搜索结果: 1-7 共查到“光信息技术 OCDMA”相关记录7条 . 查询时间(0.057 秒)
100-km uplink transmission of 10G- and 1G-ONU co-existing TDM-OCDMA-PON system using dual-rate burst-mode receiver
Networks Optical communications
2015/5/22
In a cost-effective TDM-OCDMA-PON system without en/decoder at each ONU, the uplink dispersion-compensation-free 10 Gbps/1 Gbps-co-existing TDM x 4-OCDMA transmission over 100 km SMF is demonstrated b...
Demonstration of Low-Cost Uplink Transmission in a Coherent OCDMA PON Using Gain-Switched Fabry–Perot Lasers With External Injection
Fabry–Perot (FP) laser gain-switching optical code-division multiple access (OCDMA) passive optical network (PON)
2016/12/2
We propose and demonstrate a simple and low-cost uplink transmission scheme for coherent optical code-division multiple access (OCDMA) passive optical networks (PONs), using gain-switched Fabry-Perot ...
Experimental demonstration of a centralized light source OCDMA-PON based on polariza tion multiplexing
Optical Code Division Multiple Access (OCDMA) passive optical network (PON) polarization access network
2016/12/2
A novel centralized light source OCDMA PON without wavelength filters is proposed and experimentally demonstrated. The OCDMA coded signals and the unmodulated clock pulses are polarization-multiplexed...
简要介绍了OCDMA系统的原理,分析了码型和码容量、地址序列的扩频作用对OCDMA安全性的影响,结合完全无差错探测几率给出完全探测到正确地址码所需探测次数的期望值,并以此重点分析了码字探测对OCDMA安全性的影响,比较分析了OCDMA技术与现代光纤保密通信技术的关系,给出了增加OCDMA系统安全性而采取的一些措施。
OCDMA系统中2-D码和3-D码
光码分多址 3-D地址码 2-D地址码 误码率
2008/9/23
光码分多址(OCDMA)技术主要应用在接入网中。设计大容量的地址码是该技术实用化的前提。本文在构造2D素数码的基础上提出了一种用于OCDMA系统的空域/频域/时域3D地址码。这种码基于素数序列运算。理论分析和数学计算结果表明,3D码比2D码的容量更大,系统带宽效率更高,误码率(BER)更低,表现出的性能更好。
Full-Duplex Demonstration of Asynchronous,10Gbps x 4-user DPSK- OCDMA System using Hybrid Multi-port and SSFBG En/Decoder
Full-Duplex DPSK-OCDMA System Hybrid Multi-port SSFBG En/Decoder
2015/8/6
We experimentally demonstrate error-free (BER<10 -9 ) transmission of full-duplex, asynchronous, 10Gbps x 4user DPSK-OCDMA system on same wavelength using hybrid multi-port and SSFBG en/decoder.
首次在有限伽罗瓦域GF(7)上以本原元3构造出RS地址序列码.在一维RS素数码的基础上,给出基于二素数的二维RS矩阵码(2D-RSC)的设计方案.系统地研究了2D-RSC的OCDMA系统总体性能:分析了2D-RSC码字的相关性;导出了系统的最大用户容量;研究了2D-RSC系统以多址干扰为主的误码性能.结果表明:2D-RSC系统性能较之一维RS码有明显的改进. 特别是在大信息量传输时,采用两个较大的...