Although sensor networks has not been the focus of my research. I have worked on a couple of problems. The more recent one was node localization from an incomplete and approximate distance matrix. Nodes within a certain distance detect each other with high probability; and those beyond are detected with very low non-zero probability. Exploiting the low rank of this approximate distance matrix, we use MDS-Localize to locate the nodes. Previously I have conducted a study of digital signal processing in sensor network domain.
P. Drineas, A. Javed, M. Magdon-Ismail, G. Pandurangan, R.Virrankoski, and A. Savvides, Distance Matrix Reconstruction from Incomplete Distance Information for Sensor Network Localization, 3rdAnnual IEEE Conference on Sensor, Mesh and Ad Hoc Communications and Networks (SECON), September 2006.
(The picture has nothing to do with sensors but me and Ja are trying to network.)