Dispersion in multiwavelength optical code-division multiple-access systems: Impact and remedies

被引：27
作者：
Ng, EKH [1 ]
Weichenberg, GE [1 ]
Sargent, EH [1 ]
机构：
[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2002年 / 50卷 / 11期
基金：
加拿大自然科学与工程研究理事会;
关键词：
chromatic dispersion; local-area networks; multi-wavelength optical networks; optical code-division multiple access; temporal skewing;
D O I：
10.1109/TCOMM.2002.805262
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Temporal skewing, a hitherto unexamined effect of chromatic dispersion on multiwavelength optical code-division multiple-access (MW-O-CDMA) systems, is explored through simulation of realistic networks. In addition, two novel methods for combating the deleterious effects of temporal skewing are proposed: optimum threshold detection and code-pattern preskewing. It is shown that for a practical system configuration with optimum threshold detection, MW-O-CDMA networks can maintain design bit error rate performance within an order of magnitude for link lengths of up to approximately 500 m. Our results show that the effect merits careful attention in the design and realization of any MW-O-CDMA system based on two-dimensional codes. Code pattern preskewing presents the possibility of completely eradicating the impact of temporal skewing.
引用
收藏
页码：1811 / 1816
页数：6
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