Results 91 to 100 of about 2,557 (191)
A Survey of NOMA for VLC Systems: Research Challenges and Future Trends. [PDF]
Sensors (Basel), 2022 Sadat H, Abaza M, Mansour A, Alfalou A.
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Comparison between the Performance of Algorithmic Optical Codes and Orthogonal Optical Codes in OCDMA Systems [PDF]
, 2008 A novel method to be used in OCDMA systems is exhaustively described in this paper. It uses Algorithmic Optical Codes (AOCs). They are based on the signature sequence idea. However patterns are constantly changing.
Martín González, Jesús Ángel +2 more
core
Keys towards practical OCDMA networks
, 2008 The performance comparison of different OCDMA schemes is addressed in this paper. As the result, the merits of coherent 1-D time-spreading and spectral coding schemes and incoherent 2-D scheme are highlighted.
Xu Wang
core
Dynamic weight routing and optical-code algorithm based on SDN. [PDF]
Heliyon, 2023 Li L, Li K, Meng X, Wang Y, Wang X.
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Guangtongxin yanjiu, 2010 文章以"同步修正素数码"为基础,利用互相垂直的两组线偏振光构造了适用于同步光码分多址（OCDMA）系统的二维光正交地址码。通过分析码字的自相关和互相关特性,确定了其选码原则。在此基础上,设计了适用于同步OCDMA系统的二维光编码器。仿真结果表明,与一维同步OCDMA系统相比,二维同步光正交地址码具有更优良的接收性能,并解决了器件在实际使用过程中可能出现的功率非线性叠加问题。
张晓燕, 杨祎
doaj
Novel decoding of convolutional codes for OCDMA system
Tongxin xuebao, 2009 The characteristics of optical code division multiple access（OCDMA） and convolutional codes were introduced.Based on the tunnel model of OCDMA with its multiple access interference（MAI）, and according to its characteristics, a novel decoding of ...
ZHOU Hai-xian, XU Guo-liang, YAO Wei
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Two-Dimensional Permutation Vectors' (PV) Code for Optical Code Division Multiple Access Systems. [PDF]
Entropy (Basel), 2020 Yousif Ahmed H +5 more
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Special Issue on Enabling Technology in Optical Fiber Communications: From Device, System to Networking. [PDF]
Sensors (Basel), 2021 Yue Y, Zhao J, Du J, Li Z.
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Error Probability Bound Considering Beat Noise in 2-D OCDMA Systems
Journal of Communications Software and Systems, 2007 Considering a 2-Dimensional Optical Code Division Multiple Access (2-D OCDMA) system using spreading codes in both time and wavelength domains, we study in this paper theimpact on the performance of one of the most predominantperformance limitation which
Stephanie Sahuguede +2 more
doaj
Guangtongxin yanjiu, 2002 文章对光接入网 （ OAN）中光码分多址 （ OCDMA）方式进行了研究分析 ,并进行了计算机模拟 ,结果表明 ,在 OAN中引入 OCDMA技术 ,不需网络同步 ,在下行方向有很好的安全性 ,用户和业务可随机接入 ...
高泽华, 钱宗珏, 徐大雄
doaj