Analysis of normalized throughput in WDM-based coherent time-spreading OCDMA system

被引：1
|
作者：
Ji, Jianhua [1 ]
Chen, Zhiwen [2 ]
Xu, Ming [1 ]
机构：
[1] Shenzhen Univ, Adv Technol Res Ctr, Shenzhen 518060, Peoples R China
[2] Shanghai Univ Sci & Technol, Opt Elect Informat Engn Coll, Shanghai 200093, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2009年 / 7卷 / 02期
基金：
中国国家自然科学基金;
关键词：
PERFORMANCE; CODE;
D O I：
10.3788/COL20090702.0098
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The performance of normalized throughput in wavelength division multiplexing (WDM) based coherent time-spreading optical code division multiple access (TS-OCDMA) system is studied. The upper bound and lower bound of normalized throughput are obtained with 8 wavelength channels and 1.27-length Gold code, and with 4 wavelength channels and 511-length Cold code respectively. It is shown that when all simultaneous users are equally allocated to different wavelength channels, WDM+TS-OCDMA has much better performance. However, if there is no central control to allocate wavelength channels equally, WDM+TS-OCDMA system has the in-between performance of normalized throughput.
引用
收藏
页码：98 / 101
页数：4
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