@ARTICLE{Anderson2009Challenges,
  author = {Eric Anderson and Gary Yee and Caleb Philips and Michael Buettner
	and Douglas Sicker and Dirk Grunwald},
  title = {Challenges in Deploying Steerable Wireless Testbeds},
  journal = {In submission to Mobile Networks and Applications},
  year = {2009},
  publisher = {{ACM}/Springer Verlag},
  abstract = {Phased array antennas enable the use of real-time beam-forming and
	null-steering to further increase control of signal strength and
	interference in wireless networks. Understanding the potential of
	this platform for both wireless mesh networks and single-hop networks
	is becoming more important as smart antennas begin to emerge in networking
	standards such as 802.11n and 802.16. Prior attempts to test non-standard
	antenna platforms have typically focused around simulations, fixed
	directional antenna testbeds that are unable to perform null-steering,
	and small scale temporary setups utilizing 1 or 2 phased array antenna
	nodes over the span of a few hundred meters. This paper presents
	the challenges encountered -- and solutions developed -- in building
	WART, a permanent, campus-wide testbed for wireless networking with
	beam-forming antennas. We use affordable commercial off-the-shelf
	(COTS) hardware as both a measurement apparatus and the system under
	test. This approach makes it possible to develop and test networking
	protocols using equipment similar to what may be available operationally,
	but also presents difficulties beyond those typically encountered
	with specialized measurement hardware. We show that \emph{system-level}
	techniques can adequately overcome those component limitations.},
  owner = {andersoe},
  timestamp = {2009.01.03}
}