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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >All-optical VPN utilizing DSP-based digital orthogonal filters access for PONs
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All-optical VPN utilizing DSP-based digital orthogonal filters access for PONs

机译：所有基于DSP的数字正交过滤器的全光VPN用于PONS

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摘要

Utilizing digital filtering-enabled signal multiplexing and de-multiplexing, a cost-effective all-optical virtual private network (VPN) system is proposed, for the first time to our best knowledge, in digital filter multiple access passive optical networks (DFMA-PONs). Based on the DFMA technology, the proposed system can be easily designed to meet the requirements of next generation network's flexibility, elasticity, adaptability and compatibility. Through dynamic digital filter allocation and recycling, the proposed all-optical VPN system can provide dynamic establishments and cancellations of multiple VPN communications with arbitrary traffic volumes. More importantly, due to the employment of DFMA technology, the system is not limited to a fixed signal format and different signal formats such as pulse amplitude modulation (PAM), quadrature amplitude modulation (QAM) and orthogonal frequency division multiplexing (OFDM) can be used. Moreover, one transceiver is sufficient to simultaneously transmit upstream (US)/VPN data to optical line terminal (OLT) or other VPN optical network units (ONUs), thus leading to great reduction in network constructions and operation expenditures. The proposed all-optical VPN system is demonstrated with the transceiver incorporating the formats of QAM and OFDM, which can be made transparent to downstream (DS), US and VPN communications. The bit error rates (BERs) of DS, US and VPN for OFDM signals are below the forward-error-correction (FEC) limit of 3.8 x 10(-3) when the received optical powers are about -16.8 dBm, -14.5 dBm and -15.7 dBm, respectively. (C) 2017 Elsevier B.V. All rights reserved.
机译：利用能够实现数字滤波的信号复用和解复用，提出了一种经济高效的全光学虚拟专用网络（VPN）系统，首次在数字滤波器多次访问被动光网络中首次提出了我们最佳知识（DFMA-PONS ）。基于DFMA技术，建议的系统可以很容易地设计，以满足下一代网络的灵活性，弹性，适应性和兼容性的要求。通过动态数字滤波器分配和回收，所提出的全光VPN系统可以提供与任意流量卷的多个VPN通信的动态建立和取消。更重要的是，由于DFMA技术的就业，该系统不限于固定信号格式和不同的信号格式，例如脉冲幅度调制（PAM），正交幅度调制（QAM）和正交频分复用（OFDM）可以是用过的。此外，一个收发器足以同时将上游（US）/ VPN数据发送到光线终端（OLT）或其他VPN光网络单元（ONU），从而导致网络结构和操作支出的大大降低。通过包含QAM和OFDM格式的收发器对所提出的全光VPN系统进行说明，这可以对下游（DS），US和VPN通信透明。对于OFDM信号的DS，US和VPN的误码率（BER）低于前向纠错（FEC）限制为3.8×10（-3），当接收的光功率约为-16.8 dBm，-14.5 dBm分别为-15.7 dbm。 （c）2017年Elsevier B.V.保留所有权利。

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