Blind Estimation of Transmit-Power for Multiple Wireless Sources

Received power measurements at spatially distributed, passive, monitors contain valuable information on the active wireless transmitters, which can be usefully exploited to make various inferences. In this paper, we study blind estimation of the number of active wireless sources, their transmission powers and their locations in the network based on received power measurements at multiple monitoring nodes, without assuming any prior knowledge or statistical characterization of these parameters. Utilizing geometrical analysis and algorithmic approach we present estimation algorithms for these parameters under signal combination from multiple transmitters. We present useful non-trivial insights regarding such inferences, and also present simulation results verifying the analysis and quantifying the performance of the estimation algorithms.

By: Ivan Wang-Hei Ho; Bong Jun Ko; Murtaza Zafer

Published in: RC24680 in 2008


This Research Report is available. This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). I have read and understand this notice and am a member of the scientific community outside or inside of IBM seeking a single copy only.


Questions about this service can be mailed to .