Development of new two-dimensional spectral/spatial code based on dynamic cyclic shift code for OCDMA system

被引：29

作者：

Jellali, Nabiha ^{[1
]}

Najjar, Monia ^{[1
,2
]}

Ferchichi, Moez ^{[1
]}

Rezig, Houria ^{[1
]}

机构：

[1] Univ Tunis El Manar, Natl Engn Sch Tunis, Commun Syst Lab Syscom, BP 37,Le Belvedere 1002, Tunis, Tunisia

[2] Univ Tunis El Manar, Higher Inst Comp Sci, Tunis, Tunisia

来源：

OPTICAL FIBER TECHNOLOGY | 2017年 / 36卷

关键词：

Data rate; Dynamic cyclic shift codes (DCS); Effective transmitted power; Multiple access interference (MAI); Spectral amplitude codes (SAC); Spectral width; PERFECT DIFFERENCE CODES; DIVISION MULTIPLE-ACCESS; OPTICAL CDMA SYSTEMS; UNITY DEU CODE; SAC-OCDMA; ENHANCEMENT; PERFORMANCE; CARDINALITY; FAMILY;

D O I：

10.1016/j.yofte.2017.02.002

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：

In this paper, a new two-dimensional spectral/spatial codes family, named two dimensional dynamic cyclic shift codes (2D-DCS) is introduced. The 2D-DCS codes are derived from the dynamic cyclic shift code for the spectral and spatial coding. The proposed system can fully eliminate the multiple access interference (MAI) by using the MAI cancellation property. The effect of shot noise, phase-induced intensity noise and thermal noise are used to analyze the code performance. In comparison with existing two dimensional (2D) codes, such as 2D perfect difference (2D-PD), 2D Extended Enhanced Double Weight (2D-Extended- EDW) and 2D hybrid (2D-FCC/MDW) codes, the numerical results show that our proposed codes have the best performance. By keeping the same code length and increasing the spatial code, the performance of our 2D-DCS system is enhanced: it provides higher data rates while using lower transmitted power and a smaller spectral width. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：26 / 32

页数：7

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