Software-based digital receiver adaptable to multiple multiplexing schemes

A digital radio receiver for recovering symbols from a received signal, comprising:

• a channel estimator configured to generate channel characteristics from a training signal;
• a parameter controller, coupled to the channel estimator, including memory and processor, the memory for storing configuration data and software for executing in the processor, the parameter controller for generating receiver configuration parameters for the channel estimator;
• a decomposition unit, coupled to the parameter controller, configured to decompose the received signal into samples according to the receiver configuration parameters to adapt the receiver to a plurality of multiplexing schemes, the received signal including time-shifted and frequency-shifted copies of a transmitted signals;
• a combiner, coupled to the decomposition unit, forming an inner product of the samples and the channel characteristics;
• and
• a decision unit, coupled to the combiner, configured to recover transmitted symbols from the inner product.