Geometric Analysis of Large Wireless Networks: Interference, Outage, and Delay

大型无线网络的几何分析：干扰、中断和延迟

• 批准号: 0728763
• 负责人: Martin Haenggi
• 金额: $ 20万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-15 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0728763&HistoricalAwards=false
• 关键词: Geometric; Analysis; Large; Wireless; Networks

Geometric Analysis of Large Wireless Networks:Interference, Outage, and DelayMartin Haenggi, University of Notre DameAbstract:Large wireless systems, in particular ad hoc and sensor networks, have great potential for numerous applications. They have been the subject of intense investigation over the last decade. Despite these efforts, many of their fundamental properties are still not well understood, and it is unknown how to design network protocols in an optimum fashion. Important progress has been made in determining the capacity scaling behavior of these systems, but the asymptotic nature of these results severely restricts their applicability to practical networks. This project complements such scaling studies by aiming at a precise characterization of certain performance metrics, including reliability and delay.Further, some of the standard modeling assumptions, such as the uniformly random node distribution are questioned, and existing results are extended to other node distributions that better reflect real networks with interacting nodes.The investigators use a rigorous analytic approach that combines tools from stochastic geometry, point process theory, branching processes, and information theory. Since the network geometry critically affects the interference and signal-to-noise-ratios, an emphasis is put on the geometric properties of the underlying node distribution. The project focuses on several concrete problems in interference characterization, link outage, and the tradeoff between end-to-end delay and outage in large networks with randomly distributed nodes. The objectives are to analytically determine or bound these quantities for general node distributions and to derive guidelines for protocol design from the theoretical insight gained.

大型无线网络的几何分析：干扰、中断和延迟Martin Haenggi，圣母大学摘要：大型无线系统，特别是自组织网络和传感器网络，在众多应用中具有巨大潜力。在过去的十年里，它们一直是密切调查的对象。尽管做出了这些努力，但它们的许多基本属性仍然没有得到很好的理解，并且不知道如何以最佳方式设计网络协议。在确定这些系统的容量扩展行为方面已经取得了重要进展，但这些结果的渐近性质严重限制了它们在实际网络中的适用性。该项目通过旨在精确表征某些性能指标（包括可靠性和延迟）来补充此类扩展研究。此外，一些标准建模假设（例如均匀随机节点分布）受到质疑，并将现有结果扩展到其他节点分布更好地反映具有交互节点的真实网络。研究人员使用严格的分析方法，结合了随机几何、点过程理论、分支过程和信息论的工具。由于网络几何形状严重影响干扰和信噪比，因此重点关注底层节点分布的几何特性。该项目重点关注干扰特征、链路中断以及节点随机分布的大型网络中端到端延迟和中断之间的权衡等几个具体问题。目标是分析确定或限制一般节点分布的这些量，并从获得的理论见解中得出协议设计指南。