EAGER: Collaborative Research: CIF: Exploring the Fundamentals of Multihop Multiflow Wireless Networks

虽然目前的蜂窝网络基本上是基于一对多和多对一的单跳子网，并通过谨慎的集中式资源规划来应对小区间干扰，但未来的无线网络必须考虑以用户部署和用户运营的基础设施为特征的异质环境，在这些环境中，多流和多跳将发挥越来越重要的作用。事实上，这样的网络预计将为数万亿美元的电子商务打开大门，同时也向公众提供大量易于获取的知识。因此，发展对多跳多流无线网络的基本理解在此时至关重要。这一探索性项目将寻求通过获得其近似意义上的信息理论能力来发现此类网络的基本原理。预计对于这样的网络，可伸缩和可扩展的解决方案是可能的，范围从包括两跳和两个流的看似简单的解决方案到涉及多跳和具有任意连接的两个以上的流的表面上更复杂的解决方案。在这样的演示中，将使用多个指标。这些度量在高信噪比机制中以精度的递增顺序是(A)对网络的可用信令(时间/频谱/空间)维度的基本限制，(B)对可用信令和信号电平维度的基本限制，以及(C)独立于信道参数的(通用)恒定比特数内的容量。

While current cellular networks are based essentially on one-to-many and many-to-one single-hop subnets and cope with inter-cell interference by careful centralized resource planning, future wireless networks must consider heterogeneous environments characterized by user-deployed and user-operated infrastructure in which multiple flows and multiple hops will play an increasingly relevant role. Indeed, such networks are expected to open doors to trillions of dollars of e-commerce, while also providing vast amounts of easily accessible knowledge to the public. Developing a fundamental understanding of multihop multiflow wireless networks is therefore critically important at this time.This exploratory project will seek to discover the fundamentals of such networks by obtaining their information theoretic capacity in an approximated sense. It is expected that scalable and extensible solutions are possible for such networks ranging from the seemingly simple ones involving two hops and two flows to apparently more complex ones involving multiple hops and more than two flows with arbitrary connectivity. In so demonstrating, multiple metrics will be employed. These metrics in the increasing order of accuracy in the high signal-to-noise ratio regime are (a) the fundamental limit on the available signaling (temporal/spectral/spatial) dimensions of the network, (b) the fundamental limit on the available signaling and signal-level dimensions, and (c) the capacity to within a (universal) constant number of bits independently of channel parameters.