Collaborative Research: SWIFT: Wideband Spectrum Coexistence Enabled by Photonic Circuits: Cross-Layer Design and Implementation

合作研究：SWIFT：光子电路实现宽带频谱共存：跨层设计和实现

基本信息

批准号：
2128451
负责人：
Wade Trappe
金额：
$ 17万
依托单位：
Rutgers University New Brunswick
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-01 至 2024-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2128451&HistoricalAwards=false
关键词：
Collaborative Research SWIFT Wideband Spectrum

项目摘要

Evolving communication systems rely on using increasingly higher frequencies for larger channel bandwidths. The increased channel capacities enabled by higher carrier frequencies provide high speed communication for commercial and active users, however, these benefits do not extend to passive users, such as radio astronomy. The focus of the proposed effort is to create a framework for spectrum coexistence that is beneficial for both active and passive users. Instead of simply switching to higher and undeveloped frequencies - which passive users cannot - the proposed research uses high frequency, optical signal carriers for interference separation, enabling the coexistence of active and passive users at the same time and in the same physical location. The proposed coexistence solution will enable continuous availability of wideband spectrum for passive users, an important requirement for detecting unknown signals, since the bandwidth and the time window for unknown astronomical, atmospheric and geospace signals cannot be manipulated. The proposal involves collaboration between one private and two state universities in New Jersey, and will support education at various levels: for pre-college students, the PIs will develop games and instructive presentations that integrate the explanation of science fundamentals. Undergraduate students will access the evolution of communication technologies through Rowan University’s 8-semester research-based Engineering Clinic program. Commercial applications will be explored through industrial partners within local area of the PI campuses.Since there is a projected increase in interference at both high and low RF frequencies, which will impair the success of both commercial and scientific use of spectrum, it is necessary to develop technologies that will mitigate the interference observed by all users of the radio spectrum, ultimately allowing better coexistence between the wide range of applications dependent on radio spectrum. The proposed system is implemented by redesigning the hardware and exploring communication protocols at multiple layers. In the physical layer, the photonic system separates a mixed received signal in the congested radio spectrum by upconverting the signal carriers to optical frequencies, providing over 100GHz of bandwidth in a single channel. In the network level, communication protocols are redesigned to enable passive users to continuously access to wideband spectrum and coexist with active users. The network layer protocol will optimize the deployment of the hardware system to minimize the cost of new infrastructures, better share spectrum, and improve communication throughput. The intellectual merit stems from the completely orthogonal approach proposed to address the challenges of radio spectrum, and the seamless integration of hardware innovation with communication protocols. By harnessing the unique properties of optical carriers, the photonic system processes analog signals before digitization, which eliminates both the current bandwidth limit and the resolution limit. The hardware innovation creates unprecedented resources for communication applications. The photonic system functions as a platform that provides new resources for both the existing and emerging spectrum sharing methods, specifically, dynamic spectrum allocation, interference alignment, etc. With a multi-layer design, the proposed system will advance the understanding of spectrum usage by enabling conexistence of systems with diverse power levels and large bandwidths.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

不断发展的通信系统依赖于较大的通道带宽使用越来越高的频率。较高的载体频率启用的通道容量增加为商业和活跃用户提供了高速通信，但是，这些好处并没有扩展到被动用户，例如射电天文学。拟议的工作的重点是为频谱共存创建一个对活跃用户和被动用户有益的框架。拟议的研究使用高频，光学信号载体进行干扰分离，而不是简单地切换到更高和未开发的频率（哪些被动用户不能），从而使主动用户和被动用户同时和同一物理位置的共存。所提出的共存解决方案将使被动用户连续可用宽带光谱，这是检测未知信号的重要要求，因为无法操纵带宽和未知天文学，大气和地形信号的时间窗口。该提案涉及新泽西州一所私立大学和两所州立大学之间的合作，并将支持各个层面的教育：对于大学前学生，PIS将开发游戏和具有启发性的演讲，以整合科学基础的解释。本科生将通过罗文大学的基于8年的工程诊所计划访问通信技术的发展。商业应用将通过PI校园地区内的工业伙伴进行探索。由于预计在高和低RF频率下的干扰会增加，这将损害商业和科学使用频谱的成功，因此有必要开发技术来缓解广泛范围的范围范围范围范围范围范围更高的范围，从而降低了频谱的干扰。提出的系统是通过重新设计硬件并在多层探索通信协议来实现的。在物理层中，光子系统通过将信号载体上转换为光学频率，将混合接收的信号分开，从而在单个通道中提供超过100GHz的带宽。在网络级别中，对通信协议进行重新设计，以使被动用户能够继续访问宽带网络层协议将优化硬件系统的部署，以最大程度地降低新基础架构的成本，更好的共享频谱并改善通信吞吐量。智力优点源于提出的完全正交的方法，以应对无线电频谱的挑战，以及硬件创新与通信协议的无缝集成。通过利用光载体的唯一特性，光子系统在数字化前处理模拟信号，从而消除了当前带宽极限和分辨率限制。硬件创新为通信应用程序创造了前所未有的资源。光子系统是一个平台，可为现有和新兴的频谱共享方法提供新资源，具体，特别是动态频谱分配，干扰一致性等。通过多层设计，该系统将通过促进系统的支持和大型blandths的启用，并通过促进satter decters nection and decters n s n s n s n s n s.基金会的智力优点和更广泛的影响审查标准。