Title :
Dynamic average consensus over random networks with additive noise
Author :
Wang, Jing ; Elia, Nicola
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
In this paper, we consider distributed dynamic average consensus problem in the presence of uncertainties on information exchange. Two categories of noise are used to characterize these uncertainties: the first is multiplicative noise that captures the randomness of network connections, while the second is additive noise that describes several uncertainty sources. We propose an iterative algorithm that allows each agent to compute/track the average of their private dynamic signals in the presence of both kinds of noise. This algorithm relaxes restrictive assumptions on consensus over random directed network topologies, such as doubly stochastic weights, symmetric link switching styles, etc, and introduces new mechanisms for mitigating effects of communication uncertainties on information aggregation.
Keywords :
directed graphs; iterative methods; multi-agent systems; network theory (graphs); sensor fusion; stochastic processes; topology; additive noise; communication uncertainty; distributed dynamic average consensus problem; information aggregation; information exchange; iterative algorithm; multiplicative noise; network connection randomness; private dynamic signal; random directed network topology; random network; sensor fusion; stochastic weight; symmetric link switching style; Additive noise; Eigenvalues and eigenfunctions; Laplace equations; Network topology; Stability analysis; Uncertainty; Additive noise; Consensus; Dynamic average consensus; Link failures; Random networks; Sensor fusion;
Conference_Titel :
Decision and Control (CDC), 2010 49th IEEE Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-7745-6
DOI :
10.1109/CDC.2010.5718134