Spatially Reduced Search Joint Detection for Overloaded Array Processing

Capacity (measured in number of users/channel for a particular Quality of Service) is an important metric for any wireless communication system.  The easiest way to increase a capacity is to use more frequency-spectrum.  However, as the wireless industry is booming, increased demand for spectrum has made this option prohibitively expensive.  Antena Arrays have long been an attractive alternative for increasing the capacity of a wireless communication system.  We say an array is overloaded if the number of near-equal power signals impinging on it exceeds the number of antenna elements.  Conventional array processing receivers break down in overloaded environments. Virginia Tech has developed a new class of array processing algorithms which can process many more signals than elements with an achievable real-time computational complexity.  This algorithm allows a dramatic increase in the capacity of current wireless communication systems without using very large antenna arrays.
Patent Information:
App Type Country Serial No. Patent No. File Date Issued Date Patent Status
US Utility *United States 09/858,316 6,868,133 5/15/2001 3/15/2005 Issued
For Information, Contact:
Mike Miller
Senior Licensing Manager
Virginia Tech Intellectual Properties, Inc.
(540) 443-9228
James Hicks
Robert Boyle
Saffet Bayram
Jeffrey Reed