IQ modulators advance reconfigurable radio 
While true software-defined radio has yet to be implemented cost effectively for general applications, improvements in signal-processing functions such as IQ modulators move the RF industry ever closer to that goal....

Standardizing Transceiver APIs for Software Defined and Cognitive Radio 
Over the past several years, numerous specifications have been developed defining the interface between the RF front-end and the baseband processing sub-systems...

Standardizing smart antenna API for SDR networks 
In addition to defining the smart antenna application programming interface (API), this article will also describe the smart antenna API in detail and explore its benefits. Plus, it will introduce the smart antenna working group and the process they are following in developing this API, as well discuss steps toward standardization....