CIF: Small: Interference Modeling and Management for Heterogenous Networks

CIF：小型：异构网络的干扰建模和管理

• 批准号: 1218338
• 负责人: Robert Heath
• 金额: $ 31.33万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1218338&HistoricalAwards=false
• 关键词: CIF; Small; Interference; Modeling; Management

Cellular system infrastructure deployment is becoming more heterogeneous including random deployment locations and more kinds of infrastructure. Using a mixture of macro, pico, and femto base stations, as well as fixed relay stations and distributed antennas, heterogeneous networks have the potential to break through the capacity bottleneck. While holding great promise, this potential has yet to be realized since the new infrastructure creates a different and challenging distributed interference environment.This research develops new mathematical tools to enable a simplified analysis of cellular systems exploiting concepts from stochastic geometry and random shapes, to model the impact of random interference source locations, accounting for important environmental considerations. It uses these tools to analyze and develop interference management strategies for different proposed technologies including small cell networks with heterogeneous interference and large cell networks with many antennas. A main theme in the analysis and algorithms is the use of antennas to avoid, cancel, align, and otherwise mitigate the effects of interference -- even with limited coordination possible among transmitters.Broader impacts of the proposed theory and algorithms are expected in diverse areas. The mathematical tools and fundamental theory will impact the understanding and design of communication systems taking into account the network geometry. The signal processing algorithms will pave the way for a new understanding of multiple antenna communication techniques. Industry impact will occur through the WICAT / Wireless Networking and Communications Group industrial affiliates incorporating research results into their wireless networking technologies. The project will foster the training of graduate students in course projects and will reach out to the community through public demonstrations.

蜂窝系统基础设施部署变得更加异构，包括随机部署位置和更多种类的基础设施。混合使用宏基站、微微基站和毫微微基站以及固定中继站和分布式天线，异构网络有可能突破容量瓶颈。虽然前景广阔，但这种潜力尚未实现，因为新的基础设施创造了一个不同的、具有挑战性的分布式干扰环境。这项研究开发了新的数学工具，利用随机几何和随机形状的概念，对蜂窝系统进行简化分析，以进行建模随机干扰源位置的影响，考虑到重要的环境因素。它使用这些工具来分析和开发针对不同提议技术的干扰管理策略，包括具有异构干扰的小型蜂窝网络和具有许多天线的大型蜂窝网络。分析和算法的一个主题是使用天线来避免、消除、对齐和以其他方式减轻干扰的影响——即使发射机之间的协调可能有限。预计所提出的理论和算法将在不同领域产生更广泛的影响。考虑到网络几何形状，数学工具和基础理论将影响通信系统的理解和设计。信号处理算法将为对多天线通信技术的新理解铺平道路。行业影响将通过 WICAT/无线网络和通信集团工业附属机构将研究成果融入其无线网络技术中来实现。该项目将促进研究生课程项目的培训，并将通过公开示范接触社区。