• Title/Summary/Keyword: Neural Network Adaptive Correlator

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A Study On Adaptive Correlator Receiver with Narrow-band Interferance in CDMA System (CDMA System에서 협대역 간섭제거 적응 상관기에 관한 연구)

  • Jeong Chan-Ju;Yang Hwa-Sup;Kim Yong-Shik;Oh Seung-Jae;Kim Jae-Gab
    • Management & Information Systems Review
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    • v.3
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    • pp.201-214
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    • 1999
  • Adaptive correlator receiver with neural network based on complex multilayer perceptron is persented for suppressing interference of narrow-band of direct spread spectrum communication systems. Recursive least square algorithm with backpropagation error is used for fast convergence and better performance in adaptive correlator scheme. According to signal noise and transmission power, computer simulation results show that bit error ratio of adaptive correlator using neural network improved that of adative transversal filter of direct sequence spread spectrum considering of jamming and narrow-band interference. Bit error ratio of adaptive correlator with neural network is reduced about 10-1 than that of adaptive transversal filter where interference versus signal ratio is 5dB.

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A NNAC using narrowband interference signal control in cellular mobile communication systems (셀룰라 이동 통신에서 NNAC를 이용한 협대역 간섭 신호 제어)

  • Cho, Hyun-Seob
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.3
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    • pp.542-546
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    • 2009
  • In this Paper, a back propagation neural network learning algorithm based on the complex multilayer perceptron is represented for controling and detecting interference of the received signals in cellular mobile communication system. We proposed neural network adaptive correlator which has fast convergence rate and good performance with combining back propagation neural network and the receiver of cellular. We analyzed and proved that NNAC has lower bit error probability than that of traditional RAKE receiver through results of computer simulation in the presence of the tone and narrow - band interference and the co-channel interference.

Performance of Adaptive Correlator using Recursive Least Square Backpropagation Neural Network in DS/SS Mobile Communication Systems (DS/SS 이동 통신에서 반복적 최소 자승 역전파 신경망을 이용한 적응 상관기)

  • Jeong, Woo-Yeol;Kim, Hwan-Yong
    • The Journal of the Acoustical Society of Korea
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    • v.15 no.2
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    • pp.79-84
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    • 1996
  • In this paper, adaptive correlator model using backpropagation neural network based on complex multilayer perceptron is presented for suppressing interference of narrow-band of direct sequence spread spectrum receiver in CDMA mobile communication systems. Recursive least square backpropagation algorithm with backpropagation error is used for fast convergence and better performance in adaptive correlator scheme. According to signal noise ratio and transmission power ratio, computer simulation results show that bit error ratio of adaptive correlator uswing backpropagation neural network improved than that of adaptive transversal filter of direct sequence spread spectrum considering of co-channel and narrow-band interference. Bit error ratio of adaptive correlator using backpropagation neural network is reduced about $10^{-1}$ than that of adaptive transversal filter where interference versus signal ratio is 5 dB.

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Interference Signal Control using Neural Network in Digital Mobile Communication (이동 무선 통신에서 신경망을 이용한 간섭 신호 제어)

  • 나상동;배철수
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.2 no.1
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    • pp.109-116
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    • 1998
  • In this paper, a back propagation neural network teaming algorithm based on the complex multilyer perceptron is represented for suppressing narrowband interference of the received signals in DS-SS mobile communication system. We proposed neural network adaptive correlator(NNAC) which has fast convergence rate and good performance with combining back propagation neural network and the receiver of DS-SS. We analyzed and proved that NNAC has lower bit error probability than that of traditional RAKE receiver through results of computer simulation in the presence of the tone and narrow-band interference and the co-channel interference.

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Direct-band spread system for neural network with interference signal control (직접 대역 확산 시스템에서 신경망을 이용한 간섭 신호 제어)

  • Cho, Hyun-Seob
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.3
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    • pp.1372-1377
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    • 2013
  • In this Paper, a back propagation neural network learning algorithm based on the complex multilayer perceptron is represented for controling and detecting interference of the received signals in cellular mobile communication system. We proposed neural network adaptive correlator which has fast convergence rate and good performance with combining back propagation neural network and the receiver of cellular. We analyzed and proved that NNAC has lower bit error probability than that of traditional RAKE receiver through results of computer simulation in the presence of the tone and narrow-band interference and the co-channel interference.