In this paper, the performance of an underlay multiple-input multiple-output (MIMO) cognitive radio system is analytically studied. In particular, the secondary transmitter operates in a spatial ...

Lower all VHF and radio antennas so that they are out of harm’s way. Tie down anything that can’t be removed. Ensure the bilge pumps and float switches are operational on the boat.

We experimentally demonstrate the transmission of multiorder quadrature amplitude modulation (QAM) millimeter wave (MMW) orthogonal frequency division (OFDM) signal at 28 GHz radio frequency (RF). To ...