面向融合性能的工业无线网络传输机制与协同策略联合设计

Wireless sensor networks have attracted much attention from both the control society and other communities. Applications of wireless sensor networks to industrial control systems while ensuring the reliable and real-time guarantees are the hot topics and deserve deep investigation. This project focuses on the data reliability in data-fusion-oriented industrial applications. A co-design scheme of multiple access scheme and distributed estimation algorithm is proposed for industrial wireless sensor networks (IWSNs) with the aim of reducing the communication delay meanwhile increasing the data reliability. The main contributions of this project are three-fold: 1) We design a non-orthogonal multiple access scheme compatible with the structure of distributed data fusion; 2) A heterogeneous distributed estimation algorithm is proposed for source-limited IWSNs with channel fading, communication noise, and etc.; 3) We propose a joint optimization problem by incorporating the network estimation performance and energy efficiency with constraints derived from the co-design scheme. Consequences of this project can provide basic theoretical and key technical support for the study of data reliability of IWSNs from the viewpoint of data processing and fusion.

无线传感器网络是当前控制与其他多学科领域研究的热点，如何将这一技术应用于工业控制系统满足实时可靠的需求成为目前的热点问题。本项目面向以数据融合为驱动的工业无线网络(Industrial wireless sensor network, IWSN)应用，开展信息可靠性研究，拟从物理层的传输机制和网络层的融合估计进行联合设计和优化，以降低通信时延并提高信息可靠性。重点开展三方面研究内容：1) 设计面向分布式数据融合的非正交多址接入方案；2) 考虑IWSN的信道衰落、通信约束等，设计通信受限的IWSN异构分布式融合估计算法，确保估计性能的有效性；3)解决网络融合性能和能量效率的联合优化问题，反馈设计融合估计的参数定量调整机制。本项目研究成果将会从信息处理和信息融合的角度为IWSN的信息可靠性研究提供理论基础和技术支撑。

无线传感器网络是当前控制与其他多学科领域研究的热点，如何将这一技术应用于工业控制系统满足实时可靠的需求成为目前的热点问题。本项目面向以数据融合为驱动的工业无线网络(Industrial wireless sensor network, IWSN)应用，开展信息可靠性研究，拟从物理层传输机制和网络层融合估计算法进行联合设计和优化，以降低通信时延并提高信息可靠性。重点开展三方面研究内容：1) 设计面向分布式数据融合的非正交多址接入方案；2) 考虑IWSN的信道衰落、通信噪声等约束，设计通信受限的IWSN异构分布式融合估计算法，确保估计性能的有效性；3)解决网络融合性能和能量效率的联优化问题，反馈设计融合估计算法的参数定量调整机制。本项目研究成果将会从信息处理和信息融合的角度为IWSN的信息可靠性研究提供理论基础和技术支撑。