455 citations · 930 across the 24 of their papers we have counts for
18 papers · 1 filter
Fed-PELAD: Communication-Efficient Federated Learning for Massive MIMO CSI Feedback with Personalized Encoders and a LoRA-Adapted Shared Decoder
Yixiang Zhou, Tong Wu, Meixia Tao +1
This paper addresses the critical challenges of communication overhead, data heterogeneity, and privacy in deep learning for channel state information (CSI) feedback in massive MIM…
Joint Phase-Time Arrays: A Paradigm for Frequency-Dependent Analog Beamforming in 6G
Vishnu V. Ratnam, Jianhua Mo, Ahmad AlAmmouri +4
Hybrid beamforming is an attractive solution to build cost-effective and energy-efficient transceivers for millimeter-wave and terahertz systems. However, conventional hybrid beamf…
Sub-Chain Beam for mmWave Devices: A Trade-off between Power Saving and Beam Correspondence
Jianhua Mo, Daehee Park, Boon Loong Ng +4
Beam correspondence, or downlink-uplink (DL-UL) beam reciprocity, refers to the assumption that the best beams in the DL are also the best beams in the UL. This is an important ass…
Beam Codebook Design for 5G mmWave Terminals
Jianhua Mo, Boon Loong Ng, Sanghyun Chang +6
A beam codebook of 5G millimeter wave (mmWave) for data communication consists of multiple high-peak-gain beams to compensate the high pathloss at the mmWave bands. These beams als…
Grip-Aware Analog mmWave Beam Codebook Adaptation for 5G Mobile Handsets
Ahmad AlAmmouri, Jianhua Mo, Boon Loong Ng +2
This paper studies the effect of the user hand grip on the design of beamforming codebooks for 5G millimeter-wave (mmWave) mobile handsets. The high-frequency structure simulator (…
Limited Feedback in Single and Multi-user MIMO Systems with Finite-Bit ADCs
Jianhua Mo, Robert W. Heath
Communication systems with low-resolution analog-to-digital-converters (ADCs) can exploit channel state information at the transmitter and receiver. This paper presents codebook de…
Limited Feedback in MISO Systems with Finite-Bit ADCs
Jianhua Mo, Robert W. Heath
We analyze limited feedback in systems where a multiple-antenna transmitter sends signals to single-antenna receivers with finite-bit ADCs. If channel state information (CSI) is no…
Channel Estimation in Broadband Millimeter Wave MIMO Systems with Few-Bit ADCs
Jianhua Mo, Philip Schniter, Robert W. Heath
We develop a broadband channel estimation algorithm for millimeter wave (mmWave) multiple input multiple output (MIMO) systems with few-bit analog-to-digital converters (ADCs). Our…
Hybrid Architectures with Few-Bit ADC Receivers: Achievable Rates and Energy-Rate Tradeoffs
Jianhua Mo, Ahmed Alkhateeb, Shadi Abu-Surra +1
Hybrid analog/digital architectures and receivers with low-resolution analog-to-digital converters (ADCs) are two low power solutions for wireless systems with large antenna arrays…
Near Maximum-Likelihood Detector and Channel Estimator for Uplink Multiuser Massive MIMO Systems with One-Bit ADCs
Junil Choi, Jianhua Mo, Robert W. Heath
In massive multiple-input multiple-output (MIMO) systems, it may not be power efficient to have a high-resolution analog-to-digital converter (ADC) for each antenna element. In thi…
Limited Feedback in Multiple-Antenna Systems with One-Bit Quantization
Jianhua Mo, Robert W. Heath
Communication systems with low-resolution analog-to-digital-converters (ADCs) can exploit channel state information at the transmitter (CSIT) and receiver. This paper presents init…
Capacity Analysis of One-Bit Quantized MIMO Systems with Transmitter Channel State Information
Jianhua Mo, Robert W. Heath
With bandwidths on the order of a gigahertz in emerging wireless systems, high-resolution analog-to-digital convertors (ADCs) become a power consumption bottleneck. One solution is…
Secure Beamforming for MIMO Two-Way Communications with an Untrusted Relay
Jianhua Mo, Meixia Tao, Yuan Liu +1
This paper studies the secure beamforming design in a multiple-antenna three-node system where two source nodes exchange messages with the help of an untrusted relay node. The rela…
QoS-Aware Transmission Policies for OFDM Bidirectional Decode-and-Forward Relaying
Yuan Liu, Jianhua Mo, Meixia Tao
Two-way relaying can considerably improve spectral efficiency in relay-assisted bidirectional communications. However, the benefits and flexible structure of orthogonal frequency d…
Degrees of Freedom for MIMO Two-Way X Relay Channel
Zhengzheng Xiang, Meixia Tao, Jianhua Mo +1
We study the degrees of freedom (DOF) of a multiple-input multiple-output (MIMO) two-way X relay channel, where there are two groups of source nodes and one relay node, each equipp…
Relay Placement for Physical Layer Security: A Secure Connection Perspective
Jianhua Mo, Meixia Tao, Yuan Liu
This work studies the problem of secure connection in cooperative wireless communication with two relay strategies, decode-and-forward (DF) and randomize-and-forward (RF). The four…
Power and Subcarrier Allocation for Physical-Layer Security in OFDMA-based Broadband Wireless Networks
Xiaowei Wang, Meixia Tao, Jianhua Mo +1
Providing physical-layer security for mobile users in future broadband wireless networks is of both theoretical and practical importance. In this paper, we formulate an analytical…
Cooperative Secret Communication with Artificial Noise in Symmetric Interference Channel
Jingge Zhu, Jianhua Mo, Meixia Tao
We consider the symmetric Gaussian interference channel where two users try to enhance their secrecy rates in a cooperative manner. Artificial noise is introduced along with useful…