NeTS-WN: Collaborative Research: Interference Management and Cooperation in Wireless Networks: A Modern View

无线通信区别于有线通信的两个重要特征是：无线链路的时变性和无线传输的广播性。在过去的十年里，人们从信息论的角度对时变有了新的基本理解。这种理解导致了关于无线系统设计的观点发生了根本性的转变，不仅是在物理层，而且在更高层。相比之下，在对无线链路广播性质的基本理解方面取得的进展要慢得多。当前无线网络中实现的处理干扰和协作的大多数技术都是随机的。在这个项目中，我们通过从处理无线链路的时变性质的成功中获得线索来关注无线链路的广播性质：无线通信的真正进步来自于将基本的和信息论的理解综合到网络思想中。我们建议(A)获得关于如何最优地管理干扰和实现协作的基本理解，(B)建立物理层的抽象，以获取最佳干扰管理和协作的性能益处，以及(C)确定这样的最佳技术比目前的技术产生重大改进的情况。我们预计这项研究议程将产生更广泛的影响，以影响下一代无线网络中处理干扰和合作的设计规则。

Two important features distinguish wireless communication from wireline communication: the time-variations of the wireless links and the broadcast property of wireless transmissions.In the past decade, a new fundamental understanding of time-variations from an information theoretic point of view has developed. This understanding has led to radical shifts in points of view regarding wireless system design, not only at the physical layer but also athigher layers. In contrast, the progress in a fundamental understanding of the broadcast nature of wireless links has been far slower. Most of the techniques that exist as implemented in current wireless networks to deal with interference and cooperation are ad hoc.In this project we focus on the broadcast nature of the wireless link by taking a cue from the success in dealing with the time varying nature of the wireless link: true progress in wireless communication comes from a synthesis of a fundamental and information theoretic understanding into networking ideas.We propose to (a) obtain a fundamental understanding of how to optimally manage interference and achieve cooperation, (b) build an abstraction of the physical layer that captures the performance benefits of optimal interference management and cooperation, and (c) identify scenarios in which such optimal techniques yield significant improvement beyondcurrent techniques. We envision the broader impact of this research agenda to influence the design rules by which the interference and cooperation are dealt with in next generation of wireless networks.