Loading [MathJax]/extensions/MathMenu.js
Infinite Impulse Response Graph Filters in Wireless Sensor Networks | IEEE Journals & Magazine | IEEE Xplore

Infinite Impulse Response Graph Filters in Wireless Sensor Networks


Abstract:

Many signal processing problems in wireless sensor networks can be solved by graph filtering techniques. Finite impulse response (FIR) graph filters (GFs) have received m...Show More

Abstract:

Many signal processing problems in wireless sensor networks can be solved by graph filtering techniques. Finite impulse response (FIR) graph filters (GFs) have received more attention in the literature because they enable distributed computation by the sensors. However, FIR GFs are limited in their ability to represent the global information of the network. This letter proposes a family of GFs with infinite impulse response (IIR) and provides algorithms for their distributed realization in wireless sensor networks. IIR GFs bring more flexibility to GF designers, as they can be designed and realized even when the graph spectrum is unknown. Numerical results show that IIR GFs are more accurate in approximating ideal GFs and more robust against network variation than FIR GFs.
Published in: IEEE Signal Processing Letters ( Volume: 22, Issue: 8, August 2015)
Page(s): 1113 - 1117
Date of Publication: 01 January 2015

ISSN Information:

Funding Agency:


References

References is not available for this document.