U.S.-Jordan Cooperative Research: Integrated Design of Channel Codes and Bandwidth Management Schemes for Optical Networks

0423277 KrunzDescription：该项目支持由亚利桑那州图森市亚利桑那大学电气和计算机工程系Marwan Krunz博士和约旦伊尔比德约旦科技大学电气工程系Mohammad Banat博士合作的项目。他们计划在国家科学基金会资助的项目范围内包括一个国际合作部分：ITR--下一代光网络的前向纠错码和协议(NSF Grant ANI-0325979)。本项目的目标是开发一种光网络中联合差错控制/带宽管理的框架。该框架针对密集波分复用(DWDM)光纤系统，该系统已成为局域网、城域网和广域网的主要传输技术。在DWDM中，光信号的质量受到各种信道非线性和自发辐射噪声的影响，这些都需要定制的前向纠错(FEC)技术。网络的异构性进一步加剧了问题，其形式为不同波长信道的可变传输速度和同一网络内不同节点处的不同交换能力。该方法基于将创新的前向纠错方案集成到自适应网络策略的设计中。Banat教授将他在FEC和光通道调制技术方面的专业知识带到了这个项目中。他之前曾致力于光通道中的相位噪声表征，并设计适当的FEC码来减轻此类噪声的影响。他还研究了使用伪随机光学跳频在SCM/WDMA网络中减少光学拍频干扰(OBI)的技术。这种专业知识将有助于表征其他形式的非线性(例如，群速度色散、偏振模色散等)。为光通道设计BIBD码。此外，Banat教授在光信道的扩频方案(例如，光跳频)方面的专业知识在当前研究中将有助于在具有不同节点的网络中研究适当的交换技术。网络管理技术的研究将由Krunz进行，他的主要专长在于网络领域。范围和更广泛的影响：拟议的项目将作为培训亚利桑那大学(UA)研究生的工具，仅通过与来访的科学家一起参与研究。PI之前从Just招聘了几名优秀的硕士毕业生，他们目前在他的指导下在UA攻读博士学位。在该项目的支持下开发的软件将向广大研究界提供。该项目所涵盖的主题将纳入加州大学和司法部的研究生课程。

0423277 KrunzDescription: This project supports a cooperative project by Dr. Marwan Krunz, Department of Electrical and Computer Engineering at the University of Arizona, Tucson, Arizona and Dr. Mohammad Banat, Department of Electrical Engineering, Jordan University of Science and Technology, Irbid, Jordan. They plan to include an international collaboration component in the scope of the NSF funded project: ITR- Forward Error Correction Codes and Protocols for Next-Generation Optical Networks (NSF Grant ANI-0325979). The goal of this project is to develop a framework for joint error control/bandwidth management in optical networks. This framework is aimed at dense wavelength division multiplexing (DWDM) fiber-optic systems, which have become the predominant transport technology for local, metropolitan, and wide area networks. In DWDM the quality of the optical signal is impacted by various channel nonlinearities and spontaneous emission noise that require tailored forward error correction (FEC) techniques. The problem is further exacerbated by the heterogeneity of the network in the form of variable transmission speeds for different wavelength channels and varying switching capabilities at different nodes within the same network. The approach is based on integrating innovative FEC schemes into the design of adaptive network strategies. Professor Banat brings to the project his expertise on FEC and modulation techniques for optical channels. He has previously worked on phase-noise characterization in optical channels and on designing appropriate FEC codes for mitigating the impact of such noise. He has also conducted research on optical beat interference (OBI) reduction techniques in SCM/WDMA networks using pseudorandom optical frequency hopping. This expertise will be useful in characterizing other forms of nonlinearities (e.g., group velocity dispersion, polarization mode dispersion, etc.) and designing BIBD codes for the optical channel. Furthermore, Professor Banat expertise on spread spectrum schemes for optical channels (e.g., optical frequency hopping) will be beneficial in the current research when investigating appropriate switching techniques in a network with heterogeneous nodes. The research on networking management techniques will be conducted by Krunz, whose main expertise lies in the area of networking. Scope and broader impacts: The proposed project will serve as a vehicle for the training of graduate students at the University of Arizona (UA) and JUST through participation in research with the visiting scientists. The PI has previously recruited several outstanding M.S. graduates from JUST, who are currently pursuing their Ph.D. work at UA under his supervision. Software developed under the support of this project will be made available to the research community at large. The topics covered in the project will be integrated into the curricula of graduate courses at UA and JUST.