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This paper investigates a consensus problem of the fractional version of second-order system with communication delay under both directed and undirected topologies. By applying the frequency domain method, a sufficient condition is given to ensure the fractional version of second-order consensus facing communication delays. It is proof that fractional version of second-order consensus can be reached...
Motivated by reduction of computational complexity, this work develops a pipelined adaptive filter architecture using the sign-error least mean square (SELMS) algorithm. The proposed algorithm was implemented with less than half the amount of calculation consumed for the conventional architectures. Besides, the proposed designs derived by retiming technique and with low latency also provide a faster...
Multicast, transmitting packets from one source to a group of destinations, is a popular service in Internet and now in the datacenter network. However, a unified multicast algorithm cannot satisfy the diverse performance requirements from different users. Hence customized multicast services are proposed in software defined networks (SDN) in this paper. We tackle a few associated technical challenges,...
Programming a network for innovative services or for function improvements has never been easier using Software-Defined Networking (SDN). However, the programming tasks can also be significantly complicated by the asynchrony of data plane states and complexities of service control states. In order to reduce the complexity for programming a network service in Distributed Control Plane of SDN, we propose...
As a key issue of building a virtual network (VN), the VN mapping problem can be addressed by various state-of-the-art algorithms. While these algorithms are efficient for the construction of unicast service-oriented VNs, they are generally not suitable for multicast cases. In this paper, we investigate the mapping problem in the context of virtual multicast service-oriented network subject to delay...
The main objective of this paper is to demonstrate the feasibility of Internet-based remote monitored control system for teaching. An open-loop unstable dual-parallel coupled inverted pendulum platform is constructed and uses to develop the NCSs with real-time application interface. Client-Server architecture is developed with the network communication for closed-loop control. And a novel grey prediction...
The issue of asymptotical stability for MIMO continuous-time networked control systems (NCSs) based on multi-packet transmission is researched, where its network transmission is connected with multi-delays. The complete mathematical model of the NCSs is derived. The criteria of delay-dependent asymptotical stability for systems are given. And the sufficient condition for asymptotical stability is...
Network-induced delays in a networked control system (NCS) are stochastic continuous variables that depend on the current network state, which, as an abstract and hidden variable, can not be well defined but can be perceived by the observation of the packet-delay process. We model the network in an NCS as a hidden Markov chain and the network delay as stochastic variable whose probability density...
The problem of data dropout and transmission delays induced by communication channel in networked control systems (NCSs) was investigated in this paper, where output feedback control law was employed. These delays and data dropout might deteriorate the system performance and even cause the system instability. To guarantee the stability of such NCSs, we proposed a new method to model the networked...
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