IEEE Transactions on Signal Processing
Broadcast gossip algorithms for consensus
IEEE Transactions on Signal Processing
Gossip consensus algorithms via quantized communication
Automatica (Journal of IFAC)
Impact of heterogeneous link qualities and network connectivity, on binary consensus
ACC'09 Proceedings of the 2009 conference on American Control Conference
Distributed Consensus Over Wireless Sensor Networks Affected by Multipath Fading
IEEE Transactions on Signal Processing - Part II
Consensus in Ad Hoc WSNs With Noisy Links—Part I: Distributed Estimation of Deterministic Signals
IEEE Transactions on Signal Processing
Distributed Average Consensus With Dithered Quantization
IEEE Transactions on Signal Processing - Part I
IEEE Transactions on Signal Processing
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In this paper, we consider a cooperative network that is trying to reach consensus on the occurrence of an event, by communicating over time-varying network topologies with fast fading channels. We mathematically characterize both the asymptotic and transient behaviors of the network. We show that the network converges to a memoryless state asymptotically, which is undesirable. However, the network can still be in consensus for a long period of time. In order to characterize the transient behavior, we then derive a tight approximation for the second largest eigenvalue of the underlying average probability transition matrix in fading environments. We show the impact of channel unreliability and network topology on consensus performance and shed light on the underlying tradeoffs in terms of speed of convergence and memoryless asymptotic behavior.