On error-correction coding for CDMA PON

被引：19

作者：

Lundqvist, H ^{[1
]}

Karlsson, G ^{[1
]}

机构：

[1] KTH, Royal Inst Technol, Lab Commun Networks, S-16440 Kista, Sweden

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2005年 / 23卷 / 08期

关键词：

beat noise; error-correction coding; optical-code-division multiple access (OCDMA); soft decoding;

D O I：

10.1109/JLT.2005.850776

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：

Optical-code-division multiple access (OCDMA) has been investigated as a multiple-access technique for a long time, but so far, it has not reached any practical success. We investigate the performance of low-complexity OCDMA systems with a realistic model of noise and interference; the main limitation of the system is beat noise. To improve the performance, we consider forward-error correction (FEC) and soft decoding using standard error-correcting codes. The achievable error rates are evaluated using simulations and show significant improvement when FEC is used. The results also show that frequency-hopping systems perform better than temporally coded systems when beat noise is taken into accound.

引用

下载

页码：2342 / 2351

页数：10

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