Cooperative REceive-DIversiTy in Wireless Networks:A Stochastic Geometry Approach

无线网络中的协作接收多样性:一种随机几何方法

• 批准号: 207344935
• 负责人: Professor Dr. Friedrich K. Jondral
• 金额: --
• 依托单位: Institut für Nachrichtentechnik (INT)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/207344935?language=en
• 关键词: Cooperative; REceive; DIversiTy; Wireless; Networks

Recently, interference-limited ad hoc networks gained increasing interest in the wireless network community. It turns out that the spatial configuration of nodes in the network and the medium access strategy are of primary concern, since they are determining the interference situation in the network. This is because, in contrast to interference in time and frequency, interference leakage in space cannot be engineered [3]. Thus, the actual spatial configuration significantly influences network performance.This fact resulted in the research framework called “Stochastic geometry for the analysis and the design of wireless ad hoc networks” [1]. Here, spatial processes are used to model the random locations of nodes. By this, the degree of freedom coming from the unknown spatial configuration is replaced by the choice of an appropriate spatial model. Results in this research field were mainly assuming a simplified network model, in which medium access is uncoordinated and transmissions are noncooperative.This proposal aims at extending this research field by studying coordination of medium access to avoid excessive interference and cooperation using relaying or network coding in order to increase coverage and throughput in interference-limited ad hoc networks. In this project, it is mandatory to model and to analyze the effects of coordination and cooperation in interference-limited ad hoc networks by means of stochastic geometry, since no specific network topology must be assumed and, hence, ubiquitous benchmarking of coordination and cooperation strategies becomes possible.

近年来，干扰受限的自组织网络在无线网络领域获得了越来越多的关注。事实证明，网络中节点的空间配置和介质访问策略是主要关注的，因为它们决定了网络中的干扰情况。这是因为，与时间和频率上的干扰相比，空间上的干扰泄漏无法设计[3]。因此，实际的空间配置会显著影响网络性能，这一事实导致了被称为“Stochastic geometry for the analysis and the design of wireless ad hoc networks”的研究框架[1]。在这里，空间过程被用来模拟节点的随机位置。由此，来自未知空间配置的自由度被合适的空间模型的选择所取代。在这一研究领域的成果主要是假设一个简化的网络模型，其中介质访问是不协调的，传输是noncooperatives.This建议的目的是扩展这一研究领域，通过研究协调的介质访问，以避免过多的干扰和合作，使用中继或网络编码，以增加覆盖范围和吞吐量的干扰限制的ad hoc网络。在这个项目中，它是强制性的建模和分析的影响，在干扰有限的ad hoc网络中的协调与合作的随机几何，因为没有特定的网络拓扑结构必须假设，因此，无处不在的基准的协调和合作策略成为可能。