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Uniform planar antenna (UPA) structures are expected to become popular for massive multiple-input multiple- output (MIMO) systems because they enable deployment of a large number of antennas in limited space. In frequency division duplexing (FDD) systems, quantized channel state information (CSI) should be fed back from users to base stations to make adaptive transmission possible. However, it is...
Massive multiple-input multiple-output (MIMO) with uniform planar arrays (UPAs), which is often referred to as full-dimension (FD) MIMO, is being strongly considered for future wireless communication standards. FD-MIMO can control transmit and receive beams in both the horizontal and vertical domains and fully exploit the large number of antennas of massive MIMO. It is widely accepted that Kronecker-product...
There is growing interest in using millimeter wave (mmWave) communication for fifth generation (5G) wireless systems because of the large bandwidth available in these frequencies. To overcome the higher path loss at mmWave bands, highly directional beamforming using large-scale, or massive, multiple-input multiple-output (MIMO) systems is critical. In this scenario, the problem of channel estimation...
The performance of a spectrum sensing algorithm is dependent on many factors such as total detection time, radio noise floor, and carrier frequency. In order to maximize detection capability, the radio platform for which the spectrum sensor is implemented must be sufficiently configurable. An appropriate platform to address such a problem is the Universal Software Radio Peripheral (USRP) with a SBX...
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