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In this paper, consensus problems of continuous-time networked multi-agent systems via sampled control are investigated. The sampled control protocols are induced from continuous-time linear consensus protocol by using periodic sampling technology and zero-order hold circuit. Two cases are considered: 1) networks without sampling delay; 2) networks with sampling delay. For each case, an algebraic-type...
This paper investigates average consensus problem in networks of continuous-time agents with delayed information and jointly-connected topologies. A sufficient condition in terms of linear matrix inequalities (LMIs) is given under which all agents asymptotically reach average consensus, where the communication structures vary over time and the corresponding graphs may not be connected. Finally, simulation...
This paper studies consensus problems of multiple second-order agents with time-varying topology. It is assumed that each possible interaction topology is strongly connected and balanced and each agent can only obtain the measurements of its position relative to its neighbors. A feasible protocol is proposed, and by applying the linear matrix inequality technique and the common Lyapunov function approach,...
Cooperative communications have been demonstrated to be effective in combating the multiple fading effects in wireless networks, and improving the network performance in terms of adaptivity, reliability, data throughput and network life time. In this paper, we investigate the use of cooperative communications for quality of service (QoS) provisioning in resource-constrained wireless sensor networks,...
This paper presents a new event-B based approach to reasoning about interaction protocols. We show how an event-B model can be structured from AUML protocol diagrams and then used to give a formal semantic to protocol diagrams which supports proofs of their correctness. More precisely, we give rules for the translation of protocol diagrams into event-B language. In particular, we focus on the translation...
The paper studies asynchronous consensus problems of continuous-time multi-agent systems with discontinuous information transmission. The proposed consensus control strategy is implemented based on the state information of each agent's neighbors at some discrete times. The asynchrony means that each agent's update times, at which the agent adjusts its dynamics, are independent of others'. Furthermore,...
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