981 citations · 2k across the 31 of their papers we have counts for
32 papers
Block-Level MU-MISO Interference Exploitation Precoding: Optimal Structure and Explicit Duality
Junwen Yang, Ang Li, Xuewen Liao +2
This paper investigates block-level interference exploitation (IE) precoding for multi-user multiple-input single-output (MU-MISO) downlink systems. To overcome the need for symbol…
Block-Level Interference Exploitation Precoding for MU-MISO: An ADMM Approach
Yiran Wang, Yunsi Wen, Ang Li +2
We study constructive interference based block-level precoding (CI-BLP) in the downlink of multi-user multiple-input single-output (MU-MISO) systems. Specifically, our aim is to ex…
Symbol-Level Precoding for MU-MIMO System with RIRC Receiver
Xiao Tong, Ang Li, Lei Lei +2
Consider a multiuser multiple-input multiple-output (MU-MIMO) downlink system in which the base station (BS) sends multiple data streams to multi-antenna users via symbol-level pre…
STAR-RIS Enhanced Joint Physical Layer Security and Covert Communications for Multi-antenna mmWave Systems
Han Xiao, Xiaoyan Hu, Ang Li +4
This paper investigates the utilization of simultaneously transmitting and reflecting RIS (STAR-RIS) in supporting joint physical layer security (PLS) and covert communications (CC…
Faster-Than-Nyquist Symbol-Level Precoding for Wideband Integrated Sensing and Communications
Zihan Liao, Fan Liu, Ang Li +1
In this paper, we present an innovative symbol-level precoding (SLP) approach for a wideband multi-user multi-input multi-output (MU-MIMO) downlink Integrated Sensing and Communica…
Deep Learning-Based Channel Extrapolation for Pattern Reconfigurable Massive MIMO
Mu Liang, Ang Li
Reconfigurable antennas that can dynamically change their operation state exhibit excellent adaptivity and flexibility over traditional antennas, and MIMO arrays that consist of mu…
Speeding-up Symbol-Level Precoding Using Separable and Dual Optimizations
Junwen Yang, Ang Li, Xuewen Liao +1
Symbol-level precoding (SLP) manipulates the transmitted signals to accurately exploit the multi-user interference (MUI) in the multi-user downlink. This enables that all the resul…
NOMA Made Practical: Removing the Receive SIC Processing through Interference Exploitation
Abdelhamid Salem, Xiao Tong, Ang Li +1
Non-orthogonal multiple access (NOMA) is a powerful transmission technique that enhances the spectral efficiency of communication links, and is being investigated for 5G standards…
Low Complexity SLP: An Inversion-Free, Parallelizable ADMM Approach
Junwen Yang, Ang Li, Xuewen Liao +1
We propose a parallel constructive interference (CI)-based symbol-level precoding (SLP) approach for massive connectivity in the downlink of multiuser multiple-input single-output…
Practical Interference Exploitation Precoding without Symbol-by-Symbol Optimization: A Block-Level Approach
Ang Li, Chao Shen, Xuewen Liao +2
In this paper, we propose a constructive interference (CI)-based block-level precoding (CI-BLP) approach for the downlink of a multi-user multiple-input single-output (MU-MISO) com…
Block-Level Interference Exploitation Precoding without Symbol-by-Symbol Optimization
Ang Li, Chao Shen, Xuewen Liao +2
Symbol-level precoding (SLP) based on the concept of constructive interference (CI) is shown to be superior to traditional block-level precoding (BLP), however at the cost of a sym…
Reconfigurable MIMO towards Electro-magnetic Information Theory: Capacity Maximization Pattern Design
Haonan Wang, Ang Li, Ya-feng Liu +3
In this paper, we focus on the pattern reconfigurable multiple-input multiple-output (PR-MIMO), a technique that has the potential to bridge the gap between electro-magnetics and c…
Cramér-Rao Bound Optimization for Joint Radar-Communication Design
Fan Liu, Ya-Feng Liu, Ang Li +2
In this paper, we propose multi-input multi-output (MIMO) beamforming designs towards joint radar sensing and multi-user communications. We employ the Cramér-Rao bound (CRB) as a p…
1-Bit Massive MIMO Transmission: Embracing Interference with Symbol-Level Precoding
Ang Li, Christos Masouros, A. Lee Swindlehurst +1
The deployment of large-scale antenna arrays for cellular base stations (BSs), termed as `Massive MIMO', has been a key enabler for meeting the ever-increasing capacity requirement…
Symbol-Level Precoding Made Practical for Multi-Level Modulations via Block-Level Rescaling
Ang Li, Fan Liu, Xuewen Liao +2
In this paper, we propose an interference exploitation symbol-level precoding (SLP) method for multi-level modulations via an in-block power allocation scheme to greatly reduce the…
Reconfigurable Intelligent Surface (RIS)-Enhanced Two-Way OFDM Communications
Chandan Pradhan, Ang Li, Lingyang Song +3
In this paper, we focus on the reconfigurable intelligent surface (RIS)-enhanced two-way device-to-device (D2D) multi-pair orthogonal-frequency-division-multiplexing (OFDM) communi…
Near-Optimal Interference Exploitation 1-Bit Massive MIMO Precoding via Partial Branch-and-Bound
Ang Li, Fan Liu, Christos Masouros +2
In this paper, we focus on 1-bit precoding for large-scale antenna systems in the downlink based on the concept of constructive interference (CI). By formulating the optimization p…
Hybrid Precoding Design for Reconfigurable Intelligent Surface aided mmWave Communication Systems
Chandan Pradhan, Ang Li, Lingyang Song +2
In this letter, we focus on the hybrid precoding (HP) design for the reconfigurable intelligent surface (RIS) aided multi-user (MU) millimeter wave (mmWave) communication systems.…
Computation Offloading for IoT in C-RAN: Optimization and Deep Learning
Chandan Pradhan, Ang Li, Changyang She +2
We consider computation offloading for Internet-of-things (IoT) applications in multiple-input-multiple-output (MIMO) cloud-radio-access-network (C-RAN). Due to the limited battery…
Secure Interference Exploitation Precoding in MISO Wiretap Channel: Destructive Region Redefinition with Efficient Solutions
Ye Fan, Xuewen Liao, Ang Li +1
In this paper, we focus on the physical layer security for a K-user multiple-input-single-output (MISO) wiretap channel in the presence of a malicious eavesdropper, where we propos…
Interference Exploitation 1-Bit Massive MIMO Precoding: A Partial Branch-and-Bound Solution with Near-Optimal Performance
Ang Li, Fan Liu, Christos Masouros +2
In this paper, we focus on 1-bit precoding approaches for downlink massive multiple-input multiple-output (MIMO) systems, where we exploit the concept of constructive interference…
Beam Allocation for Millimeter-Wave MIMO Tracking Systems
Deyou Zhang, Ang Li, He Chen +4
In this paper, we propose a new beam allocation strategy aiming to maximize the average successful tracking probability (ASTP) of time-varying millimeter-wave MIMO systems. In cont…
Hybrid Precoder and Combiner for Imperfect Beam Alignment in mmWave MIMO Systems
Chandan Pradhan, Ang Li, Li Zhuo +2
In this letter, we aim to design a robust hybrid precoder and combiner against beam misalignment in millimeter-wave (mmWave) communication systems. We consider the inclusion of the…
Robust Hybrid Precoding for Beam Misalignment in Millimeter-Wave Communications
Chandan Pradhan, Ang Li, Li Zhuo +2
In this paper, we focus on the phenomenon of beam misalignment in Millimeter-wave (mmWave) multi-receiver communication systems, and propose robust hybrid precoding designs that al…