教師資料查詢 | 類別: 期刊論文 | 教師: 楊淳良 Yang, Chun-liang (瀏覽個人網頁)

標題:Noncoherent Spatial/Spectral Optical CDMA System With Two-Dimensional Perfect Difference Codes
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
語言英文(美國)
ISSN0733-8724;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
國別美國
公開徵稿
出版型式,電子版,紙本
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