GOALI: Intelligent Channel Management in 802.11n Networks

GOALI：802.11n 网络中的智能通道管理

• 批准号: 1032981
• 负责人: Elizabeth Belding
• 金额: $ 5.1万
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1032981&HistoricalAwards=false
• 关键词: GOALI; Intelligent; Channel; Management; 802.11n

The newly ratified IEEE 802.11n standard brings a number of new possibilities in the quest for attaining wire-like transmission speeds. The number of subchannels, the option for channel bonding, and the use of multiple antennas and MIMO technologies result in a vast variety of potential transmission strategies. Because of the number of variables, selecting the 'right combination' given the offered load, interference patterns and environmental noise is a complex undertaking. A naïve channel assignment strategy will result in sub-optimal performance due to unnecessary channel contention. This work addresses a number of open questions in the quest to develop a channel assignment strategy for 802.11n that maximizes spatial reuse. In particular, the work seeks to answer to the following questions: (i) how should MIMO transmission schemes, channel bonding, and DFS considerations best be integrated into a channel management solution to maximize performance?; (ii) how can the gains achieved by MIMO systems best be utilized to influence the channel management system?; and (iii) how should metrics that influence these decisions be obtained and redefined for 802.11n systems? The project will be facilitated through a partnership between UC Santa Barbara and HP Laboratories. Outcomes of the work will include a set of solutions for dynamically monitoring current channel state, and an integrated channel management solution that utilizes monitoring output to achieve high-speed, long transmission range communication in 802.11n systems.

新批准的IEEE 802.11n标准为实现类似有线的传输速度带来了许多新的可能性。子信道的数量、信道绑定的选项以及多天线和MIMO技术的使用导致了各种各样的潜在传输策略。 由于变量的数量，在给定负载、干扰模式和环境噪声的情况下选择“正确的组合”是一项复杂的任务。 由于不必要的信道竞争，幼稚的信道分配策略将导致次优性能。 这项工作解决了一些悬而未决的问题，在寻求发展的802.11n的信道分配策略，最大限度地提高空间复用。 特别是，这项工作试图回答以下问题：（i）如何将MIMO传输方案，信道绑定和DFS考虑因素最好地集成到信道管理解决方案中，以最大限度地提高性能？(ii)如何最好地利用MIMO系统获得的增益来影响信道管理系统？以及（iii）对于802.11n系统，应该如何获得和重新定义影响这些决策的度量？该项目将通过加州大学圣巴巴拉分校和惠普实验室之间的合作关系来促进。 这项工作的成果将包括一套动态监控当前信道状态的解决方案，以及一个集成的信道管理解决方案，该解决方案利用监控输出来实现802.11n系统中的高速、长传输范围通信。