In order to achieve the desired goals of the fifth generation (5G) wireless systems, exploring
new efficient physical layer techniques is necessary. Waveform design, millimeter waves …

Millimeter wave (mmWave) with its large spectrum bandwidth is an attractive technology to
achieve high date rate, high security and so on. However, it is always difficult to obtain …

Hybrid precoding (HP) plays a significant role in mm-Wave communication, which greatly
reduces the number of radio frequency (RF) chains compared to full digital baseband …

Hybrid precoding and combining is a practical technique in MU-MIMO system with
significantly reduced complexity. However, it still requires a complex analog network to …

Hybrid multiple-input multiple-output (MIMO) has been thought as a promising technology
for 5G communications. Compared with the fully-connected structure in hybrid MIMO …

Over recent years, the research and studies have focused on innovative solutions in various
aspects and phases related to the high demands on data rate and energy for fifth-generation …

The extremely high cost associated with massive multiple-input multiple-output (MIMO)
systems when it is employed with fully digital precoding can be reduced by applying hybrid …

Compressive channel estimation (CCE) schemes have been proposed in millimeter-wave
(mmWave) systems. The design of the analog combining matrix plays an important role to …

In order to achieve reliable communication with low time overhead and hardware cost in
multiple-input multiple-output (MIMO) systems, hybrid beamforming based on orthogonal …