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首页> 外文期刊>Arabian Journal for Science and Engineering >Design and Implementation of Two-Dimensional Enhanced Multi-diagonal Code for High Cardinality OCDMA-PON
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Design and Implementation of Two-Dimensional Enhanced Multi-diagonal Code for High Cardinality OCDMA-PON

机译：高基数OCDMA-PON的二维增强型多对角线代码的设计与实现

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摘要

This paper proposes the design of a novel two-dimensional enhanced multi-diagonal (2D-EMD) code along with the implementation of corresponding architecture for incoherent optical code division multiple access passive optical network (OCDMA-PON). The proposed algorithm is derived by using spatial coding as second dimension in the existing 1D-EMD code to elevate orthogonality within adjacent codes and minimize the interference of subscribers simultaneously accessing the medium. Performance of the proposed 2D-EMDOCDMAsystem is analyzed through Gaussian approximation and simulation analysis for an agreeable bit error rate (BER) of 10(-9). Analytic analysis shows that the proposed 2D-EMD OCDMA system supportmore subscribers in comparison with existing systems based on 2D diluted-perfect difference (2D-DPD) and diagonal eigenvalue unity (DEU) codes. Cardinality of the proposed setup surpasses 2D-DPD and 2D-DEU by 5 and 1.8 times for an acceptable BER of 10(-9). Moreover, the optimal communication requirement is satisfied by 2D-EMD system with lowest effective source power of -27dBm at 622Mbps of data. Simulation analysis through a highly recognized software called Optisystem also validates the mathematical analysis and shows that the proposed system can accommodate large number of subscribers at high data rates. Both analytical and simulation analysis proves that the proposed system is able to support next generation PONs.
机译：本文提出了一种新颖的二维增强多对角线（2D-EMD）码的设计，以及针对非相干光码分多址无源光网络（OCDMA-PON）的相应体系结构的实现。通过在现有的一维-EMD码中使用空间编码作为第二维，以提高相邻码内的正交性并最小化同时访问媒体的订户的干扰，来推导提出的算法。通过高斯逼近和仿真分析，对所建议的2D-EMDOCDMA系统的性能进行了分析，得出10（-9）的合格误码率（BER）。分析分析表明，与基于2D稀释完美差异（2D-DPD）和对角特征值统一（DEU）码的现有系统相比，拟议的2D-EMD OCDMA系统支持更多订户。对于可接受的10（-9）BER，建议设置的基数超过2D-DPD和2D-DEU 5倍和1.8倍。此外，2D-EMD系统满足了最佳通信要求，在622Mbps数据传输时，最低有效源功率为-27dBm。通过被称为Optisystem的高度认可的软件进行的仿真分析也验证了数学分析，并表明所提出的系统可以以高数据速率容纳大量订户。分析和仿真分析均证明所提出的系统能够支持下一代PON。

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