... to the 72-96DS0s per 6 MHz channel delivered by TDM/QPSK systems. Furthermore, the OFDM modulationscheme more effectively combats the type of interference most frequently encountered in the upstream ... supports a favorable business equation for the service provider. The OFDMA/QAM-32 solution employed by the ADC Homeworx system delivers the most services in the least amount of bandwidth, providing ... signals. In the case of low-level impulsenoise, power is distributed throughout the entire spectrum; therefore, its effect on any single DS0 isgreatly reduced in FDMA systems. The Homeworx...