맨체스터 부호로 코딩된 하향신호의 재변조를 이용한 광가입자 망에서 상향속도개선을 위한 임계치의 설정

The threshold level of a receiver is analyzed for the simplification of system and the improvement of upstream data ratios in optical subscriber network of which the upstream date rate and the optical transmitted power are changed to meet the requested BER (Bit Error Rate) defined per interactive mu...

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Published in韓國컴퓨터情報學會論文誌 Vol. 16; no. 12; pp. 175 - 185
Main Author 박상조(Sang-Jo Park)
Format Journal Article
LanguageKorean
Published 한국컴퓨터정보학회 2011
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ISSN1598-849X
2383-9945

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Abstract The threshold level of a receiver is analyzed for the simplification of system and the improvement of upstream data ratios in optical subscriber network of which the upstream date rate and the optical transmitted power are changed to meet the requested BER (Bit Error Rate) defined per interactive multimedia services. In asynchronous optical subscriber network of which the upstream to downstream data ratios are 1:1/2, 1:1/4, 1:1/8 and 1:1/16 with manchester coded downstream and NRZ (Non Return to Zero) downstream re-modulation, the BER performance is theoretically analyzed and it is performed by simulation with MATLAB according to the four types of downstream data for four models. The results have shown that in the cases which the upstream to downstream data ratios are 1:1/4, 1:1/8 and 1:1/16 the conventional receiver with threshold level of 1/2 can be applied regardless of average received optical powers and the BER is not much deteriorated compared with using the optimal threshold level. In the case that the upstream to downstream data ratio is 1:1/2 the threshold level in an optical receiver could be fixed at 1/3 and the BER is not much deteriorated compared with using the optimal threshold level as the average received optical power increases. 대화형 멀티 미디어 서비스와 요구 오차율에 따라 상향속도와 광송신전력을 설정하는 광가입자망에서 시스템의 단순화 및 상향속도 개선을 위해 임계치의 설정을 분석한다. 상향과 하향 데이터 속도비가 1:1/2, 1:1/4, 1:1/8, 1:1/16인 맨체스터 부호로 코딩된 하향신호의 재변조를 이용한 비대칭 광 가입자망에서 4가지 하향 데이터의 형태에 따라서 재변조한 상향신호의 평균오차율을 이론적으로 분석하여, 매트랩을 이용한 시뮬레이션으로 수치 결과를 분석한다. 상하향 데이터 속도비가 1:1/16, 1/8 및 1/4 의 경우 광수신전력에 관계없이 최적 임계치를 사용한 광수신기 보다 성능을 크게 악화시키지 않고 임계치가 1/2인 종래의 광수신기를 적용할 수 있음을 알 수 있다. 상하향 데이터 속도비가 1:1/2의 경우 광 수신기의 임계치를 1/3로 고정시키고 평균 광수신전력이 증가하면 최적 임계치를 사용한 광수신기 보다 성능을 크게 악화시키지 않음을 알 수 있다.
AbstractList The threshold level of a receiver is analyzed for the simplification of system and the improvement of upstream data ratios in optical subscriber network of which the upstream date rate and the optical transmitted power are changed to meet the requested BER (Bit Error Rate) defined per interactive multimedia services. In asynchronous optical subscriber network of which the upstream to downstream data ratios are 1:1/2, 1:1/4, 1:1/8 and 1:1/16 with manchester coded downstream and NRZ (Non Return to Zero) downstream re-modulation, the BER performance is theoretically analyzed and it is performed by simulation with MATLAB according to the four types of downstream data for four models. The results have shown that in the cases which the upstream to downstream data ratios are 1:1/4, 1:1/8 and 1:1/16 the conventional receiver with threshold level of 1/2 can be applied regardless of average received optical powers and the BER is not much deteriorated compared with using the optimal threshold level. In the case that the upstream to downstream data ratio is 1:1/2 the threshold level in an optical receiver could be fixed at 1/3 and the BER is not much deteriorated compared with using the optimal threshold level as the average received optical power increases. 대화형 멀티 미디어 서비스와 요구 오차율에 따라 상향속도와 광송신전력을 설정하는 광가입자망에서 시스템의 단순화 및 상향속도 개선을 위해 임계치의 설정을 분석한다. 상향과 하향 데이터 속도비가 1:1/2, 1:1/4, 1:1/8, 1:1/16인 맨체스터 부호로 코딩된 하향신호의 재변조를 이용한 비대칭 광 가입자망에서 4가지 하향 데이터의 형태에 따라서 재변조한 상향신호의 평균오차율을 이론적으로 분석하여, 매트랩을 이용한 시뮬레이션으로 수치 결과를 분석한다. 상하향 데이터 속도비가 1:1/16, 1/8 및 1/4 의 경우 광수신전력에 관계없이 최적 임계치를 사용한 광수신기 보다 성능을 크게 악화시키지 않고 임계치가 1/2인 종래의 광수신기를 적용할 수 있음을 알 수 있다. 상하향 데이터 속도비가 1:1/2의 경우 광 수신기의 임계치를 1/3로 고정시키고 평균 광수신전력이 증가하면 최적 임계치를 사용한 광수신기 보다 성능을 크게 악화시키지 않음을 알 수 있다.
대화형 멀티 미디어 서비스와 요구 오차율에 따라 상향속도와 광송신전력을 설정하는 광가입자망에서 시스템의 단순화 및 상향속도 개선을 위해 임계치의 설정을 분석한다. 상향과 하향 데이터 속도비가 1:1/2, 1:1/4, 1:1/8, 1:1/16인 맨체스터 부호로 코딩된 하향신호의 재변조를 이용한 비대칭 광 가입자망에서 4가지 하향 데이터의 형태에 따라서 재변조한 상향신호의 평균오차율을 이론적으로 분석하여, 매트랩을 이용한 시뮬레이션으로 수치 결과를 분석한다. 상하향 데이터 속도비가 1:1/16, 1/8 및 1/4 의 경우 광수신전력에 관계없이 최적 임계치를 사용한 광수신기 보다 성능을 크게 악화시키지 않고 임계치가 1/2인 종래의 광수신기를 적용할 수 있음을 알 수 있다. 상하향 데이터 속도비가 1:1/2의 경우 광 수신기의 임계치를 1/3로 고정시키고 평균 광수신전력이 증가하면 최적 임계치를 사용한 광수신기 보다 성능을 크게 악화시키지 않음을 알 수 있다. The threshold level of a receiver is analyzed for the simplification of system and the improvement of upstream data ratios in optical subscriber network of which the upstream date rate and the optical transmitted power are changed to meet the requested BER (Bit Error Rate) defined per interactive multimedia services. In asynchronous optical subscriber network of which the upstream to downstream data ratios are 1:1/2, 1:1/4, 1:1/8 and 1:1/16 with manchester coded downstream and NRZ (Non Return to Zero) downstream re-modulation, the BER performance is theoretically analyzed and it is performed by simulation with MATLAB according to the four types of downstream data for four models. The results have shown that in the cases which the upstream to downstream data ratios are 1:1/4, 1:1/8 and 1:1/16 the conventional receiver with threshold level of 1/2 can be applied regardless of average received optical powers and the BER is not much deteriorated compared with using the optimal threshold level. In the case that the upstream to downstream data ratio is 1:1/2 the threshold level in an optical receiver could be fixed at 1/3 and the BER is not much deteriorated compared with using the optimal threshold level as the average received optical power increases. KCI Citation Count: 2
Author 박상조(Sang-Jo Park)
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DocumentTitleAlternate Threshold Level Setting of a Receiver in Optical Subscriber Network with Manchester Coded Downstream and NRZ Upstream Re-modulation for the Improvement of Upstream Data Ratios
DocumentTitle_FL Threshold Level Setting of a Receiver in Optical Subscriber Network with Manchester Coded Downstream and NRZ Upstream Re-modulation for the Improvement of Upstream Data Ratios
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Issue 12
Keywords ONU(Optical Network Unit)
광가입자망
맨체스터 부호
OLT(Optical Line Termination)
재변조
Manchester code
광 네트워크 유니트
Re-modulation
광선로 단국장치
Optical subscriber network
Language Korean
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PublicationTitle 韓國컴퓨터情報學會論文誌
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Snippet The threshold level of a receiver is analyzed for the simplification of system and the improvement of upstream data ratios in optical subscriber network of...
대화형 멀티 미디어 서비스와 요구 오차율에 따라 상향속도와 광송신전력을 설정하는 광가입자망에서 시스템의 단순화 및 상향속도 개선을 위해 임계치의 설정을 분석한다. 상향과 하향 데이터 속도비가 1:1/2, 1:1/4, 1:1/8, 1:1/16인 맨체스터 부호로 코딩된 하향신호의 재변조를...
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SubjectTerms 컴퓨터학
Title 맨체스터 부호로 코딩된 하향신호의 재변조를 이용한 광가입자 망에서 상향속도개선을 위한 임계치의 설정
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