Paper: | SPCOM-L7.3 |
Session: | Wireless Sensor Networks |
Time: | Friday, May 19, 14:40 - 15:00 |
Presentation: |
Lecture
|
Topic: |
Signal Processing for Communication: Distributed and collaborative signal processing |
Title: |
SOI-KF: Distributed Kalman Filtering with Low-Cost Communications using the Sign Of Innovations |
Authors: |
Alejandro Ribeiro, Georgios Giannakis, Stergios Roumeliotis, University of Minnesota, United States |
Abstract: |
We derive and analyze distributed state estimators of dynamical stochastic processes, whereby low communication cost is effected by requiring the transmission of a single bit per observation. Following a Kalman filtering (KF) approach, we develop recursive algorithms for distributed state estimation based on the sign of innovations (SOI). Even though SOI-KF can afford minimal communication overhead, we prove that in terms of performance and complexity it comes very close to the clairvoyant KF which is based on the analog-amplitude observations. Reinforcing our conclusions, we show that the SOI-KF applied to distributed target tracking based on distance only observations yields accurate estimates at low communication cost. |