CIF: Small: Cooperative Interference Management-A Fundamental Study

干扰是无线介质的基本特征，也是无线网络工程中的主要性能瓶颈。然而，以干扰的形式表现出来的无线介质的广播性质也可以是伪装的益处。它允许多个节点接收公共信号，并产生合作的潜力。到目前为止，关于广播方面的许多基础研究工作都分别解决了这两个方面（干扰和合作）。本计画研究干扰管理与合作在一个共同的环境与整体的方式。在这项工作中进行的研究（a）寻找新的沟通策略，利用广播的优势，同时尽量减少其干扰的性质;（B）寻找识别工程环境中，新的沟通策略提供最大的增益超过传统的方法;以及（c）期望将新的基本外部边界（超出割集的边界）表征为协作和干扰共存的可靠网络通信的速率。这些目标是通过从无线网络的简单（但规范）模型开始来解决的，该模型在三个公式下具有两个单播业务，这三个公式覆盖无线网络中的广泛问题：（i）合作网络，例如蜂窝网络;（ii）竞争网络或具有受限合作的网络，例如Wi-Fi;以及（iii）涉及认知无线电的异构网络。

Interference is a fundamental feature of the wireless medium and a major performance bottleneck in the engineering of wireless networks. However, the broadcast nature of the wireless medium which manifests itself in the form of interference can also be a benefit in disguise. It allows multiple nodes to receive a common signal and generates the potential for cooperation. Much of the fundamental research effort on the broadcast aspect so far has addressed these two aspects (interference and cooperation) separately. This project studies interference management and cooperation in a common context and a holistic manner.The research conducted in this effort (a) looks for novel communication strategies that harness the broadcast advantage while minimizing its interfering nature; (b) looks to identify engineering contexts where the novel communication strategies provide the most gain over traditional approaches; and (c) looks to characterize novel fundamental outer bounds (beyond the cut-set ones) to rates of reliable network communication where cooperation and interference coexist. These goals are addressed by starting out with simple (but canonical) models of wireless networks featuring two unicast traffic under three formulations that cover a wide range of issues in wireless networks: (i) cooperative networks such as cellular networks, (ii) competitive networks or networks with restricted cooperation such as Wi-Fi, and(iii) heterogenous networks involving cognitive radios.