Even the most modern 4G/LTE cellular networks today are limited to operating at QAM16 single carrier for all uplink connections (the optional standard provision for QAM64, is not practical and has never been achieved to date). Without making any changes to the RF, antenna, or analog front end, OFD-WAM enables a QAM256 equivalent (WAM-8), and with a full multi-carrier OFDM support, while consuming the same overall system power. In this example, OFD-WAM enables a true multi-carrier scheme with the same (or lower) power back-off levels of the single-carrier scheme (SC-FDMA) used all over the world today. In addition to over 200% network capacity, the benefits are tremendous including: superior interference tolerance, effective MIMO modes, and dramatically better performance in severe multipath scenarios with Doppler Spread.