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作者：Hayashi, Naoki
作者单位：University of Osaka
摘要：This article considers a distributed method for constrained convex optimization over open multiagent networks. In open multiagent systems, each agent freely joins or leaves the network at its timing. The active agents, which participate in the network, have time-varying local cost functions and attempt to find an optimal strategy that minimizes the cumulative local cost functions in a finite-time horizon. Each active agent updates its estimation by a distributed subgradient-based algorithm wit...
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作者：Li, Fengzhong; Liu, Yungang
作者单位：Shandong University
摘要：Nowadays, control-dependent stochastic noise is ruled out in adaptive control, whereas such noise can be encountered in financial, aerospace, and biomechanical models. The status is due to the presence of adaptive control in the diffusion term. The diffusion coefficient, heavily dependent on the adaptive signal (with unexpected size), undermines stochastic stability via its quadratic form which cannot be suppressed merely by the control itself in the drift term. This compels us to exploit the ...
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作者：Qian, Jiachen; Duan, Peihu; Duan, Zhisheng; Shi, Ling
作者单位：Peking University; Hong Kong University of Science & Technology
摘要：This article mainly focuses on distributed filtering for a discrete time-varying system observed by a sensor network, where each sensor can measure some partial state information of the system and communicate with its neighbors. A novel distributed event-triggered communication mechanism is designed to reduce the communication rate among the sensors and guarantee the performance of the filter. With a data scheduler, the sensor is able to decide whether to transmit data to its neighbors. By app...
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作者：Wang, Jian
作者单位：Bohai University
摘要：This article considers a control problem of discrete-time multiple-input multiple-output linear systems involving input quantization (for the output of the controller) and output quantization (for the output of the plant). Based on spherical polar coordinate quantizer, a quantization method with finite data rate is proposed for handling the nested quantization and achieving the convergence to the origin of the system with input and output quantization. Further, an optimalization problem is dev...
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作者：Zhang, Xueji; Hengster-Movric, Kristian
作者单位：Atlas Copco; Czech Technical University Prague
摘要：This note proposes a novel decentralized/decomposed design of distributed observers for general continuous-time linear time invariant systems. Each observer can only observe a portion of the system. By transforming the system to a real Jordan canonical form, an observability decomposition is performed based on Popov-Belevitch-Hautus test. Each observer reconstructs observable states from its local measurements. The unobservable states are reconstructed relying on a communication network, by vi...
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作者：Lopez, Victor G.; Lewis, Frank L.; Liu, Mushuang; Wan, Yan
作者单位：Leibniz University Hannover; University of Texas System; University of Texas Arlington; University of Texas System; University of Texas Arlington
摘要：Differential graphical games model the interaction between networked dynamical agents that do not possess global state information available. In general, this lack of global information prevents the agents from playing their optimal Nash strategies. In this article, two different solution concepts for graphical games are proposed as practical alternatives when Nash equilibrium is not attainable among the players. The proposed solutions consider the case on which the players make optimistic ass...
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作者：Yin, Xiuxia; Yue, Dong; Han, Qing-Long
作者单位：Nanchang University; Nanjing University of Posts & Telecommunications; Swinburne University of Technology
摘要：When the communication weight has a short range, the distance between agents could tend to infinity for some initial conditions, which leads to the nonexistence of well-studied flocking behavior in the Cucker-Smale model with (or without) nonlinear velocity couplings. To control the distance, it is natural to consider this model with pairwise attractive potentials. Therefore, this note investigates the Cucker-Smale model with nonlinear velocity couplings and attractive potentials. When the att...
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作者：Liu, Changxin; Zhou, Zirui; Pei, Jian; Zhang, Yong; Shi, Yang
作者单位：University of Victoria; Huawei Technologies; Simon Fraser University
摘要：Decentralized optimization, particularly the class of decentralized composite convex optimization (DCCO) problems, has found many applications. Due to ubiquitous communication congestion and random dropouts in practice, it is highly desirable to design decentralized algorithms that can handle stochastic communication networks. However, most existing algorithms for DCCO only work in networks that are deterministically connected during bounded communication rounds, and therefore, cannot be exten...
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作者：Wang, Yongqiang; Basar, Tamer
作者单位：Clemson University; University of Illinois System; University of Illinois Urbana-Champaign
摘要：Distributed optimization enables networked agents to cooperatively solve a global optimization problem. Despite making significant inroads, most existing results on distributed optimization rely on noise-free information sharing among the agents, which is problematic when communication channels are noisy, messages are coarsely quantized, or shared information are obscured by additive noise for the purpose of achieving differential privacy. The problem of information-sharing noise is particular...
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作者：Xie, Junyao; Humaloja, Jukka-Pekka; Koch, Charles Robert; Dubljevic, Stevan
作者单位：University of Alberta; University of Alberta
摘要：In this article, we address the constrained output estimation of discrete-time linear distributed parameter systems in the presence of plant and measurement disturbances. Sufficient conditions are proposed for the strong stability of the proposed moving horizon estimator. We further show that the discrete-time estimation results can be linked to continuous-time infinite-dimensional systems described by partial differential equations with unbounded disturbance and output operators by using the ...
