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Distributed consensus for multiagent systems with communication delays and limited data rate. (English) Zbl 1234.68034
Summary: This paper considers the average consensus problem for multiagent networks with communication delays and limited data rate. On the one hand, communication delays often exist in information acquisition and transmission; on the other hand, only limited state information of agents can be transmitted to their neighbors at each time step due to bandwidth constraints. The average consensus problem becomes much more complicated when both delays and data-rate constraints are to be considered. In this paper, a distributed consensus protocol is proposed based on dynamic encoding and decoding. It is shown that for a connected network, as long as the time delays are bounded, the average consensus can be achieved with a finite communication data rate. In particular, it is shown that merely a one-bit information exchange between each pair of adjacent agents at each time step suffices to guarantee the average consensus.
MSC:
68M14Distributed systems
68Q85Models and methods for concurrent and distributed computing
68W15Distributed algorithms
68M10Network design and communication of computer systems