577 citations · 2.9k across the 71 of their papers we have counts for
8 papers · 1 filter
BDMA for Millimeter-Wave/Terahertz Massive MIMO Transmission with Per-Beam Synchronization
Li You, Xiqi Gao, Geoffrey Ye Li +2
We propose beam division multiple access (BDMA) with per-beam synchronization (PBS) in time and frequency for wideband massive multiple-input multiple-output (MIMO) transmission ov…
Omnidirectional Space-Time Block Coding for Common Information Broadcasting in Massive MIMO Systems
Xin Meng, Xiang-Gen Xia, Xiqi Gao
In this paper, we design space-time block codes (STBCs) to broadcast the common information omnidirectionally in a massive MIMO downlink. To reduce the burden of the downlink chann…
Radial Velocity Retrieval for Multichannel SAR Moving Targets with Time-Space Doppler De-ambiguity
Jia Xu, Zu-Zhen Huang, Zhi-Rui Wang +3
In this paper, with respect to multichannel synthetic aperture radars (SAR), we first formulate the problems of Doppler ambiguities on the radial velocity (RV) estimation of a grou…
Codebook Design for Millimeter-Wave Channel Estimation with Hybrid Precoding Structure
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
In this paper, we study hierarchical codebook design for channel estimation in millimeter-wave (mmWave) communications with a hybrid precoding structure. Due to the limited saturat…
Low Complexity Hybrid Precoding and Channel Estimation Based on Hierarchical Multi-Beam Search for Millimeter-Wave MIMO Systems
Zhenyu Xiao, Pengfei Xia, Xiang-Gen Xia
In millimeter-wave (mmWave) MIMO systems, while a hybrid digital/analog precoding structure offers the potential to increase the achievable rate, it also faces the challenge of the…
Fast DGT Based Receivers for GFDM in Broadband Channels
Peng Wei, Xiang-Gen Xia, Yue Xiao +1
Generalized frequency division multiplexing (GFDM) is a recent multicarrier 5G waveform candidate with flexibility of pulse shaping filters. However, the flexibility of choosing a…