Programmable Transponder for Future Optical Networks (PATRON)

当今的电信运营商正面临着为用户提供动态和高容量网络连接服务的日益增长的需求。这主要是由于FTTx技术的部署以及出现了对带宽要求更高、动态和异构的电子服务，如3D游戏、虚拟世界和基于网络的高质量媒体应用，如高清和超高清IPTV。随着100 Gbps以太网的商用，研究人员正在通过研究解决方案来关注1 Tbps传输，以实现可以在动态网络环境中部署的每波长信道100 Gbps和更高的比特率。光正交频分复用（O-OFDM）是一种有前途的解决方案，用于每信道100 Gbps及以上的高比特率传输。它可以利用多级调制方案;实现传输损伤的有效补偿以及传输信道的数据速率和传输格式的自适应。这些特点使得O-OFDM技术成为未来需要动态带宽分配的光互联网的一个有吸引力的解决方案。PATRON方案结合了多级调制的优点，光OFDM多址接入（O-OFDMA）概念和网络元件可编程性，并且提出了一种先进的可编程光发射机和接收机，其能够以动态O-OFDMA通信网络传输具有不同比特率和不同调制格式的不同用户数据。OFDMA核心网。该项目的研究创新是：1-设计和实现可附接到商用电子边缘路由器或光交叉连接并且构成O-OFDMA网络的边缘或核心路由器的可编程O-OFDMA发射机和接收机。2-通过提出能够将来自城域网/接入网的真实的时间数据映射到核心O-OFDMA网络中的不同波长信道处的高速子载波的新颖发射机/接收机，在核心光网络中部署和适配O-OFDMA技术。所提出的方法能够在波长和子载波级别上实现具有精细粒度的需求和可编程网络划分和带宽分配，发射机/接收机该项目的主要成果将是实现支持上述功能的可编程O-OFDMA发射机和接收机，并将在实验室试验中进行演示和验证。PATRON项目的成果可能使网络运营商能够将其网络划分为多个部分，每个部分具有不同的带宽和QoS能力。划分标准，如带宽和QoS可以根据用户或应用程序的要求进行定义。该建议旨在打开一个新的研究领域的主要研究者（PI）内联与高性能网络组（HPNG）在埃塞克斯大学的当前活动。. PATRON的成果将使PI能够在两个方面推进HPNG丰富的产品组合：1-基于光OFDM技术的未来核心光网络的高速光传输，以及2-基于光OFDMA技术的未来互联网的可编程和应用软件光网络。这将使PI通过进一步开发使用O-OFDMA网络技术的光核心网络基础设施划分的新概念来建立自己的独立研究领域。

Today's telecom operators are facing an increasing need to provide users with dynamic and high-capacity network connectivity services. This is mainly driven by deployment of the FTTx technologies and the emergence of ever more bandwidth demanding, dynamic and heterogeneous e-services such as 3D games, virtual worlds, and network based high quality media applications such as HD and UHD IPTV.As 100 Gbps Ethernet is becoming commercially available, researchers are focusing on 1Tbps transport by investigation solutions for achieving bit rates at 100Gbps and beyond per wavelength channels which can be deployed in a dynamic network environment. A promising solution for transmission of high bit rate at 100Gbps and beyond per channel is optical orthogonal frequency division multiplexing (O-OFDM). It can take advantage of multi-level modulation schemes; enable the efficient compensation of transmission impairments and also adaptation of data rate and transmission format of the transmission channel. This features make the O-OFDM technology an attractive solution for future optical Internet where dynamic bandwidth allocation is requiredThe PATRON proposal combines advantage of multi-level modulations, Optical OFDM multiple Access (O-OFDMA) concept and network elements programmability and proposes an advanced programmable optical transmitter and receiver capable of transmitting different user data with different bit rates and different modulation format in a dynamic O-OFDMA core network. The research novelties of this project are:1- Design and implement a programmable O-OFDMA transmitter and receiver that can be attached to a commercial electronic edge router or optical cross connect and constitute edge or core router of an O-OFDMA network.2-Deployment and adaptation of O-OFDMA technology in core optical networks by proposing a novel transmitter/receiver capable of mapping real time data from metro/access network into high speed subcarriers at different wavelength channels in a core O-OFDMA network3- Core network programmability through on-demand and programmable network partitioning and bandwidth allocation with fine granularity at wavelength and subcarrier level enabled by the proposed transmitter/receiverThe major outcome of this project will be an implementation of a programmable O-OFDMA transmitter and receiver supporting the above functionalities, which will be demonstrated and validated in a lab trial.The outcome of PATRON project can potentially enable network network operators to partition their network to several segments, each with different bandwidth and QoS capability. The partitioning criteria such as bandwidth and QoS can be defined based on user or application requirementsThis proposal aims to open a new field of research for the Principle Investigator (PI) inline with the current activities within High Performance Networking Group (HPNG) in University of Essex. . The outcomes of PATRON will enable the PI to advance the HPNG rich portfolio in two dimensions: 1- high-speed optical transport for future core optical network based on optical OFDM technology and 2- programmable and application-ware optical networking for future Internet based on optical OFDMA technology. It will enable the PI to build his own independent research field by further developing the novel concept of optical core network infrastructure partitioning using O-OFDMA networking technology.