Can SMDA Work for Wi-Fi?

In an interview earlier this week with Tropos Networks, I asked Saar Gillai, that firm%u2019s engineering vice president, whether SDMA was practical. Tropos doesn%u2019t use anything like that technology, and Wavion could potentially challenge (or partner with) Tropos if SDMA works as they hope. Gillai said that SDMA was possible%u2014it has been used with specific devices%u2014but fiendishly difficult, which is a fairly positive answer from a company that has gone done a different technology path. Gillai doesn%u2019t believe the numbers on density put out by Wavion and others, as he sees MIMO as more of a coverage than performance technology on the metro-scale.