講演抄録/キーワード |
講演名 |
2020-01-25 11:40
Novel Frequency Domain Equalization with Threshold for Molecular Communication via Diffusion ○Ahsan Sohail・Yukitoshi Sanada(Keio Univ.) MICT2019-45 MBE2019-74 |
抄録 |
(和) |
This report proposes a frequency domain equalization (FDE) scheme with a threshold in molecular communication (MC). The responses of a MC channel are tendency to have low pass characteristics and inter-symbol interference limits the data rates of MC. However, because of the characteristics of the MC channel, equalization coefficients for high frequency components may increase. Therefore, noise enhancement occurs and it deteriorates communication performance. Furthermore, according to the threshold value, the amount of inter-symbol interference varies. As large channel responses concentrate at around a zero-frequency component, in the proposed equalization scheme, the high frequency component of the received signal is eliminated if the equalization coefficient exceeds a threshold. Numerical results obtained through computer simulation show that the threshold improves the communication performance with the proposed FDE. It is also shown that the trade-off between the noise enhancement and the pulse waveform effects on the performance. |
(英) |
This report proposes a frequency domain equalization (FDE) scheme with a threshold in molecular communication (MC). The responses of a MC channel are tendency to have low pass characteristics and inter-symbol interference limits the data rates of MC. However, because of the characteristics of the MC channel, equalization coefficients for high frequency components may increase. Therefore, noise enhancement occurs and it deteriorates communication performance. Furthermore, according to the threshold value, the amount of inter-symbol interference varies. As large channel responses concentrate at around a zero-frequency component, in the proposed equalization scheme, the high frequency component of the received signal is eliminated if the equalization coefficient exceeds a threshold. Numerical results obtained through computer simulation show that the threshold improves the communication performance with the proposed FDE. It is also shown that the trade-off between the noise enhancement and the pulse waveform effects on the performance. |
キーワード |
(和) |
Molecular Communication via Diffusion / Frequency Selective Channel / Frequency Domain Equalization / Inter Symbol Interference / MMSE / / / |
(英) |
Molecular Communication via Diffusion / Frequency Selective Channel / Frequency Domain Equalization / Inter Symbol Interference / MMSE / / / |
文献情報 |
信学技報, vol. 119, no. 390, MICT2019-45, pp. 29-33, 2020年1月. |
資料番号 |
MICT2019-45 |
発行日 |
2020-01-18 (MICT, MBE) |
ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
MICT2019-45 MBE2019-74 |
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