子波长粒度灵活光网络的智能物理层传输技术研究

项目名称： 子波长粒度灵活光网络的智能物理层传输技术研究

项目编号： No.61471088

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 许渤

作者单位： 电子科技大学

项目金额： 85万元

中文摘要： 支持子波长粒度的灵活光网络是未来光网络的发展趋势，其实现要求物理层能够依据网络状态完成灵活的配置。本项目突破了传统技术仅使用网络层当前状态的限制，提出了灵活光网络的智能物理层传输技术的概念，其核心是将光纤传输技术与多载波协作通信相结合，并同时使用网络层和物理层状态的动态信息及其预测实现物理层传输技术的智能化选择。为了系统研究和掌握智能物理层传输技术，项目将首先研究支持智能化的物理层传输技术，包括相干光突发接收、光调制方式识别等。其次，突破单信道的限制，研究多载波协同通信传输技术，重点是子载波协同编码和多用户检测技术。最后，基于物理层和网络层的状态描述，以上述物理层传输技术为基础，重点研究智能化物理层的实现架构，以及基于网络状态及其动态预测的物理层智能选择方法。物理层传输技术的智能化，有望解决网络动态变化对物理层传输性能的不利影响，在提高网络容量的同时，大大增强灵活光网络的稳定性和可靠性。

中文关键词： 光传输系统；光传输调制；相干光通信；多载波传输；灵活光网络

英文摘要： Elastic optical network with sub-wavelength granularity is the trend in development for future optical networks. Its implementation requires that the physical layer allows flexible configuration according to the network state. Following this requirement, this project proposes the concept of intelligent physical-layer transmission technique. The key of intelligent physical layer transmission technique is to break through the limit of the conventional configurable physical layer which uses only the current state from the network layer. The dynamic state information plus its prediction from both the network layer and the physical layer are used as the basis for making intelligent choice on the transmission techniques. To achieve the goal of a systematic research and mastering of intelligent physical layer transmission technique for elastic optical networks, this project will start with research on physical layer transmission techniques which can support intelligence, including optical coherent burst-mode receiving techniques, identification on optical modulation schemes etc. Nextly, to break through the limit from single channel, this project will study multi-carrier cooperative communication techniques with a focus on cooperative coding and multiuser detection among multi-carriers. Fonally, based on the state description of both the physical layer and the network layer and following the above study on the possible physical transmission techniques, this project will study the general framework for achieving intelligent physical layer, and the intelligent physical layer selection methods based on state information and its prediction from both the physical layer and the network layer. The intelligence for physical layer is a promising way to solve the problem from the network dynamic change on the transmission performance of the physical layer, thus increasing the tranmission capacity and greatly improving the stability and reliability for elastic optical networks.

英文关键词： Optical fiber communication;Optical modulation;Coherent optical communication;Multi-carrier transmission;Elastic optical networks