Joint Performance Optimization of Wireless Networks and Control Systems

无线网络和控制系统的联合性能优化

• 批准号: 0140700
• 负责人: Stephen Boyd
• 金额: $ 15万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0140700&HistoricalAwards=false
• 关键词: Joint; Performance; Optimization; Wireless; Networks

Joint Performance Optimization of Wireless Networks and Control SystemsCurrent control technology is not well suitedto operation over a packet based network, and conversely,most networks are not optimized for control applications. Moreover, critical network performance parameters that affect controlsystem performance, such as bit ratesand delay and packet loss statistics, depend on variouschoices made in the network, such as powers allocated to wirelesstransmitters, bandwidths or time-slot fractions allocated to channels, and routing methods.So in addition to the challenge of working out how a controlsystem can be made to work in a packet-based networked environment, we alsohave the challenge of working out how the network should be configured, or operated, so as to improve control system performance.This proposal addresses two fundamental issues that arise.Neither solves the whole problem, but each addresses a critical issue.The first topic involves joint optimization ofa controller and critical communication and networkparameters such as transmit powers, packet routing, andbandwidth and time-slot allocation. To simplify this problem, only the affects of thesenetwork parameters on bit rates, hence quantization noise, is considered. The second topic considered issimultaneous routing and resource allocation for wirelessdata networks.This is the problem of jointly finding an optimal setof flows and communication resources that maximize the performance ofthe network, with respect to some objective such as optimalcontrol system performance.Here we hope to develop algorithms to dynamically allocatecommunication resources (such as transmit powers, bandwidth)and simultaneously optimize routing decisions.

无线网络和控制系统控制技术的联合性能优化在基于数据包的网络上不适合操作，相反，大多数网络均未针对控制应用进行优化。 此外，影响控制系统性能的关键网络性能参数（例如比特速率，延迟和数据包损耗统计数据）取决于网络中所做的各种选择，例如分配给无线发射器，带宽或分配给通道和路由方法的时间段馏分。因此，除了确定如何在基于数据包的网络环境中工作的控制系统如何工作的挑战之外，我们还挑战了如何配置或操作网络，以提高控制系统性能。该提案解决了出现的两个基本问题。尚未解决整个问题，但每个问题都解决了一个关键问题。第一个主题涉及控制器的联合优化以及关键的沟通以及网络参数，例如传输权力，数据包路由，bandwidth和bandwidth and bandwidth and Time Slot分配。为了简化此问题，仅考虑了本网络参数对比特率的影响，因此才考虑量化噪声。 第二个主题考虑了无线数据网络的Issirultanise路由和资源分配。这是共同找到最佳的setof流量和通信资源，以最大程度地提高网络的性能，相对于某些客观，例如OptimalControl System。动态分配分配资源（例如传输功率，带宽）和同时优化路由决策的算法。