کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
848160 | 909238 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of four wave mixing on the performance of optical CDMA transmission system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Impact of four wave mixing on the performance of optical CDMA transmission system Impact of four wave mixing on the performance of optical CDMA transmission system](/preview/png/848160.png)
چکیده انگلیسی
A theoretical analysis is presented to evaluate the bit error rate (BER) performance of a direct sequence optical code division multiple access (DS-OCDMA) system with dispersion shifted fiber (DSF) considering the effect of four wave mixing (FWM). To verify the analytical expression of BER, the BER performance is evaluated using Matlab simulation with 63 chips per bit m-sequence as well as Gold sequence and compared with analytical results. It is investigated that simulation and analytical results are similar in all cases. Further, BER performance is evaluated for 1023 chips per bit encoding using analytical expression. The BER performance is found to be degraded due to FWM effect if the transmitted power per channel and number of simultaneous users are increased. It is investigated that maximum allowable transmitted power per channel is limited due to FWM effect. It is found that the maximum allowable transmitted power per channel is limited to 15Â dB for 10 users and 20Â dB for 20 users for a 100Â Mb/s, 1000Â km system with 1023 chips per bit encoding at a BER of 10-9.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 126, Issue 18, September 2015, Pages 1572-1575
Journal: Optik - International Journal for Light and Electron Optics - Volume 126, Issue 18, September 2015, Pages 1572-1575
نویسندگان
Fenfei Hou, Ming Yang,