期刊論文
| 學年 | 94 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2005-12-01 |
| 作品名稱 | Noncoherent Spatial/Spectral Optical CDMA System With Two-Dimensional Perfect Difference Codes |
| 作品名稱（其他語言） | |
| 著者 | Lin, Cheing-hong; Wu, Jingshown; Yang, Chun-liang |
| 單位 | 淡江大學電機工程學系 |
| 出版者 | Piscataway: Institute of Electrical and Electronics Engineers(IEEE) |
| 著錄名稱、卷期、頁數 | Journal of Lightwave Technology 23(12), pp.3966-3980 |
| 摘要 | A dynamic optical code division multiple access (DOCDMA) communication system is proposed for high-bandwidth communication systems. An implementation of the system is proposed based on a fast tunable optical filter (TOF) in each encoder and decoder. This technique actively modulates the central wavelength of a TOF according to a functional code at the transmitter during the bit period before the transmission of the data. The system is modeled and analyzed taking into account multiple access interference (MAI), thermal noise, and phase-induced intensity noise (PIIN). The performance of this system is compared to that of a spectral amplitude coding system that uses either a Hadamard code or a modified quadratic congruence (MQC) code. The results show that the proposed DOCDMA system reduces the PIIN effect on the performance of the system and improves the bit error rate (BER) performance at a large number of users. Furthermore, it is found that when the effective power is large enough, the MAI becomes the main factor that limits system performance, whereas when the effective power is relatively low, both thermal noise and PIIN become the main limiting factors with thermal noise having the main influence. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 0733-8724 1558-2213 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/46374 ) |