Prototyping of the receiver unit for a broadband access network

To exploit the potential of two way communication on CATV networks for advanced interactive telecommunication applications like video on-demand, a high speed modem for up stream communication is currently under development. We are using the rapid prototyping tool GRAPE to evaluate the digital receiver part of the modem which is described in detail. The sampling rates achieved for a 16 QAM modem on multiple DSP processors are reported.