Conference Proceedings
Decentralized subspace tracking via gossiping
L Li, X Li, A Scaglione, JH Manton
Lecture Notes in Computer Science Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics | SPRINGER-VERLAG BERLIN | Published : 2010
Abstract
We consider a fully decentralized model for adaptively tracking the signal's principal subspace, which arises in multi-sensor array detection and estimation problems. Our objective is to equip the network of dispersed sensors with a primitive for online spectrum sensing, which does not require a central fusion node. In this model, each node updates its local subspace estimate with its received data and a weighted average of the neighbors' data. The quality of the estimate is measured by the total subspace mismatch of the individual subspace component estimates, which converge asymptotically in the Lyapunov sense. © 2010 Springer-Verlag.
Grants
Awarded by Direct For Computer & Info Scie & Enginr
Awarded by Direct For Computer & Info Scie & Enginr; Division of Computing and Communication Foundations
Awarded by Division of Computing and Communication Foundations