@TechReport{	  it:2015-018,
  author	= {Johannes Nygren and Torbj{\"o}rn Wigren and Kristiaan
		  Pelckmans},
  title		= {Delay-Independent Stability Criteria for Networked Control
		  Systems},
  institution	= {Department of Information Technology, Uppsala University},
  department	= {Division of Systems and Control},
  year		= {2015},
  number	= {2015-018},
  month		= jun,
  abstract	= {The report analyses a networked control system consisting
		  of a LTI system coupled with a static nonlinearity, subject
		  to large delays in the feedback loop. This model is valid
		  for example in wireless data flow control, where a
		  saturation occurs since the flow is one-directional. The
		  present report extends previous results by proving
		  necessity, in case the loop gain is uniformly less than 1.
		  The results are validated and illustrated in a simulation
		  study.}
}