I/UCRC FRP: Exploiting Self-interference Suppression and Full-duplex Capabilities in Opportunistic Wireless Systems

无线设备在同一信道上实现同时发送和接收（STAR）的能力通常被认为是不可能的，直到最近，几位研究人员已经证明了在经典的静态频谱设置中使用自干扰抑制（SIS）技术组合的全双工（FD）通信的可能性。在该项目中，pi将在机会动态频谱接入（DSA）系统的背景下探索SIS的完全不同的应用场景。该项目预计将对机会无线系统产生重大影响，提高其容量并使其能够支持实时流量。这最终将导致新一代支持fd的无线设备的激增。所提出的技术可以应用于许多情况，包括机会性的超级wifi接入点（例如，由IEEE在其802.11af标准中标准化的白- fi系统），在次要基础上利用蜂窝频段的femto蜂窝，在竞争或共享频谱环境中运行的军用无线电，具有抗干扰能力的卫星无线电等。pi将把他们的研究结果整合到相关的研究生课程中。除了发布结果和开发课程外，项目负责人还将开展一系列教育和外展活动，包括在会议上提供教程和邀请会议，客座编辑DSA系统的FD特刊等。pi还将与BWAC I/UCRC行业合作伙伴合作，在其频谱敏捷无线电平台上演示拟议解决方案的样本。拟议项目的主要成果可能包括：(1)将SIS技术新颖地集成到机会性DSA系统中；（ii）优化的模式选择策略，使一对DSA设备能够根据观察到的信道占用情况、交通状况和SIS功能，在各种通信模式之间动态交替；（iii）考虑到各种非理想情况，在基于能量和签名的传感下，对具有fd功能的DSA链路的关键性能指标进行理论分析和验证；（iv）为具有异构SIS级别的多通道FD-enabled DSA网络制定通道访问和信息交换协议；(v)为具有不同感测和SIS水平的FD-enabled DSA网络建立合作感测机制；以及（vi）用于具有fd能力的机会网络的自适应频谱切换机制。

The ability of a wireless device to achieve simultaneous transmission and reception (STAR) over the same channel has generally been deemed impossible, until recently, where several researchers have demonstrated the possibility of full-duplex (FD) communications using a combination of self-interference suppression (SIS) techniques, in classical static-spectrum settings. In this project, the PIs will explore a completely different application scenario for SIS, in the context of opportunistic dynamic spectrum access (DSA) systems. The project is expected to have big impacts on opportunistic wireless systems, boosting their capacity and enabling them to support real-time traffic. This will ultimately lead to the proliferation of a new generation of FD-capable wireless devices. Proposed techniques can be applied in many contexts, including opportunistic super-WiFi access points (e.g., White-Fi systems, standardized by IEEE in its 802.11af standard), femto cells that utilize cellular bands on a secondary basis, military radios that operate in contested- or shared-spectrum environments, satellite radios with anti-jamming capabilities, etc. PIs will integrate their findings in relevant graduate courses. In addition to results dissemination and curriculum development, PIs will carry out a number of educational and outreach activities, including giving tutorials and invited sessions at conferences, guest-editing special issues on FD for DSA systems, etc. PIs will also collaborate with BWAC I/UCRC industry partners to demonstrate a sample of the proposed solutions on their spectrum-agile radio platforms. Key outcomes of the proposed project might include: (1) novel integration of SIS techniques into opportunistic DSA systems; (ii) optimized mode-selection strategies that enable a pair of DSA devices to dynamically alternate between various communication modes, depending on observed channel occupancy profile, traffic conditions, and SIS capabilities; (iii) theoretical analysis and validation of key performance metrics for an FD-capable DSA link under energy- and signature-based sensing, considering various non-idealities; (iv) a channel access and information exchange protocol for a multi-channel FD-enabled DSA network with heterogeneous SIS levels; (v) a cooperative sensing mechanism for an FD-enabled DSA network with diverse sensing and SIS levels; and (vi) an adaptive spectrum handoff mechanism for an FD-capable opportunistic network.