NeTS-WN: Collaborative Research: A Measurement-Driven Physical-Interference-Based Approach for the Design of Mesh Networks

NeTS-WN：协作研究：一种基于测量驱动、基于物理干扰的网状网络设计方法

• 批准号: 0721596
• 负责人: Douglas Blough
• 金额: $ 20万
• 依托单位: Georgia Tech Research Corporation
• 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: 2007-09-01 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0721596&HistoricalAwards=false
• 关键词: NeTS; WN; Collaborative; Research; Measurement

Wireless mesh networks are becoming popular for ubiquitous and low-cost wireless broadband connectivity. However, they, suffer from serious interference problems which limit their capacity. We use TDMA scheduling to address these performance problems. We use a SINR-based physical interference modeling for realism, and various forms of diversities - such as transmit power control, directional antennas, multiple channels, and rates - to maximize performance. We also introduce a measurement-based modeling technique to make the physical interference modeling practical. We support these innovations by experimental studies. Our goal is developing a complete set of algorithms, protocols, and system solutions that target "managed" mesh networks. The protocol solutions include the routing layer and below, and are compatible with existing Inter-networking protocols for the transport layer and up.The project's intellectual merit has the following components: (i) New protocols for TDMA scheduling with diversity and physical interference modeling, (ii) integration of scheduling with routing, (iii) measurement-based modeling of physical interference, and (iv) simulation modeling and testbed experiments to support the protocol innovations.The project contributes to the education and training of graduate students in the two universities -Georgia Tech and Stony Brook University. The project gains leverage from existing international collaborations of PIs with IIT-CNR in Italy and CDAC in India, and strengthens this collaboration. Finally, success in this project means low cost, ubiquitous broadband connectivity. It competes well with WLANs and wired connectivity, and is expected to level the technological playing field.

无线网状网络由于无处不在且低成本的无线宽带连接而变得流行。然而，它们遭受严重的干扰问题，这限制了它们的容量。我们使用TDMA调度来解决这些性能问题。我们使用一个基于SINR的物理干扰建模的现实主义，和各种形式的干扰-如发射功率控制，定向天线，多信道，和速率-以最大限度地提高性能。我们还介绍了一种基于测量的建模技术，使物理干扰建模实用。我们通过实验研究来支持这些创新。我们的目标是开发一套完整的算法，协议和系统解决方案，目标是“管理”网状网络。协议解决方案包括路由层及以下，并与传输层及以上的现有网络间协议兼容。该项目的智力价值有以下几个方面：（i）具有分集和物理干扰建模的TDMA调度的新协议，（ii）调度与路由的集成，（iii）物理干扰的基于测量的建模，该项目为格鲁吉亚理工大学和斯托尼布鲁克大学的研究生教育和培训做出了贡献。该项目利用了项目执行机构与意大利的IIT-CNR和印度的CDAC现有的国际合作，并加强了这种合作。最后，该项目的成功意味着低成本、无处不在的宽带连接。它与无线局域网和有线连接竞争得很好，预计将在技术竞争中占据一席之地。