摘要
研究工业无线通信可靠性问题。工业无线通信环境恶劣,可靠性难以满足现场需求;现场仪表通信功能有限,缺少有效的通信可靠性改进方法。针对这种情况,提出一种优化重传方法,在现有资源和通信调度模式下,有效提高工业多跳无线通信可靠性。首先建立多跳无线通信链路可靠性优化模型,然后对优化模型进行转化,提出适于应用的优化方法。进而,研究了有冗余路由的多跳无线通信链路重传时的情况。通过数学分析和数值仿真,证明了优化方法有效提高了工业无线通信可靠性。
In this paper, we focus on improving reliability of industrial wireless communication （IWC）. The reliability in IWC cannot meet the requirements and specifications for application in industrial harsh environmental conditions. The adapted Strategies are absent, which is mainly attributed to poor performance of communication in field devices. In consideration of the fact, an optimal retransmission strategies employing conventional scheduling communication was proposed based on available resource, which can improve communication reliability over Multi - Hop IWC. A Multi - Hop IWCL model for optimizing reliability was set up at first, then the problem was converted into a solution suitable for engineering application. Following that, the similar problems over Multi - Hop IWCL with router redundancy were studied. Numerical simulation achieved the expectation result that the retransmission scheduling policy improves reliability obviously.
出处
《计算机仿真》
CSCD
北大核心
2012年第12期123-126,166,共5页
Computer Simulation
基金
国家自然科学基金重点项目(60934003)
住建部科技项目(2011-K1-56)
江苏省建设系统科技项目(JS2009ZD11)
关键词
工业无线通信
可靠性
重传
优化
Industrial wireless communication
Reliability
Retransmission
Optimizing
