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研究生:原孝鑫
研究生(外文):Hsiao-Hsin Yuan
論文名稱:應用於具不同片功率任意最大互相關值雙碼重光纖分碼多工系統之效能分析
論文名稱(外文):Accurate Analysis on Double-Weight Codes With an Arbitrary Maximum Cross-correlation Value for Different-Chip-Power Optical CDMA Systems
指導教授:楊谷章
指導教授(外文):Guu-Chang Yang
口試委員:趙啟超林茂昭歐陽彥杰
口試日期:2012-07-19
學位類別:碩士
校院名稱:國立中興大學
系所名稱:通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:英文
論文頁數:29
中文關鍵詞:光纖分碼多工系統功率控制服務品質多碼重
外文關鍵詞:optical code division multiple accesspower controlquality of servicevariable weight
相關次數:
  • 被引用被引用:0
  • 點閱點閱:178
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
由於傳送光纖功率的限制,過去的研究主要針對不同的服務品質之光纖分碼多工多媒體網路,在使用相同位元功率傳送的基本假設下進行系統效能分析。在過去的研究中,已推導出具有最大互相關值為一之雙碼重光纖碼的準確效能分析模型,然而由於數學複雜度的緣故,對於最大互相關值大於一的光纖碼之效能分析模型,僅有近似的效能分析模型。在本篇論文中,我們推導出一具任意最大互相關值大於等於一之雙碼重光纖碼的整體系統準確效能分析模型,並透過電腦模擬驗證理論分析的正確性。所推導的整體系統準確效能分析模型將可應用於如光纖網路的服務監控與故障監視,以及採用光纖碼的光纖感測系統之感測辨識等功率感測應用。

Due to power restriction of some laser sources, the use of same power (per bit duration) in optical codes in incoherent optical code-division multiple-access multimedia networks with variable quality-of-services was previously studied. In those studies, the performance of double-weight codes with the maximum cross-correlation function=1 was exactly analyzed, but an approximation was only applied to the codes with the maximum cross-correlation function>1 due to mathematical complexity. In this thesis, an exact analytical model of double-weight codes with an arbitrary maximum cross-correlation function is formulated and validated with computer simulation. This general, exact, and more accurate performance model is also useful for power-sensitive applications, such as in-service monitoring and fiber-fault surveillance in optical networks and sensor-identification in fiber-sensor systems using optical codes for address or user identification.

Abstract ii
Contents iii
List of Figures iv
Chapter 1 Introduction 1
1.1 Background 1
1.2 Motivation and Outline of Thesis 2
Chapter 2 Performance Analysis of Different-Chip-Power, Double-Weight Codes 4
2.1 Analysis of Desired Lower-Chip-Power Code 4
2.2 Analysis of Desired Higher-Chip-Power Code 5
2.2.1 Approximate Error Probability 5
2.2.2 Exact Error Probability 6
Chapter 3 Numerical Simulation and Comparison 9
Chapter 4 Conclusions 14
Appendix A Derivation of Pe,exact 15
Appendix B Analytical Complexity of t>2 25
References 27

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