| 光纤色度色散对快跳频光码分多址系统性能影响 |
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| 引用本文： | 沈成彬,吴琛,于金辉,范戈. 光纤色度色散对快跳频光码分多址系统性能影响[J]. 光子学报, 2003, 32(1): 26-30 |
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| 作者姓名： | 沈成彬 吴琛 于金辉 范戈 |
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| 作者单位： | 上海交通大学,区域光纤通信网和新型光通信系统国家重点实验室,上海,200030 |
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| 摘 要： | 利用仿真法研究光纤色度色散对快跳频光码分多址系统的影响,主要研究了光纤色散导致的码字自相关输出峰值、取样切普内光能量的减小、不同条件下所能达到的最大用户数据速率和最大传输距离.给出了几个具有不同q值的典型快跳频光码分多址系统的最大用户数据速率和传输距离.提出了减小q值以降低色散影响的码字优化法.讨论了该系统的应用场合问题.
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| 关 键 词： | 快跳频光码分多址 色散 群速度延迟 码字优化 |
| 收稿时间： | 2001-11-19 |
Effect of Fiber''s Chromatic Dispersion on Performance of FFH-OCDMA System |
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| Abstract. Effect of Fiber''s Chromatic Dispersion on Performance of FFH-OCDMA System[J]. Acta Photonica Sinica, 2003, 32(1): 26-30 |
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| Authors: | Abstract |
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| Affiliation: | National Laboratory on Local Fiber-Optic Communication Networks &; Advanced Optical Communication Systems, Shanghai Jiaotong University 200030 |
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| Abstract: | Effects of fiber's chromatic dispersion on fast frequency hopping OCDMA systems were investigated by simulation.Emphases were placed on the decrement of peak power and sample energy of receiver's reconstructed pulses and of transmission distance.Based on these simulation results,limit of dispersion on user date rate and transmission distance in the FFH-OCDMA system was shown.Also,one method of coping with dispersion,i.e.code optimization,were proposed and analyzed. |
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| Keywords: | Optical Fast Frequency-Hop CDMA(FFH-OCDMA) Dispersion Group Velocity Delay (GVD) Code optimization |
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