无线HART网络中的高可靠资源分配策略

发布时间：2018-01-14 11:42

本文关键词：无线HART网络中的高可靠资源分配策略　出处：《小型微型计算机系统》2014年12期 　论文类型：期刊论文

【摘要】：Wireless HART是一种高可靠的网状无线传感器网络通信协议.TDMA和FHSS技术增强了Wireless HART网络的抗干扰能力;其独特的图路由模型保留了网络中丰富的冗余路径.描述了如何为Wireless HART网络中的每一条链路分配时隙和安排信道,在避免冲突的前提下,提高网络性能,并且提出一种基于图路由的资源调度算法.我们的调度策略结合Wireless HART网络的路由选择算法和多跳重传机制,大大提高了网络的强健性,同时保证了网络具有较高的吞吐率.此外,考虑到网络通信的实时性,本文策略合理地安排链路的次序,充分利用了网络资源,有效地减少网络延时.通过性能分析表明我们的资源调度策略使网络性能接近最优.与目前已有的Wireless HART调度算法相比较,我们的调度策略具有高可靠性和低延时等优势.
[Abstract]:Wireless HART is a network communication protocol for wireless sensor networks with high reliability.TDMA and FHSS Wireless HART technology to enhance the anti-interference ability of the network; its unique graph routing model retains a redundant path rich network. Describes how to allocate time slots and arrange each link Wireless channel in HART network, on the premise of to avoid conflict, improve the network performance, and proposes a resource scheduling algorithm based on graph routing. Our scheduling strategy combined with Wireless HART network routing algorithm and multi hop retransmission mechanism, greatly improves the robustness of the network, at the same time to ensure that the network has higher throughput. In addition, taking into account the real-time network communication, the strategy of reasonable arrangements for the order link, make full use of cyber source, effectively reduce the network delay. The performance analysis shows that our resource scheduling The strategy makes the network performance close to the optimal. Compared with the existing Wireless HART scheduling algorithm, our scheduling strategy has the advantages of high reliability and low delay.

【作者单位】：清华大学深圳研究生院;清华大学电子工程系;
【基金】：国家科技重大专项项目(2011ZX03004-001-01)资助
【分类号】：TN929.5;TP212.9
【正文快照】： 1引言Wireless HART标准源于HART(Highw ay AddressableRemote Transducer),在2007年9月由HART通信基金会公布,主要应用于工业进程自动化控制[1].Wireless HART标准针对实际的工业应用环境,采取了一系列的技术措施来满足实时性和高可靠性的要求.Wireless HART物理层基于IEEE80

【参考文献】