it achieves the required BER of 1×10-6 when the received Eb/N0=25 dB. Furthermore, we clarified the optimum value of forgetting factors of the first order infinite impulse response (IIR) filters used for channel estimation and noise estimation.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.138 No.12 （2018） 特集：電気・電子・情報関係学会東海支部連合大会

本誌掲載ページ: 1529-1538 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/138/12/138_1529/_article/-char/ja/