Since J. Mitola's work in 1992, Software Defined Radios (SDRs) have been
quite a hot topic in wireless systems research. Though many notable
achievements were reported in the field, the scarcity of computational power on
general purpose CPUs has always constrained their wide adoption in production
environments. If conveniently applied within an SDR context, classical concepts
known in computer science as space/time tradeoffs can be extremely helpful when
trying to mitigate this problem.