Stochastic stability analysis for Vehicular Networked Systems with State-dependent bursty fading channels: A self-triggered approach
Stochastic stability analysis for Vehicular Networked Systems with State-dependent bursty fading channels: A self-triggered approach
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DOI：
10.1016/j.automatica.2020.109352
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Bin Hu
中科院分区：
文献类型：
--
作者：
Bin Hu
车辆网络系统（VNS）是一种移动的自组织网络，车辆通过无线通信网络交换信息，以确保安全高效的运行。然而，这是具有挑战性的，以确保系统的安全性和效率，因为在车辆导航系统中的无线信道往往受到状态依赖的深衰落，其中的数据速率遭受严重的下降和变化的车辆状态的函数。车辆状态和通道状态之间的耦合，从而失效的分离原则，设计基于事件的控制策略。本文采用状态相关衰落信道模型，提出了一种新的自触发机制，在该机制下，VNS在保持随机稳定性的同时保证了通信带宽的有效利用。在所提出的自触发方案下，本文提出了一种新的信源编码方案，该方案在状态相关衰落信道下跟踪车辆状态并保证性能。通过一个领导者-跟随者的例子验证了该方案相对于其他基于事件的策略的有效性和优势。
Vehicular Networked Systems (VNS) are mobile ad hoc networks where vehicles exchange information over wireless communication networks to ensure safe and efficient operation. It is, however, challenging to ensure system safety and efficiency as the wireless channels in VNS are often subject tostate-dependent deep fadeswhere the data rate suffers a severe drop and changes as a function of vehicle states. Such couplings between vehicle states and channel states in VNS thereby invalidate the use of separation principle to design event-based control strategies. By adopting astate-dependent fading channel model, this paper presents a novel self-triggered scheme under which the VNS ensures efficient use of communication bandwidth while preserving stochastic stability. Under the proposed self-triggered scheme, this paper presents a novel source coding scheme that tracks vehicle’s states with performance guarantee in the presence of state-dependent fading channels. The efficacy and advantages of the proposed scheme over other event-based strategies are verified by a leader–follower example.