HyDRA: A hypervisor for software defined radios to enable radio virtualization in mobile networks

In this article, we present HyDRA, an SDR virtualization layer that enables the execution of multiple air-interfaces. HyDRA multiplexes raw IQ signal samples of multiple virtual RF front-ends into a single stream that can be transmitted. We also describe a proof-of-concept demonstration of HyDRA multiplexing IQ samples generated by LTE and NB-IoT SDRs into a single waveform.