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首页> 外文期刊>International journal of ad hoc and ubiquitous computing >Extremal optimisation approach to joint routing and scheduling for industrial wireless networks
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Extremal optimisation approach to joint routing and scheduling for industrial wireless networks

机译：用于工业无线网络的联合路由和调度的极端优化方法

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摘要

Industrial wireless networks (IWNs), different from ad hoc and traditional mesh networks, feature in centralised management architecture and energy-limited devices. In this paper, we propose a technique based on extremal optimisation (EO) approach to solve the joint routing and link scheduling problem in IWNs. After analysing the feasibility of cross-layer optimisation in IWNs, an integer linear programming (ILP) problem in accordance with the characteristics of IWNs, is presented to optimise the real-time performance and the network lifetime. Further, EO is investigated to solve the ILP model, where the fitness assignment strategy, mutation rules and operating process are designed. To our knowledge, it's the first time that EO is applied for scheduling problem in wireless networks. Numerical results show that our approach can achieve real-time communication with improved latency and optimal network lifetime with balanced energy consumption among nodes. And the trade-off between energy consumption and path delay is further demonstrated.
机译：与临时和传统网状网络不同，工业无线网络（IWN）具有集中式管理体系结构和能耗受限的设备。在本文中，我们提出了一种基于极值优化（EO）方法的技术来解决IWN中的联合路由和链路调度问题。在分析了IWN中进行跨层优化的可行性之后，根据IWN的特点提出了整数线性规划（ILP）问题，以优化实时性能和网络寿命。进一步，研究了EO以解决ILP模型，其中设计了适应度分配策略，突变规则和操作过程。据我们所知，这是第一次将EO用于无线网络中的调度问题。数值结果表明，我们的方法可以实现实时通信，并具有改进的延迟和最佳的网络寿命，并且节点之间的能耗平衡。并且进一步证明了能量消耗和路径延迟之间的权衡。

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