A low-cost, high-precision signal generation algorithm and prototype implementation for software-defined radios

Next generation wireless communications systems are built on highly-adaptive components in order to meet the ever-increasing requirements and to keep up with the dynamically changing environmental conditions. Software-defined radio (SDR) is considered among vital components of next generation wireless communications due to its capabilities such as spectrum monitoring and sensing along with application-specific waveform generation as well as fast switching between several standards. Therefore, it is expected from SDR that it fulfills fundamental communications operations and functionalities of high-precision with the lowest computational complexity. In this study, a low-computational complexity and high-precision signal generation algorithm operating on digital signal processor (DSP) is proposed for SDR and implemented. Its performance results are compared with those of several algorithms. Results are discussed along with future directions.