@inproceedings{c6231de52bfb418abe76827cf23e95b0,
title = "Estimation of subspace occupancy",
abstract = "The ability to identify unoccupied resources in the radio spectrum is a key capability for opportunistic user in a cognitive radio environment. This paper draws upon and extends geometrically based ideas in statistical signal processing to develop estimators for the rank and the occupied subspace in a multi-user environment from multiple temporal samples of the signal received at a single antenna. These estimators enable identification of resources (i.e., the orthogonal complement of the occupied subspace) that may be exploitable by an opportunistic user.",
keywords = "Cognitive radio, MAP estimation, MIMO communications, channel sensing, multi-channel sensing, rank estimation",
author = "Kaitlyn Beaudet and Douglas Cochran",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015 ; Conference date: 02-11-2014 Through 05-11-2014",
year = "2015",
month = apr,
day = "24",
doi = "10.1109/ACSSC.2014.7094735",
language = "English (US)",
series = "Conference Record - Asilomar Conference on Signals, Systems and Computers",
publisher = "IEEE Computer Society",
pages = "1599--1603",
editor = "Matthews, {Michael B.}",
booktitle = "Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers",
}