• Conference Object  

      Decentralised minimum-time average consensus in digraphs 

      Charalambous, T.; Yuan, Y.; Yang, T.; Pan, W.; Hadjicostis, Christoforos N.; Johansson, M. (Institute of Electrical and Electronics Engineers Inc., 2013)
      Distributed algorithms for average consensus in directed graphs are typically asymptotic in the literature. In this work, we propose a protocol to distributively reach average consensus in a finite number of steps on ...
    • Conference Object  

      Distributed balancing of a digraph with integer weights 

      Rikos, A. I.; Hadjicostis, Christoforos N. (Institute of Electrical and Electronics Engineers Inc., 2013)
      We address the integer weight-balancing problem for a distributed system whose components (nodes) can exchange information via interconnection links (edges) that form an arbitrary, possibly directed, communication topology ...
    • Conference Object  

      Distributed balancing under interval flow constraints in directed communication topologies 

      Hadjicostis, Christoforos N.; Domínguez-Garcia, A. D. (Institute of Electrical and Electronics Engineers Inc., 2018)
      In this paper, we propose a distributed algorithm that relies on a strongly connected (but possibly directed) communication topology to achieve admissible and balanced flows in a given network. More specifically, we consider ...
    • Conference Object  

      Distributed formation of balanced and bistochastic weighted digraphs in multi-agent systems 

      Charalambous, T.; Hadjicostis, Christoforos N. (2013)
      We propose two distributed algorithms, one for solving the weight-balance problem and another for solving the bistochastic matrix formation problem, in a distributed system whose components (nodes) can exchange information ...
    • Article  

      Distributed matrix scaling and application to average consensus in directed graphs 

      Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (2013)
      We propose a class of distributed iterative algorithms that enable the asymptotic scaling of a primitive column stochastic matrix, with a given sparsity structure, to a doubly stochastic form. We also demonstrate the ...
    • Conference Object  

      Distributed strategies for average consensus in directed graphs 

      Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (2011)
      We address the average consensus problem for a distributed system whose components (nodes) can exchange information via interconnections (links) that form an arbitrary, strongly connected but possibly directed, topology ...
    • Conference Object  

      Distributed strategies for balancing a weighted digraph 

      Hadjicostis, Christoforos N.; Rikos, A. (2012)
      A weighted digraph is balanced if, for each node, the sum of the weights of the edges outgoing from that node is equal to the sum of the weights of the edges incoming to that node. Weight-balanced digraphs play a key role ...
    • Conference Object  

      Integer weight balancing in directed graphs in the presence of communication delays 

      Rikos, A. I.; Hadjicostis, Christoforos N. (Institute of Electrical and Electronics Engineers Inc., 2015)
      A digraph with positive weights on its edges is weight-balanced if, for each node, the sum of the weights of the incoming edges equals the sum of the weights of the outgoing edges. Weight-balanced digraphs play an important ...
    • Conference Object  

      Resilient average consensus in the presence of heterogeneous packet dropping links 

      Hadjicostis, Christoforos N.; Domínguez-Garcia, A. D.; Vaidya, N. H. (2012)
      We address the average-consensus problem for a distributed system whose components (nodes) can exchange information via unreliable interconnections (edges) that form an arbitrary, possibly directed topology (digraph). We ...
    • Article  

      Resilient networked control of distributed energy resources 

      Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N.; Vaidya, N. H. (2012)
      This paper considers networked systems and develops distributed algorithm that is resilient against potential packet drops in the communication links between system components. We apply this algorithm to the problem of ...