Title: Comparison of QPSK/QAM OFDM and Spread Spectrum for the 2-11 GHz PMP BWAS Document Number: IEEE 802.16.3c-00/23 URL: <http://ieee802.org/16/sub11/contrib/802163c-00_23.pdf> Source: Malcolm Sellars <mailto:msellars@adaptivebroadband.com> Demos Kostas <mailto:dkostas@adaptivebroadband.com>