Xenotran proposes to design a Forward Error Correction (FEC) device that is flexible and adaptive to changing communications needs. The FEC is based upon High-Dimensional Circular Trellis Coded Modulation (HDCTCM) and takes advantage of recent developments in iterative coding techniques. The underlying HDCTCM allows for dynamic trade-offs in latency, bandwidth, and spreading codes. A highly flexible FEC device, as proposed herein, will be paramount for the development of future communication systems. The implications to RF spectrum management are significant. The RF spectrum, which is currently partitioned according to frequency in a one-dimensional manner, could be managed dynamically as a multidimensional object of frequency, time, spreading code, and space.
