Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission

碩士 === 國立成功大學 === 電腦與通信工程研究所 === 105 === In this thesis, we adopt spectral-amplitude coding (SAC) of optical code-division multiple-access (OCDMA) to access multiple bio-signals transmission over Body-Area Network (BAN). The SAC-OCDMA scheme of BANs calls at superposition coding transmission using o...

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Main Authors: Zheng-XunWu, 吳政勳
Other Authors: Jen-Fa Huang
Format: Others
Language:en_US
Published: 2017
Online Access:http://ndltd.ncl.edu.tw/handle/8e9n33
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spelling ndltd-TW-105NCKU56520112019-05-15T23:16:30Z http://ndltd.ncl.edu.tw/handle/8e9n33 Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission 利用循環檢測相關性差值法以消除生醫訊號傳送過程下之干擾 Zheng-XunWu 吳政勳 碩士 國立成功大學 電腦與通信工程研究所 105 In this thesis, we adopt spectral-amplitude coding (SAC) of optical code-division multiple-access (OCDMA) to access multiple bio-signals transmission over Body-Area Network (BAN). The SAC-OCDMA scheme of BANs calls at superposition coding transmission using orthogonal code sequences between different physiological signals acquired by sensor nodes from the human body. Multiple-access interference (MAI) may arise in BANs whenever a certain number of transmitted physiological bio-signals led to operate near each other under the same spectrum band. Therefore, designing a robust mechanism of detector to enhance capacity, complexity reduction, and decoding performance is our purpose. In this thesis, we propose a recursive interference cancellations (RIC) scheme on correlation decoding and balanced photo-detector (BPD) subtractions over multi stages OCDMA spectral decoding for body area network. The proposed scheme provides gradual stage operation to suppress variable of related noise. We make use of arrayed waveguide grating (AWG) cyclic property to simplify the receiver design by recursive configuration. The RIC process gradually remove the corresponding signature signals on the respective correlation-subtraction round. Simultaneously, the RIC processes suppress the accumulated interference noise in the gradual correlation round. In numerical analysis, the RIC not only progressively suppress the transceiver related noise, but also eliminate MAI. Analytical results show that the proposed RIC scheme can offer significant improvement on overall system BER. Jen-Fa Huang 黃振發 2017 學位論文 ; thesis 66 en_US
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language en_US
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description 碩士 === 國立成功大學 === 電腦與通信工程研究所 === 105 === In this thesis, we adopt spectral-amplitude coding (SAC) of optical code-division multiple-access (OCDMA) to access multiple bio-signals transmission over Body-Area Network (BAN). The SAC-OCDMA scheme of BANs calls at superposition coding transmission using orthogonal code sequences between different physiological signals acquired by sensor nodes from the human body. Multiple-access interference (MAI) may arise in BANs whenever a certain number of transmitted physiological bio-signals led to operate near each other under the same spectrum band. Therefore, designing a robust mechanism of detector to enhance capacity, complexity reduction, and decoding performance is our purpose. In this thesis, we propose a recursive interference cancellations (RIC) scheme on correlation decoding and balanced photo-detector (BPD) subtractions over multi stages OCDMA spectral decoding for body area network. The proposed scheme provides gradual stage operation to suppress variable of related noise. We make use of arrayed waveguide grating (AWG) cyclic property to simplify the receiver design by recursive configuration. The RIC process gradually remove the corresponding signature signals on the respective correlation-subtraction round. Simultaneously, the RIC processes suppress the accumulated interference noise in the gradual correlation round. In numerical analysis, the RIC not only progressively suppress the transceiver related noise, but also eliminate MAI. Analytical results show that the proposed RIC scheme can offer significant improvement on overall system BER.
author2 Jen-Fa Huang
author_facet Jen-Fa Huang
Zheng-XunWu
吳政勳
author Zheng-XunWu
吳政勳
spellingShingle Zheng-XunWu
吳政勳
Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission
author_sort Zheng-XunWu
title Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission
title_short Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission
title_full Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission
title_fullStr Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission
title_full_unstemmed Optical Interference Cancellations with Recursive Correlation Subtractions on Bio-Inspired Signals Transmission
title_sort optical interference cancellations with recursive correlation subtractions on bio-inspired signals transmission
publishDate 2017
url http://ndltd.ncl.edu.tw/handle/8e9n33
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