In the past ten years, there have been tremendous research progresses on massive MIMO
systems, most of which stand from the communications viewpoint. A new trend to investigate …

For millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems,
hybrid processing architecture is usually used to reduce the complexity and cost, which …

The emerging space-air-ground integrated network has attracted intensive research and
necessitates reliable and efficient aeronautical communications. This paper investigates …

Intelligent reflecting surfaces (IRSs) improve both the bandwidth and energy efficiency of
wideband communication systems by using low-cost passive elements for reflecting the …

For millimeter wave massive multiple-input multiple-output systems, the transceiver usually
adopts a hybrid precoding structure to reduce complexity and cost, which poses great …

In this paper, a channel state information (CSI) feedback method is proposed based on deep
transfer learning (DTL). The proposed method addresses the problem of high training cost of …

Integrated sensing and communications (ISAC) has attracted tremendous attention for the
future 6G wireless communications systems. To improve the transmission rates and sensing …

Millimeter wave (mmWave) wideband channels in a multiple-input multiple-output (MIMO)
transmission are described by a sparse set of impulse responses in the angle-delay, or …

Terahertz (THz) and intelligent reflecting surface (IRS) have been regarded as two
promising technologies to improve the capacity and coverage for future 6G networks …

In this paper, we investigate the channel estimation for massive multi-input multi-output
orthogonal frequency division multiplexing (MIMO-OFDM) systems. Using the sampled …